ۥ-!@ L-MU-::<<<<<"<h@J[@[@[@s@%A[@BBG:0H0H0H0H0H0H0H2H2H2H!SH3I3I M4AMHQI<QIQIXu(   2864I ISDN Modem User's Manual Documents No.: 84091901 Rev. 2.0 ZyXEL COMMUNICATIONS CORPORATION   User's Manual for Elite 2864I Request For Comments : Any comments or suggestions about the ZyXEL ISDN products as well as this manual are welcome. Please send your message to : ZyXEL Communications Corporation 2nd Flr. 58 Park Avenue II Science Based Industrial Park Hsinchu, Taiwan 30077 R.O.C. Tel: (886) 35-783942 Fax: (886) 35-782439 BBS: (886) 35-787045 Internet: jacyoy@zyxel.hinet.net (Jesse Ou-Yang) support@zyxel.hinet.net (Technical Support) Notice: This draft user's manual contains preliminary data, and supplementary data may be released at a later time. ZyXEL Communications Corporation reserves the right to make changes at any time without notice in order to improve design and supply the best possible product. TABLE OF CONTENTS TOC \oChapter 1 Introduction 1 Key Features of the 2864I ISDN Modem 1 Family of the ZyXEL ISDN Modems 3 U-Interface Option 3 Chapter 2 Getting Started 4 Packing List of 2864I ISDN Modem 4 Upgrading the 2864I with New Firmware 4 Upgrading from the Elite 2864 to the Elite 2864I 5 How to Become a Registered Owner 6 What You Need to Have 6 Chapter 3 ISDN Modem Installation 7 Elite 2864I Front Panel 7 The LED Indicators 7 Front Panel Switches 9 Elite 2864I Rear Panel 9 Connecting the Elite 2864I 10 Powering up the Elite 2864I 11 Chapter 4 DTE Interface 13 Operation Modes of DTE Interface 13 Making Different Type of Calls 14 AT Commands and S-Registers 14 Chapter 5 Call Control for 1TR6 ( German National ISDN ) 15 Control of Outgoing Service Indicator 15 Control of Endgerteauswahlziffer (EAZ) 15 Answering a Call 16 Placing a Call 18 Tips for Beginners 18 Chapter 6 Call Control for DSS1 ( European ISDN ) 19 Control of Outgoing Service Indicator 19 Control of ISDN Phone Number and Subaddress 20 Answering a Call 21 Placing a Call 23 Tips for Beginners 23 Chapter 7 Call Control for ISDN in North America 25 Selection of D-Channel Protocol 25 Service Profile Identifier (SPID) 25 Selection of 56Kbps or 64Kbps B-Channel 26 Control of Outgoing Service Indicator 27 Control of ISDN Phone Number and Subaddress 28 Answering a Call 29 Placing a Call 31 Tips for Beginners 32 Chapter 8 Protocols on BChannels 33 Circuit Switched Data (CSD) 33 Determining the Packet Length 34 Placing an X.75 Call 35 Placing a V.120 Call 35 Placing a V.110 Call 36 Placing a PPP Async to Sync Call 37 Packet Switched Data (PSD) 37 Chapter 9 a/b Adapter (Analog Telephone Interface) 38 Configuration of the a/b Adapter 38 Placing a Call 38 Accepting an Incoming Call 39 Charging Information 39 Feature Phone 39 Call Back 39 Broker 40 3-Way Conference (Firmware upgradeable) 40 Chapter 10 V.42bis Data Compression 42 Invoking V.42bis Data Compression 42 Chapter 11 Bundle Connection (128 Kbps) 44 Identifying Your Line Provisioning 44 Making a Bundle Call 44 Bundle Connection with V.42bis Data Compression 45 Chapter 12 Embedded Protocol Analyzer 46 Capturing the Protocol Data 46 Analyzing the Captured Data 47 Chapter 13 User-To-User Information 48 Chapter 14 Data Encryption 49 Data Encryption Standard (DES) 49 Mode of Operation 50 Manual DES Key Generation 50 Key Exchange Using Public Key Algorithm 50 Control of Data Encryption 52 LED Indications of Data Encryption 52 Authentication 52 Chapter 15 Diagnostics 53 Power-on Self-test 53 Main-board's Self-test 53 ISDN Daughter Board's Self-test 53 ISDN Loopback Test 54 Loopback Test (AT&T9) 54 Loopback with Self-test (AT&T10) 54 Appendix A Phone Jack Pin Assignments 55 Appendix B ZyXEL Parallel Port Interface 56 Appendix C Quick Reference Guide for 2864I's AT commands and S-registers 57 Chapter 1 Introduction Congratulations on your procurement of ZyXEL Elite 2864I ISDN modem. It sets new standards in performance and usability for ISDN applications. This universal communication platform supports the most highly integrated services over ISDN lines without sacrificing connectivity to today's more prevailing analog lines. It is backward compatible with PSTN interworked with ISDN and includes most of the fine features found in other ZyXEL fax/modems including V.34. The modem works with most existing communication software using existing ZyXEL AT commands. It also fully supports the current standard ISDN application programming interface, COMMON-ISDN-API versions 1.1a and 2.0. You can run all of the today's commercially available ISDN applications. Upgrading to the ZyXEL ISDN Modem maintains your link to the analog world and prepares you for the digital world of tomorrow - today. The modem firmware handles both D - and B - Channels protocols. For D-Channel, it supports DSS1, 1TR6, National ISDN 1 (NI1) specifications and Northern Telecom DMS-100 and AT&T 5ESS switches, and for B-Channel, X.75 SLP, V.120, V.110, PPP async-to-sync conversion, and Bundle (112 or 128Kbps at packet level). Better yet, the modem is ready for new developments; it employs the flash EPROM that allows you to conveniently download firmware and program the modem with new protocols using a computer. ZyXEL's expertise on data compression has been brought to Elite 2864I to support V.42bis data compression on the B-channels at full speed over ISDN lines. Applied with X.75, V.120, or the Bundle protocols, this translates to up to half a megabit per second transfer rate. (That is almost 4-Megabytes per minute !) The ISDN modem has a full featured a/b adapter (analog port) that recognizes standard DTMF tones and generates a standard ring signal to the connected device. It even generates metering pulses (16KHz or 12KHz depending on the country) according to the Charging Information it receives. If you want, you can use one B-Channel for voice communications while sending data over the ISDN through another. Key Features of the 2864I ISDN Modem Key features of the 2864I ISDN modem are : SYMBOL 110 \f "ZapfDingbats" Full compatibility with both ISDN and remote PSTN via ISDN SYMBOL 110 \f "ZapfDingbats" Two application program interfaces : 1) ZyXEL ISDN AT Commands 2) CAPI 1.1a and 2.0 SYMBOL 110 \f "ZapfDingbats" Multiple signalling protocol compatibility with following network switches: DSS1, 1TR6, NI-1, AT&T 5ESS, Northern Telecom DMS 100. SYMBOL 110 \f "ZapfDingbats" Supports X.75, V.110, V.120, and Bundle (128Kbps) B-Channel protocols SYMBOL 110 \f "ZapfDingbats" Supports SLIP to sync HDLC conversion and PPP async to sync HDLC conversion for LAN-to-LAN interconnections and Internet access. SYMBOL 110 \f "ZapfDingbats" Easy upgrade path using flash EPROM memory SYMBOL 110 \f "ZapfDingbats" V.42bis data compression over the X.75, V.120, PPP, and Bundle protocols SYMBOL 110 \f "ZapfDingbats" High speed serial/parallel DTE interface. (External model only) SYMBOL 110 \f "ZapfDingbats" Fullfeatured a/b adapter (analog telephone port). (External model only) SYMBOL 110 \f "ZapfDingbats" Digitized voice capability (2, 3, and 4-bit ADPCM). SYMBOL 110 \f "ZapfDingbats" Optional 8 MByte DRAM for on-board fax reception SYMBOL 110 \f "ZapfDingbats" Cryptographic data protection SYMBOL 110 \f "ZapfDingbats" Embedded protocol analyzer with color (ANSI) display SYMBOL 110 \f "ZapfDingbats" S/T interface (2864I) or U interface (2864IU) for North America ISDN. Family of the ZyXEL ISDN Modems The following table is a list of the family of the ZyXEL ISDN modems. Supreme 2864I External Model Elite 2864I External Model Internal card 2864IB PC Add-on Card  Fax/Modem SYMBOL 171 \f "Wingdings" SYMBOL 171 \f "Wingdings" SYMBOL 171 \f "Wingdings"  A/B Adapter SYMBOL 171 \f "Wingdings" SYMBOL 171 \f "Wingdings"   Serial Port SYMBOL 171 \f "Wingdings" SYMBOL 171 \f "Wingdings"   Parallel Port SYMBOL 171 \f "Wingdings" SYMBOL 171 \f "Wingdings"   Internal Card   SYMBOL 171 \f "Wingdings"  Data Encryption SYMBOL 171 \f "Wingdings" SYMBOL 171 \f "Wingdings" SYMBOL 171 \f "Wingdings"  LCD Display SYMBOL 171 \f "Wingdings"  Optional  LED Display  SYMBOL 171 \f "Wingdings"   Power Supply SYMBOL 171 \f "Wingdings" SYMBOL 171 \f "Wingdings"   Flash EPROM 1 MByte 1 MByte 1 MByte  Static RAM 256 KByte 256 KByte 256 KByte  NVRAM 2 KByte 2 KByte 2 KByte  8 MB DRAM Optional Optional    Most of the features of these three models are the same. Many of the features or examples are illustrated with the Elite model in this manual and the same will apply to the other models. U-Interface Option For the north America ISDN, ZyXEL provides an option of 2B1Q U-interface which is connected directly from the network to the ZyXEL ISDN modem. ISDN network termination is designed into the Supreme 2864IU, Elite 2864IU, and Internal Card 2864IBU, eliminating the need and expense of an NT1. Chapter 2 Getting Started A user can either buy a standard Elite 2864I or upgrade his or her Elite 2864 modem to Elite 2864I by purchasing an ISDN upgrade kit. Packing List of 2864I ISDN Modem Before you proceed further, please check to see if you have all the necessary materials from the shipping package and make sure nothing is missing. The complete package should include: SYMBOL 110 \f "Wingdings" one (1) 2864I series universal ISDN modem SYMBOL 110 \f "Wingdings" one (1) power adapter pack (External model only) SYMBOL 110 \f "Wingdings" one (1) RJ11 telephone cable SYMBOL 110 \f "Wingdings" one (1) RJ45 ISDN telephone cable SYMBOL 110 \f "Wingdings" one (1) shielded RS-232 cable (External model only) SYMBOL 110 \f "Wingdings" one (1) 2864 series modem user's manual SYMBOL 110 \f "Wingdings" one (1) 2864I ISDN modem user's manual (This manual) SYMBOL 110 \f "Wingdings" one (1) 3.5" floppy disk which contains 1) the ZFAX, 2) the Windows driver and fossil driver for the parallel port, and 3) the CAPI drivers. SYMBOL 110 \f "Wingdings" one (1) warranty/registration card SYMBOL 110 \f "Wingdings" one (1) Quick Reference guide Contact your dealer or the store from where you bought the ISDN modem if anything is missing. After you unpack the ISDN modem, please check for shipping damages. if you find any damage, contact the shipping agency immediately. Retain the shipping and cushioning materials for future storage or shipping needs. Please direct any additional questions about damaged or missing materials to your dealer or distributor, or to the factory address listed on the warranty card. Upgrading the 2864I with New Firmware The 2864I ISDN modem is ready for new developments; it employs the flash EPROM that allows you to conveniently download firmware and program the modem with new features and enhanced functions using a personal computer or workstation. Watch for new firmware release information and get a free copy of the latest version from your agent's or distributor's BBS. The firmware is distributed in a file "E2864Id.vvv". Where the extension vvv denotes the version of this firmware. The modifier d in the filename has the following definitions : G German national ISDN (1TR6) E European ISDN (DSS1), also used in most other countries including Asian countries. A American ISDN(AT&T 5ESS, Northern Telecom DMS-100, or National ISDN-1, the active D-channel protocol can be chosen by an AT command) The first letter E means firmware for Elite model. A letter S will mean firmware for Supreme model and B for internal card. Note : The American firmware version supports both the S/T interface and U interface models. During power-on test, it checks the hardware configuration and follows the initialization procedures of the specific interface. Turn on your PC and Elite 2864I ISDN modem and then execute any communication program that supports X-modem protocol. Key-in the command ATUPX and wait for the following prompt characters : Start programming, please upload..... ........ Once the prompt appears, use the X-modem protocol to upload the file "E2864Id.vvv" to the Elite 2864I which will update its flash EPROM with the new firmware. If the new firmware is uploaded successfully, the ISDN modem will restart automatically. If, somehow, the upload fails, the machine may get stuck since the essential part of the firmware has been erased. In this case, please turn off the ISDN modem and then press the O/A button while turning on the ISDN modem, then release the button after a few seconds. A kernel program, which is responsible for the update process, will take control of the ISDN modem. It accepts a limited set of AT commands including the ATUPX command. Upgrading from the Elite 2864 to the Elite 2864I If you already got an Elite 2864 modem and want to upgrade it to ISDN, you only need to buy an upgrade kit which includes the following items: SYMBOL 110 \f "Wingdings" one (1) 2864I ISDN modem user's manual SYMBOL 110 \f "Wingdings" one (1) Elite 2864I front panel plate SYMBOL 110 \f "Wingdings" one (1) Elite 2864I rear panel SYMBOL 110 \f "Wingdings" one (1) ISDN daughter board SYMBOL 110 \f "Wingdings" one (1) RJ45 ISDN telephone cable SYMBOL 110 \f "Wingdings" one (1) 3.5" floppy disk which contains the firmware of Elite 2864I and the CAPI drivers. SYMBOL 110 \f "Wingdings" one (1) warranty/registration card SYMBOL 110 \f "Wingdings" one (1) Quick Reference card The upgrade procedure is as follows : 1) Upgrade the Elite 2864I firmware Use the X-modem protocol to upload the file "E2864Id.vvv" to the Elite 2864, which will upgrade its Flash EPROM with the Elite 2864I firmware. The definitions of the letters in the file name are described in the previous paragraph. 2) Remove the Elite 2864 modem's DAA daughter board and rear panel Switch off the Elite 2864 and remove everything that are connected to the modem (including cable, power cord, and telephone lines). Open the upper cover of the modem and remove the rear panel. Now you can see the DAA daughter board (with two RJ11 jacks on it) piggy-backed on the upper side of the main board. Use a screw driver to unscrew the screws on the daughter board and remove the daughter board from the main board by pulling upright gently. 3) Plug in the ISDN daughter board and put back the new rear panel Plug in the ISDN daughter board to the main board and make sure the connectors are properly aligned and closely contacted. Fasten the screws to fix the daughter board. Insert the new rear panel and put the upper cover back on the modem. 4) Replace the front panel plate The LED indicators have new definitions in the Elite 2864I thus the front panel plate must be changed. Tear off the plastic front panel plate of the Elite 2864. Remove the rear paste cover of the Elite 2864I LED label plate and place it onto the front panel. How to Become a Registered Owner Fill in the registration card and mail it to the address found on the reverse side of the card. Registered owners will receive future product and update information. You don't have to register to receive warranty service. A dated invoice as proof of purchase along with the warranty card are sufficient. What You Need to Have You need the following equipment to operate your Elite 2864I ISDN modem: SYMBOL 110 \f "Wingdings" Computer or terminal with communication software. SYMBOL 110 \f "Wingdings" An ISDN Basic Rate Interface (S0) from your telephone company. Chapter 3 ISDN Modem Installation This chapter describes the panel function and serves as an installation guide for the 2864I ISDN modem. Elite 2864I Front Panel  Fig. 3-1. The Elite 2864I front panel. SYMBOL 183 \f "Symbol" \s 10 \hThe LED Indicators PWR Power on indicator; lights up when the Elite 2864I's power is turned ON. MDM Modem mode indicator; lights up when the Elite 2864I operates in modem mode. FAX Fax mode indicator; lights up when the Elite 2864I is in fax transmission or receiving mode VO Voice mode indicator; lights up when the Elite 2864I operates in voice mode. SP Serial port active indicator; lights up when the Elite 2864I is using the serial port for DTE communication. PRP Printer parallel port active indicator; lights up when the Elite 2864I is using the parallel port to drive a printer for fax printing. PCP PC parallel port active indicator; lights up when the Elite 2864I is using the parallel port to communicate with a PC's bidirectional parallel port. B1 B1 channel connection indicator; lights up when B1 channel is established. Single blinking LED indicates data transmission is protected by Data Encryption Standard (DES). Triple blinking LED indicates data is protected by triple DES. B2 B2 channel connection indicator; lights up when B2 channel is established. Single blinking LED indicates data transmission is protected by Data Encryption Standard (DES). Triple blinking LED indicates data is protected by triple DES. AA Auto-answer indicator; lights up when the Elite 2864I is in the Auto Answer mode; flashes when it rings. CD Carrier detect indicator; lights up when a valid carrier is detected present on the line for fax/modem operation.For ISDN data call, the LED lights up when a B-channel protocol has been established and is ready for data transmission. DTR/POL DTE mode : Data terminal ready indicator, lights up when the DTE or Computer indicates that it is ready for communication by raising the corresponding RS232 signal. Printer mode : Printer on line indicator; it indicates the signal status of Select from printer. It lights up when printer is selected and is available for data transfer. DSR/PSL DTE mode : Data set ready indicator; lights up when the Elite 2864I is ready for communication. Printer mode : Printer select signal; it indicates the signal status of "-Select-In" from the Elite 2864I to printer. It lights up when printer is enabled to input data. RTS/PPE DTE mode : Request to send indicator; it indicates the signal status of RS232 signal RTS from DTE. RTS is used for hardware flow control in the case of asynchronous data transmission. Printer mode : Printer paper end indicator, lights up when printer runs out of paper. It indicates the signal status of PE from printer. CTS/PER DTE mode : Clear to send indicator; lights up when the Elite 2864I can accept data for transmission. Printer mode : Printer error indicator; lights up when an error condition exists in the printer, e.g., paper empty or not on-line. It indicates the signal status of -Error from printer. TXD Transmit data indicator; flashes when the DTE/Computer is transmitting data to the Elite 2864I. RXD Receive data indicator, lights up when the DTE/Computer is receiving data from the Elite 2864I. HLD Call held indicator; lights up when the telephone connected to the a/b adapter is in Hold condition. LNK Physical layer (layer 1) active indicator; lights up when Layer 1 of the S0 interface is active; flashes when the data link layer of D-channel is in multiple frame mode. LNK is also used as a self-test indicator for the internal fax/modem initialization. In this case, the Elite 2864I's indicator LNK behaves the same way as the Elite 2864's indicator SQ. Please refer to the 2864 Series Modem User's Manual for the role of LED indicator SQ in the modem's self-test and diagnostics operations. OH Hook status of the a/b adapter, lights up when the telephone handset is picked up (off-hook); flashes when the analog telephone set connected to the a/b adapter is used for local voice mode operation (play back or record). ORG Modem Originate mode indicator, lights up when the modem is in originate mode otherwise it is in answer mode. SYMBOL 183 \f "Symbol" \s 10 \hFront Panel Switches D/V A toggle switch that 1) when the OH LED is on, switches the B-channel from the a/b adapter to internal fax/modem for data communication. The fax/modem goes off-hook and starts to handshake according to the ORG LED status, then the OH LED is turned off. 2) when the OH LED is off and the MDM or FAX LED is on, switches the fax/modem off-line (on-hook). 3) when all the OH, MDM, and FAX LEDs are off, switches the a/b adapter to local voice mode so that you can record and play back digitized voice through an analog telephone set connected to the A/B adapter. The OH LED flashes in this mode. 4) when the OH LED flashes, restores the a/b adapter from local voice mode to telephone mode, then the OH LED is turned off. O/A A toggle switch that determines the fax/modem is in originate mode or answer mode when the fax/modem is made go off-hook by pushing the D/V switch. The ORG LED indicator will be toggled on and off by this switch.  Figure 3-2. The Elite 2864I rear panel Elite 2864I Rear Panel Fig. 3-2 shows the Elite 2864I rear panel. The following explains the connectors on the rear panel: POWER JACK Input terminal for power adapter. There is no power switch on the Elite 2864I, the power switch on the power adapter will turn off the power adapter and shut off the power to modem. Always turn off the power adapter before connecting or disconnecting to power jack. PARALLEL Parallel port DB25 male connector for connection to a PC's parallel port or a printer's Centronics compatible port. SERIAL Serial port DB25 female connector for connection to the serial port of a DTE (computer/terminal). LINE ISDN RJ45 terminal jack. For the Elite 2864I, this is for connection to an S0 (S/T) interface; while for the Elite 2864IU, U interface. PHONE a/b adapter RJ11 terminal jack, for connection to an analog telephone equipment. The signal-pin assignment of the RJ45 and RJ11 phone jacks are listed in Appendix A. Connecting the Elite 2864I Connect the ISDN modem according to the rear panel label as follows, turn off the power on computer and modem before making connections. Pay special attention to parallel port connection.  Fig. 3-3: ISDN modem connections SYMBOL 183 \f "Symbol" \s 10 \hPower Connection Connect one end of the power cord to the power adapter and plug the other end to wall electrical outlet. Connect the power plug from the adapter to the power jack. Do not use any power adapter other than the one supplied with this modem. Using any other power adapter may cause serious damage to the modem and void warranty. Warning:Always turn off the power switch on the power adapter before making power connection. Never plug or unplug modem's power jack with power adapter turned on, it may damage the ISDN modem. SYMBOL 183 \f "Symbol" \s 10 \hComputer and Printer Connection The modem has both a parallel port and a serial port connector. You can connect the serial port connector to your computer's serial port or connect the parallel port connector to your PC's bi-directional parallel port or you can connect both ports to your PC's serial port and parallel port. You can also connect the serial port to your PC's serial port but the parallel port to a laser printer. If you have the modem set up for auto fax receive and print,, you only need a parallel port connection to a printer. Though you can have both ports connected, only one port is active at any one time. If the parallel port is active, it is either in PC communication mode (PCP) or printer driving mode (PRP). Warning:Never try to connect a parallel port to a serial port, it may damage electronics on both ports. They use different voltage levels. Don't have the parallel port connected to an active device (powered on PC or printer) when you turn on the power to the ISDN modem. Turn off the active device before turning on modem or make parallel port connection after turning on modem. A 25-pin male to female shielded RS-232 cable can be used to connect the modem's serial port (female DB25) to a computer's regular RS232 serial port connector (male DB25). If you have an AT type 9-pin serial port connector on your PC, a 9-pin female to 25-pin male cable adapter is needed. If you have other type of serial port connector, like Apple Macintosh's, you need a special cable adapter for it. By turning around the two ends of the 25-pin RS232 cable, it is also good for connecting the modem's parallel port (male DB25) to a PC's parallel port (female DB25). The normal PC printer cable will connect the female DB25 PC parallel port connector to a printer's Centronics 36-pin D-shell connector. It will need a female DB25 to female DB25 gender converter together with a normal PC printer cable to connect the modem's male DB25 parallel port connector to printer. SYMBOL 183 \f "Symbol" \s 10 \hPhone Line Connection Use the telephone cable supplied to connect modem's LINE jack to the ISDN telephone line wall jack. Note : For S/T interface, improper terminating resistor setting may cause the ISDN modem malfunction. A rule of thumb is that both the NT (Network Terminator) and the TE (Termianl Equipment) that has the longest cable connectted to the NT are recommended to install the terminating resistors. The factory default setting of the terminating resistors of the 2864I is DISCONNECTED, which most likely works fine with your ISDN telephone line. farest apart from the NT must have proper impedence termination You can also connect a telephone set to the modem's PHONE jack in case you need the telephone for voice communication. It is not necessary for modem's data, fax, and voice mail communication. The telephone set can also be used to record or playback voice messages. Powering up the Elite 2864I Turn on the power switch on the power adapter to power up the ISDN modem, it will perform a series of diagnostic tests while the LEDs B1, B2, and AA are blinking. For a more detailed description of these tests, please refer to Chapter 15 Diagnostics. If all self tests are OK, the LEDs B1, B2, and AA will be in normal state and the ISDN modem is ready for use. Chapter 4 DTE Interface To meet the increasing demand of data bandwidth between DTE (Data Terminal Equipment) and DCE (Data Communication Equipment), ZyXEL ISDN adopts several kinds of advanced DTE interfaces : SYMBOL 110 \f "Wingdings" RS-232 with speed up to 460.8 Kbps. (Auto-baud for asynchronous operation) SYMBOL 110 \f "Wingdings" ZyXEL Parallel Port Interface (ZyPPI). This is a special interface connected to PC's printer port. ZyXEL has developed two drivers for ZyPPI : 1. Fossil driver under DOS. 2. COM port device driver for Windows. SYMBOL 110 \f "Wingdings" Internal Serial Port. This is for internal card models (PC add-on cards) only. A special UART emulator is built in the card. From the PC's point of view, this is an enhanced 16550 compatible communication port, but data will never be overrun or get lost no matter how slow the PC serves the COM port. Please refer to Chapter 4 of the 2864 series modem user's manual for more on modem's parallel port and serial port operations. Operation Modes of DTE Interface There are two operation modes for the DTE interface : SYMBOL 110 \f "Wingdings" Simplex mode is used for conventional AT command operation. SYMBOL 110 \f "Wingdings" Multiplex mode is used as an internal interface for ZyXEL CAPI drivers. In the simplex mode, the way you operate the ISDN modem is similar to the way you operate an ordinary modem. The DTE interface will be either in the command state or in the data state, and only one data connection session is available at any one time. The simplex mode is designed for the AT command users. To invoke various functions of the 2864I, e.g. fax/modem, ISDN data call, or the a/b adapter, the users only need to use the corresponding AT commands. The guides and descriptions in the rest of this manual, if not otherwise specified, are applicable to the simplex mode, which is also the power-on default mode of the DTE interface. The multiplex mode is designed for ZyXEL CAPI drivers. It can also be used by a third party to develop various drivers on different platforms for public domain or for commercial purpose. Conceptually, there are four DTE channels in the multiplex mode : DTE channel 0 for internal fax/modem DTE channel 1 for ISDN data DTE channel 2 for ISDN data DTE channel 3 for the a/b adapter In the multiplex mode, all the commands and data are packetized. Each packet has its own destination address through which all the DTE channels can be accessed individually in way of multiplexing. Since it is not intended for the general users, the specification and manual of the multiplex mode is available only on request. Interested parties are welcome to contact their local ZyXEL distributor for more information. Making Different Type of Calls By employing different AT commands and S-registers, the 2864I can be configured to achieve various functions. Three dialing commands that enable a user to place different types of calls: ATDMs dial for the internal fax/modem ATDIs dial for ISDN data connection ATDBs dial for the a/b adapter where s is the phone number to be dialed. The type of an incoming call can be automatically identified according to the type of bearer services and addresses of the incoming SETUP message. The conventional dialing commands: ATD, ATDT and ATDP, used by many existing communication software, can be mapped onto one of the new dialing commands according to the AT&O setting as follows: AT&O0 ATD, ATDT and ATDP are the same as ATDM AT&O2 ATD, ATDT and ATDP are the same as ATDI AT&O3 ATD, ATDT and ATDP are the same as ATDB The factory default is AT&O0. AT Commands and S-Registers The AT commands and S registers of the Elite 2864I are summarized in Appendix C and can also be browsed by using the on-line help command AT$, AT*$, AT&$, and ATS$. They are extensions of ZyXEL modem's AT commands and S-registers. For operation of the four user profiles as well as the current settings, please refer to Chapter 7 of the 2864 series modem user's manual. Chapter 5 Call Control for 1TR6 ( German National ISDN ) The Service Indicator as well as the Destination Address information elements are essential to initiate a 1TR6 ISDN call. The Service Indicator determines what kind of bearer services is desired. The Destination Address provides necessary information for the telephone company Central Office (CO) to direct the call to the remote party. Control of Outgoing Service Indicator The outgoing Service Indicator will be assigned when you configure the B-channel protocols using the command ATBnn. (See Chapter 8 for a more detailed description.) Since there are a number of combinations of voice or voice-band-data services on the internal fax/modem or the a/b adapter, users may want to control the outgoing Service Indicator themselves for some specific applications. The following table is recommended to configure S104/S107 (Service Indicator) and S108/S111 (Additional Information Octet) according to the terminal types : Service Indicator S104 : for the fax/modem S107 : for the a/b adapter Addi. S. I. S108 : for the fax/modem S111 : for the a/b adapter  Telephone 1 (Fernsprechen) 1 (3.1 KHz)  Modem 2 (a/b - dienste) 3 (Daten ber Modem) or 4 (Btx ber Modem)  G3 Fax 3 (a/b - dienste) 2 (Fax Gruppe 3)   Control of Endgerteauswahlziffer (EAZ) EAZ (or terminal selection code) is the last digit of an ISDN phone number in 1TR6. Usually EAZ=0 means a global call, that is, any terminal on the S0 interface, which is service-compatible with the incoming call, can answer the call. Other values of EAZ (1,2,....,9) provides the possibility for assigning multiple ISDN numbers to a single ISDN BRI line, it allows a calling user to select, via the public network, one or more distinct terminals on a single BRI line. Since the Elite 2864I is a highly integrated multi-function ISDN modem, it can be imagined as a black box that contains multiple distinct terminals. Each of these "internal terminals" can be assigned one EAZ using the following command: AT&ZIn = EAZ , n=0-7 ; EAZ=1-9 AT&ZI0 = EAZ assign the EAZ for X.75; AT&ZI1 = EAZ assign the EAZ for V.110; AT&ZI2 = EAZ assign the EAZ for V.120; AT&ZI3 = EAZ assign the EAZ for PPP async to sync HDLC; AT&ZI4 = EAZ assign the EAZ for SLIP to sync HDLC; AT&ZI6 = EAZ assign the EAZ for internal fax/modem; AT&ZI7 = EAZ assign the EAZ for the a/b adapter. AT&ZI? can be used to display the EAZ numbers assigned by the AT&ZIn=EAZ commands. The EAZ (last digit) of the destination address in an incoming SETUP message will be checked with each protocol's EAZ. If there is a match and the service indicated is compatible with this protocol, the call will be accepted using the protocol. Note : The EAZs must be assigned precisely in order to accept calls accordingly. The default EAZ of each protocol is as follows : &ZI0=3 for X.75; &ZI1=2 for V.110; &ZI2=5 for V.120; &ZI3=6 for PPP async to sync HDLC; &ZI4=7 for SLIP to sync HDLC; &ZI6=1 for internal fax/modem; &ZI7=4 for the a/b adapter. The suffix digit to an ISDN phone number in a dial out command will be used as the origination EAZ (in the Origination Address W-element) in the SETUP message sent to the destination. If this suffix digit is omitted, the switch will assume the EAZ as 0. Answering a Call The incoming call will first be identified to be either an ISDN data call or a voice call (including voice-band-data). ISDN data calls will be assigned to the digital communication processing portion of the Elite 2864I. Voice calls or voice-band-data calls will be assigned to the internal fax/modem or the a/b adapter. If an incoming SETUP message is offered with addressing information (i.e. the destination address W-element), this address will be compared with the EAZ numbers assigned by the AT&ZIn=s commands. The call will be accepted using the specific protocol if the assigned number of this protocol matches with the received address. For a voice or voice-band-data call, if the destination address matches with the EAZ of the internal fax/modem or the a/b adapter, the call will be delivered to the proper destination. But sometimes there exists ambiguity of address matching. This may happen if the EAZ of the incoming call specifies a global call (EAZ=0) or no EAZ presents in the incoming SETUP message (treated as EAZ=0). In this case, users may wish to set the priority of answering a call by the built-in fax/modem or the a/b adapter (for external devices). The AT&Ln command sets the address ambiguity resolution flag : AT&L0 The a/b adapter has the higher priority to answer a voice or voice-band-data call; if the a/b adapter is busy, the call will be forwarded to the internal fax/modem. AT&L1 The built-in fax/modem has the higher priority to answer a voice-band call; if the internal fax/modem is busy, the call will be forwarded to the a/b adapter. For an incoming ISDN data call, if the Elite 2864I can exclusively determine the protocol to be used by means of the information conveyed by the SETUP message (i.e. the Service Indication and the Additional Information W-elements), the indicated protocol will be used. Otherwise, the destination address will be compared with the EAZ of various ISDN B-channel protocols. If there is a match, the protocol corresponds to the matched MSN will be used. If the address-matching process is unable to tell which protocol to be used, a default protocol for ISDN data connection will be used to answer the call. The default protocol for answering an ISDN data call is the same as the outgoing service protocol specified by the last ATBnn command. (See Chapter 8 for a more detailed description.) Data calls, digital or analog, are accepted in the same way as in a typical modem. When alerting, the 2864I will send RING message to the DTE with format as follows: RING [FM:[Prefix]Origination-Address] [TO:Destination-Address] RING RING ...... The display of address information between the first RING and the second RING can be disabled by setting ATS84.4=1 . The term [Prefix] is a predefined number string to be added in front of the Origination-address before indicating it to the DTE. This is useful for some automatic dial-back-up systems. The number string can be assigned as follows: ATCI When and only when the type-of-number denotes an international number will this "Prefix" be added to the Origination-address before indicating it to the DTE. ATCI<> Disables the international number prefix-adding function.(Default) ATCN When and only when the type-of-number denotes a national number will this "Prefix" be added to the Origination-address before indicating it to the DTE. ATCN<> Disable the national number prefix-adding function.(Default) Placing a Call To initiate a call, configure the channel according to the bearer service (or protocol) you want to use. AT&Nn or AT+FCLASS=n for internal fax/modem ATBnn for ISDN data call Please refer to Chapter 8 for descriptions of the ATBnn command. The ATDx command is used for dialing: ATDx[Yn][Nn]destination_address where x specifies the type of call: x = M (internal fax/modem), I (ISDN data), or B (the a/b adapter) Yn specifies the type of address: Y0 unknown (default if Yn is omitted) Y1 international number Y2 national number Nn is the identifier of numbering/addressing plan: N0 unknown (default if Nn is omitted) N1 ISDN numbering plan (Rec. E.164) The destination_address is the ISDN phone number of the called party. The last digit of this number is the EAZ. Use ATDL to redial the last dialed ISDN phone number. Tips for Beginners For those users who are new to ISDN data communications or unfamiliar with the use of the 2864I, they are recommended to use the embedded protocol analyzer of the 2864I (see chapter 12). It gives you a comprehensive understanding of the ISDN call control and reveals the consequences of your activities upon the 2864I. Chapter 6 Call Control for DSS1 ( European ISDN ) The Bearer-Capability as well as the Called-Party-Number information elements are essential to initiate an DSS1 ISDN call. The Bearer Capability information element indicates what kind of bearer services is desired. The Called Party Number provides necessary information for the telephone company Central Office (CO) to direct the call to the remote party. Other optional information elements which are pertinent to call control include High-Layer-Compatibility, Low-Layer-Compatibility, Called-Party-Subaddress, Calling-Party-Number, and Calling-Party-Subaddress. Control of Outgoing Service Indicator The purpose of the Bearer-Capability information element is to indicate the requested bearer service provided by the network. It may also be used for compatibility checking in the addressed entity. The purpose of the High-Layer-Compatibility information element as well as the Low-Layer-Compatibility information element is to provide a means which should be used for compatibility check by the called party. They are transferred transparently by the ISDN network between the call originating entity (e.g. the calling user) and the addressed entity. The outgoing High-Layer-Compatibility can be controlled by setting S108+n. Where n = 0 (S108 for internal fax/modem), 2 (S110 for ISDN data calls), or 3 (S111 for the a/b adapter). Defined values of S108+n are as follows: S108+n=0 No High-Layer-Compatibility information element will be sent S108+n=1 Telephony S108+n=4 Facsimile Group 2/3 S108+n=40 Teletex service (Rec. F.220) S108+n=49 Teletex service (Rec. F.200) S108+n=50 International interworking for video services (Rec. F.300 and T.110) S108+n=53 Telex service (Rec. F.60) S108+n=56 Message Handling Systems (MHS) (Rec. X.400 series) S108+n=65 OSI application (Rec. X.200 series) The default value of S108+n for all valid n is 0. Bearer-Capability and Low-Layer-Compatibility information elements will be determined when you configure the B-channel protocols by using the command ATBnn. (See Chapter 8 for a more detailed description.) The outgoing Low-Layer-Compatibility information element can be turned on or off as follows: S80.n=0 Disable outgoing Low-Layer-Compatibility (default) S80.n=1 Enable outgoing Low-Layer-Compatibility where n = 4 (S80.4 for internal fax/modem), 6 (S80.6 for ISDN data calls), or 7 (S80.7 for the a/b adapter). Control of ISDN Phone Number and Subaddress The purpose of the Calling-Party-Number information element is to identify the origin of a call, while the Called-Party-Number information element is to identify the destination of a call. The purpose of the Calling-Party-Subaddress information element is to identify the subaddress associated with the origin of a call. The purpose of the Called-Party-Subaddress information element is to identify the subaddress of the called party of a call. Each type of outgoing call of the 2864I can be assigned with one number-subaddress pair by using the command: AT&ZOx = s where x = M (for internal fax/modem), I (for ISDN data calls) ,or B (for the a/b adapter). The number-subaddress-string s is defined as follows: s=[[Yn][Nn]own-number or A][/[[Zn]own-subaddress]/] where Yn specifies the type of number: Y0 unknown (default if Yn is omitted) Y1 international number Y2 national number Y3 network specific number Y4 subscriber number Nn is the identifier of numbering plan: N0 unknown (default if Nn is omitted) N1 ISDN numbering plan (Rec. E.164) N3 data numbering plan (Rec. X.121) N4 telex numbering plan (Rec. F.69) N8 national standard numbering plan N9 private numbering plan Zn specifies the type of a subaddress: Z0 NSAP (Rec. X.213) with AFI=0x50, IA5 characters (default if Zn is omitted) Z2 user specified, IA5 characters Modifier A is used to remove the assignment of own number. AT&ZOx=// will remove the assignment of the subaddress. The number and subaddress assigned by AT&ZOx=s, if any, will be used for Calling-Party-Number and Calling-Party-Subaddress information elements respectively while dialing. The default settings of own number and subaddress of all the types of call are UNASSIGNED, it means the SETUP message sent by the Elite 2864I contains neither Calling-Party-Number nor Calling-Party-Subaddress information elements. The command AT&ZO? can be used to browse the current settings of the own numbers and subaddresses. Answering a Call The incoming call will first be identified to be either an ISDN data call or a voice call (including the voice-band-data). ISDN data calls will be assigned to the digital communication processing portion of the 2864I. Voice calls or voice-band-data calls will be assigned to the internal fax/modem or the a/b adapter. The Multiple Subscriber Number (MSN) supplementary service provides the possibility for assigning multiple ISDN numbers to a single ISDN BRI line, it allows a calling user to select, via the public network, one or more distinct terminals on a BRI line. Since the 2864I is a highly integrated multi-function ISDN modem, it can be imagined as a black box that contains multiple distinct terminals. Each of these "internal terminals" can be assigned one ISDN number using the following command: AT&ZIn=s, n=0-7; s is the MSN number AT&ZI0=s assign the MSN for X.75; AT&ZI1=s assign the MSN for V.110; AT&ZI2=s assign the MSN for V.120; AT&ZI3=s assign the MSN for PPP async to sync HDLC; AT&ZI4=s assign the MSN for SLIP to sync HDLC; AT&ZI6=s assign the MSN for internal fax/modem; AT&ZI7=s assign the MSN for the a/b adapter. AT&ZI? can be used to display the MSN numbers assigned by the AT&ZIn=s commands. The factory default for these numbers are UNASSIGNED. If an incoming SETUP message is offered with addressing information (i.e. the appropriate part of the called party number), this address will be compared with the MSN numbers assigned by the AT&ZIn=s commands. The call will be accepted using the specific protocol if the assigned number of this protocol matches with the received called party number. Note : Two phone number strings are said to be matched if their least significant "n" digit(s) are identical, where "n" is the number of digits of the shorter string. Usually one digit is enough to distinguish the various protocols. Called-Party-Subaddress information of the incoming SETUP message is not used by the 2864I to select the protocols or services. It just indicates the subaddress (if any) to the DTE. For a voice or voice-band-data call, if the called party number matches with the MSN of the internal fax/modem or the a/b adapter, the call will be delivered to the proper destination. But sometimes there exists ambiguity of address matching. This may happen if the MSN numbers of the various protocols are either unassigned or not matched or the address information is absent in the incoming SETUP message. In this case, users may wish to set the priority of answering a call by the built-in fax/modem or the a/b adapter (for external devices). The AT&Ln command sets the address ambiguity resolution flag : AT&L0 The a/b adapter has the higher priority to answer a voice or voice-band-data call; if the a/b adapter is busy, the call will be forwarded to the internal fax/modem. AT&L1 The built-in fax/modem has the higher priority to answer a voice-band call; if the internal fax/modem is busy, the call will be forwarded to the a/b adapter. For an ISDN data call, if the 2864I can exclusively determine the protocol to be used by means of the information conveyed by the SETUP message (i.e. the Bearer-Capability, Low-Layer-Compatibility, or High-Layer-Compatibility information elements), the indicated protocol will be used. Otherwise, the called party number will be compared with the MSN of various ISDN B-channel protocols. If there is a match, the protocol corresponds to the matched MSN will be used. If the address-matching process is, again, unable to tell which protocol to be used, a default protocol for ISDN data connection will be used to answer the call. The default protocol for answering an ISDN data call is the same as the outgoing service protocol selected by the last ATBnn command. (See Chapter 8 for a more detailed description.) Data calls, digital or analog, are accepted in the same way as in a typical modem. When alerting, the 2864I will send the first RING message to the DTE with a format as follows: RING [FM:[[Prefix]Calling-Party-Number][/Subaddress/]] [TO:[Called-Party-Number][/Subaddress/]] RING RING ...... The display of address information between the first RING and the second RING can be disabled by setting ATS84.4=1 . The term [Prefix] is a predefined number string to be added in front of the Calling-party-number before indicating it to the DTE. This is useful for some automatic dial-back-up systems. The number string can be assigned as follows: ATCI When and only when the type-of-number denotes an international number will this "Prefix" be added to the Calling-party-number before indicating it to the DTE. ATCI<> Disables the international number prefix-adding function. (Default) ATCN When and only when the type-of-number denotes a national number will this "Prefix" be added to the Calling-party-number before indicating it to the DTE. ATCN<> Disable the national number prefix-adding function. (Default) Placing a Call To initiate a call, configure the 2864I according to the bearer service (or protocol) you want to use. AT&Nn or AT+FCLASS=n for internal fax/modem ATBnn for ISDN data call Pleaserefer to Chapter 8 for descriptions of the ATBnn command. The ATDx command is used for dialing: ATDx[Yn][Nn]called _party_number[/[Zn]called-party-subaddress/] where x = M (for internal fax/modem), I (for ISDN data calls), or B (for the a/b adapter). Yn specifies the type of number: Y0 unknown (default if Yn is omitted) Y1 international number Y2 national number Y3 network specific number Y4 subscriber number Nn is the identifier of numbering plan: N0 unknown (default if Nn is omitted) N1 ISDN numbering plan (Rec. E.164) N3 data numbering plan (Rec. X.121) N4 telex numbering plan (Rec. F.69) N8 national standard numbering plan N9 private numbering plan and Zn specifies the type of the subaddress: Z0 NSAP (Rec. X.213) with AFI=0x50, IA5 characters (default if Zn is omitted) Z2 user specified, IA5 characters The called_party_number or an appropriate part of it will be sent to the addressed entity. The called_party_subaddress will be transferred transparently by the ISDN network to the destination. Use ATDL to redial the last dialed telephone number (and/or subaddress). Tips for Beginners For those users who are new to ISDN data communications or are unfamiliar with the use of the 2864I, they are recommended to use the embedded protocol analyzer of the 2864I (see chapter 12). It gives you a comprehensive understanding of the ISDN call control and reveals the consequences of your activities upon the 2864I. Chapter 7 Call Control for ISDN in North America Selection of D-Channel Protocol The 2864I can be configured for either a Northern Telecom DMS-100, AT&T 5ESS CO switch, or a switch conforming to the National ISDN-1 standard (usually an AT&T 5ESS, NTI DMS-100, or Siemens EWSD). The AT&T custom ISDN can be further classified to be either a point-to-point or a point-to-multipoint configuration. The D-channel protocol can be chosen as follows: ATPn n = 0, Northern Telecom (Default) n = 1, National ISDN-1 n = 2, Reserved for National ISDN-2 n = 3, Reserved for National ISDN-3 n = 4, AT&T point-to-point n = 5, AT&T point-to-multipoint All other values are reserved. The command AT&V can be used to identify the current D-channel protocol. Service Profile Identifier (SPID) In North America, the ISDN switches use Service Profile Identifier (SPID) to represent the network services to which the 2864I has subscribed. Each SPID corresponds to one Terminal Endpoint Identifier (TEI). Different switch may provide different rule for the SPID number. The following table shows the general rules for SPID coding. Switches Protocols SPID no. SPID TYPE  AT&T 5ESS AT&T point-to-point AT&T point-to-multipoint NI1 0 1 1 Not applicable 01+DN+0 01+DN+0+TID  Northern Telecom DMS 100 NTI Custom NI1 2 1 Area Code+DN+(Suffix) Area Code+DN+(Suffix)+TID   The TID is a 2-digit number and the value is from 00 to 62. The default value for TID is 00. The suffix for the Northern Telecom switch is optional. If the local switch provides another rule for the SPID number, it must be followed. Ensure that the telephone company provides you the SPID number(s) with prefixes and suffixes if applicable (if ISDN line is multipoint). When and only when you 1) install the 2864I for the first time, 2) change the 2864I to another ISDN line or switch, or 3) change the D-channel protocol, you have to key-in the SPID number(s). The SPID number(s) will be stored in a non-volatile memory. The SPID number can be set as follows: ATSPID0=1st_SPID_Number or ATSPID=1st_SPID_Number ATSPID1=2nd_SPID_Number For example, in an AT&T switch system, the DN number is 8189053. If we use the NI1, then the SPID can be 01+DN(8189053)+0+TID(00)=018189053000. So we key-in: ATSPID=018189053000 There will be two different SPIDs if you subscribe two-B-channel ISDN custom service from the Northern Telecom switches. In this case, in addition to the first SPID, the second SPID must be set by using the ATSPID1 command. During TEI assignment, the 2864I will send the SPID(s) to the network for registration. Should the SPID registration fail, the LNK LED will not light up and an error message "SPID error!" will be sent to the DTE. ATSPID? can be used to browse the current settings of the SPID. Selection of 56Kbps or 64Kbps B-Channel Due to the delay of the deployment of SS7 network in North America, many ISDN switches still use in-band signalling. This means that the payload of a B-channel can be only 56Kbps although a clear B-channel is capable of 64Kbps data transmission. While answering an ISDN call, the 2864I can identify the B-channel data bandwidth from the information in the coming SETUP message. Thus its B-channel bandwidth will automatically adapt to the incoming call. But for an outgoing call, the 2864I must know a priori the B-channel bandwidth before a SETUP message can be sent to the network. The following command is used to set the outgoing call's B-channel bandwidth: AT&E0 Try 64Kbps B-channel first; if denied by the network then try 56Kbps AT&E1 Select 56Kbps B-channel (default) where the phrase "denied by the network" means that the network replies the 2864I's SETUP message with a DISCONNECT, RELEASE, or RELEASE COMPLETE message with cause number equals to 88 (Incompatible) or 65 (Bearer Capability not implemented). Control of Outgoing Service Indicator The Bearer-Capability as well as the Called-Party-Number/Keypad information elements are essential to initiate an ISDN call. The Bearer Capability information element indicates what kind of bearer services is desired. The Called-Party-Number/Keypad provides necessary information for the CO to direct the call to the remote party. Other optional information elements which are pertinent to call control include High-Layer-Compatibility, Low-Layer-Compatibility, Called-Party-Subaddress, Calling-Party-Number, and Calling-Party-Subaddress. The purpose of the Bearer-Capability information element is to indicate the requested bearer service provided by the network. It can also be used for compatibility checking in the addressed entity. The purpose of the High-Layer-Compatibility information element as well as the Low-Layer-Compatibility information element is to provide a means which should be used for compatibility check by the called party. They are transferred transparently by the ISDN network between the call originating entity (e.g. the calling user) and the addressed entity. The outgoing High-Layer-Compatibility can be controlled by setting S108+n. Where n = 0 (S108 for internal fax/modem), 2 (S110 for ISDN data call), or 3 (S111 for the a/b adapter). Defined values of S108+n are as follows: S108+n=0 No High-Layer-Compatibility information element will be sent S108+n=1 Telephony S108+n=4 Facsimile Group 2/3 S108+n=40 Teletex service (Rec. F.220) S108+n=49 Teletex service (Rec. F.200) S108+n=50 International interworking for video services (Rec. F.300 and T.110) S108+n=53 Telex service (Rec. F.60) S108+n=56 Message Handling Systems (MHS) (Rec. X.400 series) S108+n=65 OSI application (Rec. X.200 series) The default value of S108+n for all valid n is 0. Bearer-Capability and Low-Layer-Compatibility information elements will be determined when you configure the B-channel protocols by using the command ATBnn. (See Chapter 8 for a more detailed description.) The outgoing Low-Layer-Compatibility information element can be turned on or off as follows: S80.n=0 Disable outgoing Low-Layer-Compatibility (default) S80.n=1 Enable outgoing Low-Layer-Compatibility where n = 4 (S80.4 for internal fax/modem), 6 (S80.6 for ISDN data calls), or 7 (S80.7 for the a/b adapter). Control of ISDN Phone Number and Subaddress The purpose of the Calling-Party-Number information element is to identify the origin of a call, while the Called-Party-Number/Keypad information element to identify the destination of a call. The purpose of the Calling-Party-Subaddress information element is to identify the subaddress associated with the origin of a call. The purpose of the Called-Party-Subaddress information element is to identify the subaddress of the called party of a call. Each type of outgoing call of the 2864I can be assigned with one number-subaddress pair by using the command: AT&ZOx = s where x = M (for internal fax/modem), I (for ISDN data calls) ,or B (for the a/b adapter).The number-subaddress-string s is defined as follows: s=[[Yn][Nn]own-number or A][/[[Zn]own-subaddress]/] where Yn specifies the type of number: Y0 unknown (default if Yn is omitted) Y1 international number Y2 national number Y3 network specific number Y4 subscriber number Nn is the identifier of numbering plan: N0 unknown (default if Nn is omitted) N1 ISDN numbering plan (Rec. E.164) N3 data numbering plan (Rec. X.121) N4 telex numbering plan (Rec. F.69) N8 national standard numbering plan N9 private numbering plan and Zn specifies the type of a subaddress: Z0 NSAP (Rec. X.213) with AFI=0x50, IA5 characters (default if Zn is omitted) Z2 user specified, IA5 characters Modifier A is used to remove the assignment of own number. AT&ZOx=// will remove the assignment of the subaddress. The number and subaddress assigned by AT&ZOx=s, if any, will be used for Calling-Party-Number and Calling-Party-Subaddress information elements respectively while dialing. The default settings of own number and subaddress of all the types of call are UNASSIGNED, it means the SETUP message sent by the Elite 2864I contains neither Calling-Party-Number nor Calling-Party-Subaddress information elements. The command AT&ZO? can be used to browse the current settings of the own numbers and subaddresses. Answering a Call The incoming call will first be identified to be either an ISDN data call or a voice call (including the voice-band-data). ISDN data calls will be assigned to the digital communication processing portion of the 2864I. Voice calls or voice-band-data calls will be assigned to the internal fax/modem or the a/b adapter. The Multiple Subscriber Number (MSN) supplementary service provides the possibility for assigning multiple ISDN numbers to a single ISDN BRI line, it allows a calling user to select, via the public network, one or more distinct terminals on a BRI line. Since the 2864I is a highly integrated multi-function ISDN modem, it can be imagined as a black box that contains multiple distinct terminals. Each of these "internal terminals" can be assigned one ISDN number using the following command: AT&ZIn=s, n=0-7; s is the MSN AT&ZI0=s assign the MSN for X.75; AT&ZI1=s assign the MSN for V.110; AT&ZI2=s assign the MSN for V.120; AT&ZI3=s assign the MSN for PPP async to sync HDLC; AT&ZI4=s assign the MSN for SLIP to sync HDLC; AT&ZI6=s assign the MSN for internal fax/modem; AT&ZI7=s assign the MSN for the a/b adapter. AT&ZI? can be used to display the MSN numbers assigned by the AT&ZIn=s commands. The factory default for these numbers are UNASSIGNED. If an incoming SETUP message is offered with addressing information (i.e. the appropriate part of the called party number), this address will be compared with the MSN numbers assigned by the AT&ZIn=s commands. The call will be accepted using the specific protocol if the assigned number of this protocol matches with the received called party number. Note : Two phone number strings are said to be matched if their least significant "n" digit(s) are identical, where "n" is the number of digits of the shorter string. Usually one digit is enough to distinguish the various protocols. Called-Party-Subaddress information of the incoming SETUP message is not used by the 2864I to select the protocols or services. It just indicates the subaddress (if any) to the DTE. For a voice or voice-band-data call, if the called party number matches with the MSN of the internal fax/modem or the a/b adapter, the call will be delivered to the proper destination. But sometimes there exists ambiguity of address matching. This may happen if the MSN numbers of the various protocols are either unassigned or not matched or the address information is absent in the incoming SETUP message. In this case, users may wish to set the priority of answering a call by the built-in fax/modem or the a/b adapter (for external devices). The AT&Ln command sets the address ambiguity resolution flag : AT&L0 The a/b adapter has a higher priority to answer the voice or voice-band-data call; if the a/b adapter is busy, the call will be forwarded to the internal fax/modem. AT&L1 The built-in fax/modem has a higher priority to answer the voice-band call; if the internal fax/modem is busy, the call will be forwarded to the a/b adapter. For an ISDN data call, if the 2864I can exclusively determine the protocol to be used by means of the information conveyed by the SETUP message (i.e. the Bearer-Capability, Low-Layer-Compatibility, or High-Layer-Compatibility information elements), the indicated protocol will be used. Otherwise, the called party number will be compared with the MSN of various ISDN B-channel protocols. If there is a match, the protocol corresponds to the matched MSN will be used. If the address-matching process is, again, unable to tell which protocol to be used, a default protocol for ISDN data connection will be used to answer the call. The default protocol for answering an ISDN data call is the same as the outgoing service protocol selected by the last ATBnn command. (See Chapter 8 for a more detailed description.) Data calls, digital or analog, are accepted in the same way as in a typical modem. When alerting, the 2864I will send RING message to the DTE with format as follows: RING [FM:[[Prefix]Calling-Party-Number][/Subaddress/]] [TO:[Called-Party-Number][/Subaddress/]] RING RING ...... The display of address information between the first RING and the second RING can be disabled by setting ATS84.4=1 . The term [Prefix] is a predefined number string to be added in front of the Calling-party-number before indicating it to the DTE. This is useful for some automatic dial-back-up systems. The number string can be assigned as follows: ATCI When and only when the type-of-number denotes an international number will this "Prefix" be added to the Calling-party-number before indicating it to the DTE. ATCI<> Disables the international number prefix-adding function.(Default) ATCN When and only when the type-of-number denotes a national number will this "Prefix" be added to the Calling-party-number before indicating it to the DTE. ATCN<> Disable the national number prefix-adding function.(Default) Placing a Call To initiate a call, configure the channel according to the bearer service (or protocol) you want to use. AT&Nn or AT+FCLASS=n for internal fax/modem ATBnn for ISDN data call Pleaserefer to Chapter 8 for the descriptions of the ATBnn command. The ATDx command is used for dialing: ATDx[Yn][Nn]called _party_number[/[Zn]called-party-subaddress/] where x = M (for internal fax/modem), I (for ISDN data calls), or B (for the a/b adapter). Yn specifies the type of number: Y0 unknown (default if Yn is omitted) Y1 international number Y2 national number Y3 network specific number Y4 subscriber number Nn is the identifier of numbering plan: N0 unknown (default if Nn is omitted) N1 ISDN numbering plan (Rec. E.164) N3 data numbering plan (Rec. X.121) N4 telex numbering plan (Rec. F.69) N8 national standard numbering plan N9 private numbering plan and Zn specifies the type of the subaddress: Z0 NSAP (Rec. X.213) with AFI=0x50, IA5 characters (default if Zn is omitted) Z2 user specified, IA5 characters The called_party_number/keypad or an appropriate part of it will be sent to the addressed entity. The called_party_subaddress will be transferred transparently by the ISDN network to the destination. Use ATDL to redial the last dialed telephone number (and/or subaddress). Tips for Beginners For those users who are new to ISDN data communications or are unfamiliar with the use of the 2864I, they are recommended to use the embedded protocol analyzer of the 2864I (see chapter 12). It gives you a comprehensive understanding of the ISDN call control and reveals the consequences of your activities upon the 2864I. Chapter 8 Protocols on BChannels The information conveyed by the ISDN B-channel can be classified into three categories : SYMBOL 110 \f "Wingdings" Voice : telephone, digitized voice SYMBOL 110 \f "Wingdings" Voice-band-data : fax, modem SYMBOL 110 \f "Wingdings" Digital data The digital data category can be further divided into circuit-switched data and packet-switched data. The telephone applications will be addressed in Chapter 9. For the digitized voice as well as fax/modem operations, please refer to the 2864 series modem user's manual. Since for these applications the 2864I is backward compatible with the 2864. Circuit Switched Data (CSD) The CSD protocols supported by the 2864I includes V.110, V.120 and X.75. V.110 is used in Europe and Japan, and V.120 is more often used in North America. Both V.110 and V.120 are protocols for adapting DTEs with a V-Series interface onto B channels. X.75 is originally designed for packet-switched signalling system in public networks to provide data transmission services. But it is also used as link layer for telematic services (as defined in T.90) in ISDN which includes both ISDN circuit-switched mode (DTE-DTE communication) and ISDN packet-switched mode (DTE-DCE communication). Some ISDN Internet service providers use synchronous Point-to-Point Protocol (PPP) to provide access to remote ISDN users. The 2864I provides asynchronous PPP data to synchronous conversion to enable users to talk to these ISDN devices. V.110 V.120 X.75  Layer 1 80-Bit Framing HDLC HDLC  Layer 2 None LAPD LAPB   Layer 3  None  V.120 Transparent, ISO8208, T.70 NL  Error Control No Yes Yes  V.42bis No Yes Yes  Async or Sync if used with V-Series DTE Async and Sync Async Only Async Only  Bundle No Yes Yes  Max. Line Speed Async : 38.4 Kbps (Note 1) Sync : 64 Kbps One B-Ch : 64 Kbps Bundle : 128 Kbps One B-Ch : 64 Kbps Bundle : 128 Kbps  AT-Command Configuration  ATB1n  ATB20 ATB00: Transp. ATB01: T.70 NL ATB02: ISO8208 ATB03: T.90 (Note 2)   Note 1 : 57.6 Kbps is the highest link speed for Japanese version. Note 2 : T.90 specifies ISO8208 as its layer 3 protocol but an optional usage of T.70 NL is allowed. Determining the Packet Length User's information is sent in a frame basis for X.75 and V.120 protocols. That is, they are packetized. Hence the maximum packet length of both sides of a connection should be consistent. It is possible to negotiate this kind of parameters automatically by exchanging XID frames during call establishment. But few manufacturers, if any, have implemented this mechanism. If one side receives a packet that is too big for it to handle, it will discard the packet and reply with a Frame Reject Frame (FRMR) indicating that the Information Field is too long. Both sides will then reset their link layer and resend again. Usually this will happen repeatedly until the disconnection of this call. Use ATCL=n, n=1... 2048 to choose the packet length (in octets). Use ATCL? to check current setting of the packet length. Default packet length after power on is 2048 octets. Note : ATBnn is used to select the B channel protocol for ISDN data call. With a view to avoid confusing with the ATB0 and ATB1 commands (used for configuring the 1200 bps modem), it must be followed by two digits even if these digits are zero. Placing an X.75 Call CAPI 1.1a specifies X.75 with T.70 NL as its default. CAPI 2.0 specifies X.75 with transparent layer 3 as its default. The default data protocol of the 2864I is ATB00, that is, X.75 with transparent layer 3. Other layer 3 protocols can be chosen using the following AT commands: ATB00 X.75 with transparent layer 3 ATB01 X.75 with T.70 NL ATB02 X.75 with ISO8208 ( DTE-to-DTE X.25 packet layer) ATB03 X.75 with T.90 The ATB0x commands not only specifies the outgoing protocol but also sets the default layer 3 for an incoming X.75 call without layer 3 information. It is important for both ends of an X.75 connection to execute the same preassigned layer 3 protocol if there is no way for them to get the layer 3 information of the other side via the SETUP message. In European ISDN (DSS1), the Low-Layer-Compatibility (LLC) information element in the SETUP message can be used to specify the layer 3 protocol. But since this is an option, some of the switches don't deliver the LLC information element to the called site. There is no provision in 1TR6 to specify the layer 3 protocol of an X.75 call. Placing a V.120 Call In the America, default circuit switched data call is using V.120. But in the rest of the world, placing a V.120 data call is not so easy. SYMBOL 183 \f "Symbol" \s 10 \hSelecting V.120 in European ISDN (DSS1) In European ISDN, it is not allowed to select the V.120 option in the Bearer Capability (BC) information element, which is a mandatory information element in the SETUP message. Although we can specify V.120 in the Low-Layer- Compatibility (LLC) information element, but as mentioned before, some switches just don't deliver the LLC, some do but the V.120 selection will be discarded in the mid way. In case the called TA doesn't get any B-channel protocol information from the incoming SETUP message, usually the call will be deemed as the default X.75. But if the MSN for V.120 has been assigned (using AT&ZI2=MSN) and it is matched with the called party number, then the incoming call will be handled as V.120. SYMBOL 183 \f "Symbol" \s 10 \hSelecting V.120 in German National ISDN (1TR6) In 1TR6, data connections are achieved by setting the Service Indicator to be 7 (Daten_bertragung 64 kbps) and the Additional Information octet is used to select B-channel protocols. But since there is no defined code for Async V.120, that is what the 2864I supports, we use the Sync V.120 code to fill the Additional Information octet. If this doesn't work, we may have to use other reserved code. We are looking for the resolutions with respect to this problem used by other ISDN TA vendors and will do our best to make the 2864I compatible with other products. Placing a V.110 Call SYMBOL 183 \f "Symbol" \s 10 \hPlacing an Async V.110 Call Make sure that the 2864I is in the asynchronous mode (AT&M0) and then use the following commands to configure V.110 : ATB10 User rate follows DTE speed (Note) ATB13 User rate = 2400 bps ATB14 User rate = 4800 bps ATB15 User rate = 9600 bps ATB16 User rate = 14400 bps ATB17 User rate = 19200 bps ATB18 User rate = 38400 bps ATB19 User rate = 57600 bps (Japanese version only) Note : The highest async V.110 user rate is 38400 bps (57600 bps for Japanese version). If the DTE speed is higher than this, this maximum user rate will be used. The X bits in the 80-bit frame will be used for remote flow control. SYMBOL 183 \f "Symbol" \s 10 \hPlacing a Sync V.110 Call Use the following commands to configure V.110 for synchronous operation : ATB10 User rate determined by in-band negotiation ATB13 User rate = 2400 bps ATB14 User rate = 4800 bps ATB15 User rate = 9600 bps ATB16 User rate = 14400 bps ATB17 User rate = 19200 bps ATB18 User rate = 48000 bps ATB19 User rate = 56000 bps ATB11 User rate = 64000 bps Note : The 2864I doesn't support network independent clock compensation. In other words, the synchronous timing source of the DTE must be supplied by the 2864I, which is phase locked to the network synchronous clock. Internal card does not support synchronous mode. There are two modes of V.110 synchronous operation : 1) Asynchronous commands, synchronous data (AT&M1). The 2864I accepts AT commands in asynchronous mode. Once the call is connected, it enters synchronous mode for data transmission. S25 determines how many seconds of delay between call connection and examination of DTR. This delay between establishment of connection and examination of DTR allows the 2864I to be moved from an asynchronous port to a synchronous port without disconnecting the call. 2) Synchronous mode (AT&M3). The 2864I accepts synchronous commands (V.25 bis) and exchanges data synchronously with a remote TA. Synchronous communication has traditionally been used by large computers. Placing a PPP Async to Sync Call The B-channel protocol for Internet access or LAN-to-LAN interconnection can be chosen as follows: ATB4 or ATB40 PPP asynchronous encapsulation of HDLC to synchronous HDLC conversion ATB41 Serial line Internet protocol (SLIP) to synchronous HDLC conversion The ATB41 command enables the Transmission Control Protocol/Internet Protocol (TCP/IP) applications with SLIP COM Port drivers to connect to TCP/IP networks at data rate up to 64000 bps. The control characters (the END and SLIP ESC) associated with a SLIP COM Port driver are removed and the Internet Protocol (IP) data packets can be encapsulated using HDLC to communicate with other ISDN adapters or routers that support TCP/IP at ISDN speeds. As stated in RFC 1618 ("PPP over ISDN"), PPP treats ISDN channels as bit or octet oriented synchronous links and that, without prior configuration, an implementation MUST first use bit-synchronous HDLC for initial link establishment. It also states that V.120 is deprecated in favor of the more modern standards, such as PPP in Frame Relay, even though V.120 MAY be used with prior configuration, i.e., both ends agree beforehand to use V.120. The ATB4n command enables the 2864I to become an async to sync converter, as mentioned in RFC 1662 ("PPP in HDLC-like Framing"). The PPP packets sent by the applications to the DTE interface are in asynchronous octet-oriented HDLC framing. The ISDN modem resolves the packets and send them to the network using bit-oriented synchronous HDLC framing, and vice versa. Packet Switched Data (PSD) To be determined. (The X.25 packet data with internal PAD (X.3, X.28 and X.29) will be, at ZyXEL's option, firmware upgradeable when available. Availability and available date are not promised.) Chapter 9 a/b Adapter (Analog Telephone Interface) The a/b adapter enables you to connect an analog terminal (e.g. telephone, fax, PBX, or modem) to an ISDN Basic Rate line. Any conventional analog terminal equipment which supports DTMF tone dialing can be plugged into the RJ-11 socket of this adapter. Configuration of the a/b Adapter The a/b adapter uses an RJ-11 phone jack. The pin assignment of this jack is given in Appendix A. Note for German customers : The inner two pins of the RJ-11 are used for the Tip and Ring (or a and b signals in Germany, the two signals that connect to a telephone set). This is the standard pin assignment. But some BZT-approved telephones use the outer two pins for a and b. If this is the case, use the attached TAE adapter which has a unique interface definition or use an RJ-11 cable that connect the inner pins on one end and the outer pins on the other end. The current settings of the a/b adapter can be viewed by using the AT&V6 command. Placing a Call Calls are placed in the usual manner. Once the adapter's hook sensor detects that the handset was picked up (off hook), it sends a SETUP message to the ISDN central exchange to request a connection. One B channel, if available, will be assigned to this connection and the exchange is waiting for the dialed number to route the call. At the same time, a dial tone is presented to the adapter port to prompt the user to dial. Both tone and pulse dialing are accepted. BUT if one B channel is already used for internal fax/modem operation, tone dialing will not be accepted. This is because the Digital Signal Processor in the 2864I has been allocated for fax/modem function and can not be used for DTMF tone detection. Use pulse dialing instead in this case. The other way around is to dial from the computer. The procedures are as follows: 1. Key in the escape sequence '+++' and enter into command state. 2. Use ATDBs to place a call for the a/b adapter. 3. After the connection indication is shown, pick-up the handset and start to talk. 4. Use ATO to enter into data state and continue the data communication. Note that if one B channel is used for digital data, tone dialing is still accepted for the a/b adapter. If no B channel is available, or the dialed number can not be delivered, or the called party is busy, a busy tone will be heard on the handset. It indicates the failure of the attempt to connect. To place another call, the phone must be hanged-up and then picked up again. If the called party is being alerted, a ring-back tone will be heard. Accepting an Incoming Call Incoming ISDN calls are directed to the a/b adapter if : 1. the addresses in the incoming SETUP message uniquely specifies the adapter as its destination and the service requested is compatible; or 2. the addresses in the incoming SETUP message is acceptable to both the internal fax/modem and the a/b adapter, the service requested is compatible, and the ambiguity resolution bit (Bit 5 of S84) is set to 1 (a/b adapter has the higher priority). The default EAZ(MSN) of the a/b adapter is 4. For a detailed description of the call addressing scheme please refer to Chapter 5. As usual, picking up the handset (off hook) will take the call. Charging Information The charging pulse is passed on to the analog telephone equipment. If the terminal has a counter and display for the call's charges, you can read the current charges at any time. Use ATS89.6 = 1 to enable the metering pulse. Use ATS89.6 = 0 to disable the metering pulse. (This is the default setting.) For some countries, e.g. Switzerland, the metering pulse is of 12KHz frequency. For other countries, e.g. Germany, the frequency is 16KHz. The ISDN modem has an accumulating counter which is cleared at the beginning of a call. The charging information received during the call session will be accumulated on the counter. The counter will remain unchanged until next call setup. The charging units of the last call can be read by using the ATCH? command. Feature Phone ISDN has been designed to support many luxury telephone features. Using the ISDN modem's a/b adapter, even with simple analog telephones, the user can enjoy the ISDN features such as call back, broker, and 3-way conference. Notice : The following features may not be available if your local ISDN switch doesn't support it. SYMBOL 183 \f "Symbol" \s 10 \hCall Back You may place your current call on hold and then make another call to a third party. Afterwards, when the second call is over, you may return to the original call. SYMBOL 72 \f "Wingdings" Press the flash key. (touch tone only) SYMBOL 72 \f "Wingdings" Dial "0" to get a dial tone. SYMBOL 72 \f "Wingdings" Dial the desired number and talk with the third party. To return from call back : SYMBOL 40 \f "Wingdings" Hang up the handset. The phone will ring. SYMBOL 41 \f "Wingdings" Pick up the handset and continue your original call. SYMBOL 183 \f "Symbol" \s 10 \hBroker You can place your current call on hold while making another call to third party. Once the connection is established, you can switch back and forth between the two calls. SYMBOL 72 \f "Wingdings" Press the flash key. (touch tone only) SYMBOL 72 \f "Wingdings" Dial "0" to get a dial tone. SYMBOL 72 \f "Wingdings" Dial the desired number and wait until the call is answered. The connection to the first call will be kept. To switch back and forth between the two calls SYMBOL 72 \f "Wingdings" Press the flash key. (touch tone only) SYMBOL 72 \f "Wingdings" Dial "0". You will be switched to the other party. To return from brokering SYMBOL 40 \f "Wingdings" Hang up the handset to terminate the current call. The phone will ring. SYMBOL 41 \f "Wingdings" Pick up the handset and continue the rest of the call. SYMBOL 183 \f "Symbol" \s 10 \h3-Way Conference (Firmware upgradeable) You can place your current call on hold while making a call to a third party. Once the connection is established, you and your two partners can jointly have a discussion. SYMBOL 72 \f "Wingdings" Press the flash key. (touch tone only) SYMBOL 72 \f "Wingdings" Dial "0" to get a dial tone. SYMBOL 72 \f "Wingdings" Dial the number of the third party and wait until they answer. Tell them you are creating a conference call. SYMBOL 72 \f "Wingdings" Press the flash key. (touch tone only) SYMBOL 72 \f "Wingdings" Dial "3" to join the two calls into a 3-way conference call. To terminate the conference SYMBOL 40 \f "Wingdings" Hang up the phone Note : A 3-way conference can also be established with an incoming call. Chapter 10 V.42bis Data Compression V.42bis is an international data compression standard commonly used in modem communications. This standard provides real time data compression. The compression ratio for a typical text file is around 2-4 :1. ZyXEL's expertise in data compression has been brought into ISDN applications which are much faster in speed than modem communications. Two independently full-duplex compression channels are supported by the ISDN modem for the two B-channels. They will automatically be configured into one high speed compression channel if the connection is in the aggregated two B-channel mode (Bundle mode). Since the V.42bis algorithm needs an error-free transmission channel between the compression and decompression processes, it can only work with a protocol with error control competence. X.75 and V.120 are such protocols that can be used together with V.42bis data compression. The V.110, on the other hand, is just an R-interface layer 1 adaptation protocol without error-control and is, thus, inadequate for V.42bis. Invoking V.42bis Data Compression The following AT commands are used to switch the V.42bis on and off for ISDN data call. AT&K44 enable V.42bis on ISDN call AT&K00 disable V.42bis on ISDN call Note : To avoid confusing with the AT&Kn command used for modem error control and data compression, &K must be followed by two digits (00 or 44). At the time this manual is prepared, there is a proposal titled "Draft New Annex C for Rec. V.120 - Support of V.42bis Data Compression" pending for approval in the ITU-T Telecommunication Standardization Sector, it defines the procedures of using XID frames to negotiate/indicate the use of V.42bis data compression and its associated parameters values between two ISDN TAs that are connected with V.120. Since this proposal is likely to be accepted as a standard in the near future, It is closely followed by the 2864I for V.120 data compression. For X.75, to negotiate compression parameters with the remote ISDN terminal, we exchange XID frames before the Link Layer is established. The calling site will send an XID frame with V.42bis request to the called site. If the called site understands this XID's meaning, it will 1) reply an XID frame with V.42bis request , if it is able to execute V.42bis; or 2) ignore the XID or reply an XID frame with V.42bis reject or empty information field, if it is unable to execute V.42bis. The calling site will assume that the remote site is unable to execute V.42bis if it gets no reply for a period of time after sending the request XID. In this situation, normal connection without data compression will be established. It takes about 2 seconds for the calling ISDN TA to send XID and wait until time out. If you know in advance that the called site has no V.42bis capability, you had better to issue the AT&K00 command beforehand in order to get a quick connection. Although not defined in X.75, XID frame is based on the encoding in ISO Standard 8885 and being used in V.42/V.42bis. In addition to the compression parameters, XID can be used to negotiate the packet parameters as window size, packet size, and so on. Thus we appeal to other vendors to use this scheme to make X.75 more compatible. Any suggestion on this issue is highly appreciated. If you are interested in the V.42bis negotiation procedure, you can use the embedded protocol analyzer to capture and analyze the exchanged XID frames. Chapter 11 Bundle Connection (128 Kbps) Narrow band ISDN (also called Basic-Rate-Interface, or BRI) consists of three (2B+D) logical channels. Each B channel can be used independently for a dial-up connection with 56K or 64K bps (bits per second) line speed. The two B channels can also be used together for a single data connection to provide 112K or 128K bps line speed. This is called 'bundle connection'. If the V.42bis data compression mechanism is enabled the line speed can reach half a mega bps for a typical text file transfer. Identifying Your Line Provisioning Line provisioning refers to how your service provider configures your ISDN lines. For bundle connection, the two B channels of your ISDN line must be able to handle data circuit switch connections with unrestricted 64K or 56K bps line speed. Two separate data calls will be established consecutively and then Multiple Link Protocol (MLP) or 'cFos' channel bundling (CCB) is used to bundle the two B channels. Note that there are two circuit connections thus the telephone charge for bundle operation is twice of that of a single B channel data call. Note : At this moment, CCB is not supported for the American ISDN. Note : For LAN-to-LAN interconnection and Internet access, PPP over ISDN is widely used. The IETF (Internet Engineering Task Force) group is working to standardize dynamic Multiplelink PPP, it extends the current PPP protocol to handle channel aggregation. ZyXEL will, at its option, provide a firmware in the future to enable the 2864I users to easily upgrade to Multiplelink PPP. Making a Bundle Call A bundle connection is initiated at the calling site by sending two consecutive SETUP messages to network. The two SETUP messages are all the same except for the Call Reference values. AT&Jn can be used for bundle configuration : AT&J0 Disables B channel bundling AT&J1 Enables B channel bundling in answer mode only AT&J2 Enables B channel bundling in call mode only AT&J3 Enables B channel bundling in both call and answer modes The bundle protocol can be selected as follows : ATS100=0 MLP channel bundling ATS100=1 CCB channel bundling If channel bundling is enabled, the ATDIs command will generate two consecutive SETUP messages to invoke bundle initiation. For Northern Telecom ISDN, each BRI destination phone number can only be called once in any time. In order to use two B channels for aggregation, we must place two calls with different phone numbers. The following command can be used for this purpose: ATDIphone_number_1+phone_number_2 where phone_number_1 and phone_number_2 are the phone numbers of the same ISDN BRI line. At the called site, if it receives two consecutive SETUP messages with the same Calling Party Number (or Origination Address for 1TR6) and Bearer Capability (or Service Indicator for 1TR6) then this is deemed as a bundle request. The two data calls are established following normal call control procedures. That is, the network treats them as two independent calls. The TAs in the two sites then use X.75 Multiple Link Protocol or 'cFos' channel bundling protocol to coordinate the two B channels. The former would need an overhead of two octets for each packet. The success of bundle connection initiation is indicated by the connect message reported to DTE as follows: CONNECT 460800 / X.75M 128K / V42b If any B channel is unavailable in any site then the bundle initiation will fall back to single channel connection. In this case the connect message may be as follows: CONNECT 460800 / X.75 64000 / V42b Bundle Connection with V.42bis Data Compression If both sites have set AT&K44 to enable V.42bis negotiation then XID frames will be exchanged through the main B channel which corresponds to the call established by the first SETUP message. Only one data compression channel will be used in bundle connection. That means the compression is done before packet disassembly and the decompression is done after packet assembly. The compression ratio of V.42bis is commonly recognized as up to 4:1 for text files. If the line speed is 128K bps, then the DTE speed may reach 512K bps. This makes the DTE's normal RS-232 serial port unsuitable for bundle applications. Special I/O card on the computer side is required in this situation for external models (Elite 2864I and Supreme 2864I). But half mega bps is still well below the bandwidth of the ZyXEL Internal Card's serial port interface. Chapter 12 Embedded Protocol Analyzer The embedded protocol analyzer (hereafter abbreviated as EPA) records and analyzes various protocols on the D-channel, B-channel, and DTE-DCE interface. The results are displayed with ANSI color. This professional tool is designed for the hobbyists as well as users with technical background. The EPA enables you to examine the messages exchanged between your ZyXEL ISDN TA and the Central Exchange office in order to make an ISDN call. You can review the packets sent or received through a B-channel (for X.75 or V.120) to or from a remote site. You can also check the AT commands issued by an application software and comprehend their causal relationship with other events. In addition to tutorial purpose, the EPA is very useful for diagnostics. If you have compatibility problems with your Central Exchange or with the TAs at the remote site, the EPA will be your first aid. According to the EPA's analysis, you may decide to fix the problem yourself (e.g. modify the configuration and try again) or log the analyzed results as a file (which is a very comprehensive bug report) and then send it to your nearest ZyXEL agent. Capturing the Protocol Data The data captured by the EPA can be classified into three categories : SYMBOL 110 \f "Wingdings" D-channel signalling protocols. SYMBOL 110 \f "Wingdings" B-channel user data protocols. SYMBOL 110 \f "Wingdings" DTE-DCE protocols. The D-channel signalling protocols include the layer 2 and the layer 3 call control protocols. Frames and messages exchanged via the D-channel are all recorded for further analysis. These data are essential to understand the interactive operations between an ISDN TA and the ISDN network. They contain the compatibility information of the ZyXEL ISDN TA and your Central Exchange. The B-channel user data protocols include the X.75 and V.120. Only the layer 2 header (addresses and control bytes) and layer 3 header are captured. Since X.75 may be used with various layer 3 protocols (e.g. T.70, T.90, and ISO8208), only the first 8 octets of the information field are recorded as the layer 3 header and it is displayed in raw data form. The analysis will be carried out by the technical people. The DTE-DCE protocols (at the R reference point according to the ISDN nomenclature) include the AT commands/responses as well as the CAPI internal interface. The CAPI internal interface is used with ZyXEL CAPI driver. The ZyXEL CAPI driver communicates with the 2864I through this internal interface. Users are not recommended to get involved into this internal interface. The AT commands/responses, on the other hand, are standard user interface and the analysis of them might be very instructive to you. Every messages captured by the EPA are tagged with a time stamp according to a free running timer that starts at the beginning of capturing. The resolution of this timing information is in 0.01 second. The following commands determines the kind of protocol data to be captured by the EPA : ATCDn CD0 Disable the capture of D-channel protocols CD1 Enable the capture of D-channel protocols (default) ATCBn CB0 Disable the capture of B-channel protocols (default) CB1 Enable the capture of B-channel protocols ATCCn CC0 Disable the capture of DTE-DCE interface protocols (default) CC1 Enable the capture of DTE-DCE interface protocols The EPA starts to capture data when the command ATCT is issued. This capturing process will continue until the command ATC$ is issued. The EPA maintains a 8 KByte RAM as a ring buffer. In case the buffer is full, the earliest data will be overwritten by the latest data. Analyzing the Captured Data To view the analyzed result, use the command ATC$. For convenience, the relevant AT commands are summarized as follows. ATCT Clear buffer and start the embedded protocol analyzer. Capture data immediately and start timer. ATC$ Invokes the interpretation function of the embedded protocol analyzer and displays the results on DTE screen. The analyzed result can be viewed as if it is in a full screen editor. Several number keys are used to control the display. For PC users, it is convenient to use the keys on the numeric keypad (make sure that NumLock is on.). The functions of the control keys are summarized as followings. Key Function Description 1 End Display to the end of buffer 2 Cursor down Scroll one line up 3 Page down Display the next page 7 Home Display the first page 8 Cursor up Scroll one line down 9 Page up Display the previous page Q,q Quit Quit embedded protocol analyzer Any other key will pop up this control menu. Chapter 13 User-To-User Information The ISDN modem supports usertouser information exchange via the Dchannel. To transmit a message, use ATT4 command. The message will be included in an UserToUser Information Element which is sent with the first valid MESSAGE that follows. If the ATT4 command is issued before dialing, the UserToUser Information Element will be sent in the SETUP message. Whether the Information Element can be sent to the called party or not is switch dependent. If it does, the called party can see the message before the call is answered. During a call connection session the Dchannel can still be used to exchange usertouser information. For the single stream configuration, both sides must be in 'Escaped' state, because only so can they send the AT commands and view the responses. The user-to-user information is a supplementary service that has to be invoked on a percall basis. Chapter 14 Data Encryption For many years, the cryptographic protection of data communication has been thought as a matter of military or government security agencies. But during the last two decades, with the advance of microelectronics and computer-communication technology, the following trends may change the situation : 1) Companies and individual users rely more on data communication to exchange sensitive information. Specifically, more and more people are using ISDN for LAN-to-LAN interconnection and Internet services. 2) Cheap but powerful equipment makes the interception job of wire-tappers or crackers easier than before. 3) It is possible now for civilians to employ security practices that can protect against even the most powerful adversaries. The 2864I ISDN modem adopts two proven security practices, Data Encryption Standard (DES) and Key Exchange using Public Key Algorithm , to provide an absolute secure and privacy-respect environments of data communication for you. Note : ZyXEL does not assume any liability arising out of the application or use of any of the security functions described in this chapter; neither does it convey any license under its patent rights nor the rights of others . Data Encryption Standard (DES) DES is one of the Federal Information Processing Standards of the United States. DES is a block cipher; it encrypts data in 64-bit blocks. A 64-bit block of plain text goes in one end of the algorithm, and a 64-bit block comes out of the other end. Both encryption and decryption use the same algorithm. The key length is 56 bits. Some of the 56-bit numbers are considered to be weak keys, but they will be avoided by the modem automatically. One major criticism of the DES is that its key is too short to survive the brute force (exhaustive search) attack of today's technology. Triple DES, which uses two DES keys, has been adopted to improve the DES algorithm in ISO 8732 standard. In this way, the equivalent key length is 112 bits and the resultant cipher text is much harder to break using exhaustive search : 2112 attempts instead of 256 attempts. The table below is an estimation of security depending on key length using the 1990s' technology: ( Please refer to Dr. Dobb's Journal, April 1994 for more detailed information.) Key Length Time for a $1M Machine to Break Time for a $1B Machine to Break  56Bits 3.5 hours 13 seconds  100Bits 7 billion years 7 million years  128Bits 1018 years 1015 years   Mode of Operation Four modes of DES operation have been specified in FIPS PUB 81. The 2864I supports the Cipher Feedback (CFB) Mode. CFB is used because it allows user's data to be of any length (not restricted to be multiples of 64-bit block) without any overhead. This is convenient for asynchronous communications where the length of the information field of the I-frame varies. Manual DES Key Generation The key used by DES can be either manually entered via an AT command or automatically generated using a public-key algorithm on a per call basis. The AT command ATCK is used to preset the DES key. The DES_Key is a string of printable characters. The number of characters in the string should be larger than 15 and less than 65. The AT command interpreter will convert the string DES_Key to a real DES key. The 2864I will check if the converted key is a weak key for DES, if so, it modifies the key according to a predetermined rule to get a non-weak key. Both ends of an ISDN link should key in the same DES_Key before a DES ISDN call can be established. Fail to do so will cause either an immediate disconnection or an unintelligible connection. Key Exchange Using Public Key Algorithm It is a cumbersome job for users to remember the DES_Key for each node on the network. Therefore the 2864I employs the Diffie-Hellman public key algorithm to generate a secret key automatically for each ISDN data call. This is a simple yet useful key distribution system. Note : Diffie-Hellman key-exchange algorithm is patented in the United States and Canada. The U.S. patent will expire on April 29, 1997. Before that time, unless ZyXEL obtains a license, the North America version of the 2864I will not include this key distribution function. The procedures are as follows : 1) A dials the ISDN number of B wishing to make a secure DES connection with B. 2) A generates a large secret random number Xa and calculates Ya= SXa mod P. B generates a large secret random number Xb and calculates Yb= SXb mod P. 3) A sends Ya to B, and B sends Yb to A. 4) A computes the keya = YbXa mod P, and B computes the keyb = YaXb mod P Both keya and keyb are equal to SXaXb mod P. P is a large prime number and S should be a primitive root mod P. Both S and P are predetermined in the firmware. The security of this algorithm depends on the cracker's ability to solve discrete logarithm problems. Thus, P should be as large as possible. At this time the 2864I handles integers of 128 bits long. The numbers should be of 512 bits long for stringent protection of classified data in 1990s. So the key exchange scheme is somewhat insecure at this moment. Serious users are recommended to use manually generated key with triple DES for top secret communication. The capability to handle 512-bit long key distribution algorithm will be, at ZyXEL's option, firmware upgradeable. The cost for the extra security will be a longer handshaking period during link layer establishment. Control of Data Encryption The AT commands to control the data encryption are as follows : ATS89.0 = 1 DES is desired ATS89.0 = 0 DES is disabled (Default) ATS89.1 = 1 Triple DES is preferred ATS89.1 = 0 Single DES is preferred (Default) ATS89.2 = 1 Use manually generated key ATS89.2 = 0 Key distribution system is desired (Default) TheDES request as well as the key distribution parameters, if any, are exchanged via XID frames just in the same way as the V.42bis negotiation. Interested users can use the embedded protocol analyzer to examine the structure of XID frames. Both the V.42bis and the data encryption functions can be invoked simultaneously for an ISDN data call. But the DES can not be used for bundle connections due to the limitation of computing resources. LED Indications of Data Encryption B-channel LED indicator (B1 or B2) lights up when the B-channel is connected. Single blinking LED indicates that data transmission is protected by Data Encryption Standard (DES). Triple blinking LED indicates that data is protected by triple DES. Authentication Virtually all security services are dependent upon the identities of the communicating parties being reliably known, i.e. authentication. DES may prevent the eavesdroppers from monitoring the data link, but what if a cracker, using an 2864I, intercepts a call on the other end ? He or she may forge the greeting message and prompt of a server (say, a BBS or a remote-LAN-access server) in order to get your password. This is an inherent problem in a key distribution secure system. A Simple Authentication procedure described in ITU-TSS (formerly CCITT) Recommendation X.509 is feasible for peer entity authentication. The implementation of the authentication procedure is beyond the scope of an ISDN modem. Interested system integrators can have a contact to ZyXEL for possible cooperation. Chapter 15 Diagnostics The 2864I ISDN modem provides several diagnostic capabilities: SYMBOL 110 \f "Wingdings" Embedded Protocol Analyzer (See Chapter 12) SYMBOL 110 \f "Wingdings" Power-on Self-test SYMBOL 110 \f "Wingdings" Analog Loopback Test (For internal fax/modem only) SYMBOL 110 \f "Wingdings" Analog Loopback with Self-Test (For internal fax/modem only) SYMBOL 110 \f "Wingdings" Local Digital Loopback Test SYMBOL 110 \f "Wingdings" Remote Digital Loopback Test (For internal fax/modem only) SYMBOL 110 \f "Wingdings" Remote Digital Loopback with Self-Test (For internal fax/modem only) SYMBOL 110 \f "Wingdings" Re-transmission Indicator SYMBOL 110 \f "Wingdings" Link Status Report (For internal fax/modem only) SYMBOL 110 \f "Wingdings" ISDN Modem Reset For the description of those diagnostic functions that are exclusive for internal fax/modem, please refer to the 2864 Series Modem User's Manual. Power-on Self-test At each power-up or upon a reset command from the panel, the modem will test the main-board's ROM code checksum, system RAM memory, DSP code checksum, DSP RAM memory, EEPROM, digital circuits and analog circuit calibrations. The 2864I will also test the ISDN daughter board to make sure that the interface circuits are ready to serve. SYMBOL 183 \f "Symbol" \s 10 \hMain-board's Self-test The HLD LED will be ON during power-on main-board self-test, and OFF after the test if it is OK. The LNK LED flashes if the test fails. The number of blinking indicates the error number according to the following table: 1. ROM code checksum error. 2. System RAM fail. 3. EEPROM checksum error. The factory default settings will be downloaded to the EEPROM and the self-test will be re-initiated. This is not a real error. 4. The testing of DSP RAM fails - Condition A. 5. The testing of DSP RAM fails - Condition B. 6. Analog circuit calibration error. (VO calibration fail) 7. Analog circuit calibration error. (VR calibration fail) 8. Analog circuit calibration error. (FR calibration fail) 9. Communications between controller and DSP fail - Condition A. 10. Communications between controller and DSP fail - Condition B. SYMBOL 183 \f "Symbol" \s 10 \hISDN Daughter Board's Self-test Once the main-board's self-tests have been passed, the 2864I starts to test the ISDN daughter board and its interface with the main-board. There are six test items for this test, each test takes about half a second. The following table is a summary of the ISDN daughter-board self-test : Test Seq. LED B1 LED B2 LED AA Test Description  1 on* off off Siemens 2086 chip's address/data bus test  2 off on* off Siemens 2086 chip's functional test  3 off off on* Siemens 2160 chip's functional test  4 on* off off Interface test 1 with Siemens 2086 chip  5 off on* off Interface test 2 with Siemens 2086 chip  6 off off on* Interface test 3 with Siemens 2086 chip   * Note : The LED lights up while test is going and blinks if test fails. The LNK LED will lights up for half a second to indicate the success of the Elite 2864I's power- on self-test. After this, the LNK LED will become the normal physical layer (layer 1) active indicator. ISDN Loopback Test SYMBOL 183 \f "Symbol" \s 10 \hLoopback Test (AT&T9) The AT&T9 command will invoke an ISDN loopback test connection. The loopback point is in the S/T interface chip (Siemens 2086 chip) or the U interface chip (Siemens 2091 chip) just behind the line transformers, thus it checks almost every part of the ISDN TA and RS-232 cable except the passive front-end of the ISDN S/T or U interface. During this test, data from the terminal or computer is sent through the DTE interface to the ISDN modem's transmitter and is packetized to the proper frame format according to the B-channel protocol selected and then loopbacked to the receiver, depacketized, and sent through the DTE interface back to the terminal or computer's screen. You can tell if anything is wrong by looking at the screen. The screen should show the data you have sent to the ISDN modem. SYMBOL 183 \f "Symbol" \s 10 \hLoopback with Self-test (AT&T10) The AT&T10 command will invoke an ISDN loopback connection with self-test. The data is generated by the ISDN modem and will go through the same path as the above Loopback Test does. The data pattern is printable ASCII characters. You can see the result on the screen. The loopbacked data is compared with the transmitted data. Should an error happen, the LNK LED will start to flash. Send any character through the DTE interface to the ISDN modem will discontinue the test. Appendix A Phone Jack Pin Assignments The 2864I series ISDN modem features one RJ45 phone jack and one RJ11 phone jack . The RJ45 (ISDN S) jack is for ISDN line connection (S/T interface), and the RJ11 jack (PHONE)(it is also known as a/b adapter in European countries) is for an optional connection to an analog telephone equipment such as a telephone set or answering machine or fax machine or modem. The signals on the RJ45 pins are: 1 Not Connected  2 Not Connected  3 Transmit Signal (T1)  4 Receive Signal (R1)  5 Receive Signal (R2)  6 Transmit Signal (T2)  7 Not Connected  8 Not Connected   The signals on the RJ11 pins are: 1 Not Connected  2 Ring  3 Tip  4 Not Connected   For the U interface model, the signals on the RJ45 pins are: 1 Not Connected  2 Not Connected  3 Not Connected  4 Ring  5 Tip  6 Not Connected  7 Not Connected  8 Not Connected   Appendix B ZyXEL Parallel Port Interface Signal Pin Signal name Description Direction Adapter-Printer  1 -STROBE Strobe pulse --->  2 DATA 0 Data signal; bit 0. <--->  3 DATA 1 Data signal; bit 1. <--->  4 DATA 2 Data signal; bit 2 <--->  5 DATA 3 Data signal; bit 3 <--->  6 DATA 4 Data signal; bit 4 <--->  7 DATA 5 Data signal; bit 5 <--->  8 DATA 6 Data signal; bit 6 <--->  9 DATA 7 Data signal; bit 7 <--->  10 -ACKNLG Acknowledge signal; data is received by printer and printer is ready to accept other data. <---  11 BUSY Busy signal; printer is not ready for receiving data. <---  12 PE Paper end <---  13 SLCT Printer is in the selected state; printer on line. <---  14 -ATFD Auto-feed; paper is auto fed one line after every line printing --->  15 -ERROR Printer is in error state <---  16 -INIT Reset printer to initial state. --->  17 -SLCT IN Enable printer for data entry --->  18 GND Ground -  19 --- Not connected -  20 GND Ground -  21 GND Ground -  22 GND Ground -  23 --- Not connected -  24 GND Ground -  25 GND Ground -   Note: "Direction" column refers to the direction of signal flow. When the 2864I's parallel port is connected to a PC parallel port, it emulates the printer side; when the 2864I's parallel port is connected to a printer, it emulates the adapter side. PAGE2 PAGEiii PAGE14 !v} .A st#vz}.A st!v}.A stcw:/ > ] ;--"System-   / //-[(: - m( --8D$<****************|*y*v*r*o*k*g*b*^*Y*T*O*J*D*?*9*3*-*&* **** ***************************<*<*************** ***(*1*:*C*K*R*X*^*d*h*m*p*s*u*w*x*xY*xY**$*+K+9+*$+++++pe+H++ 8AE*eE*kE*qF*wG*}H*I*J*L*N*P*R*T*W*Z*\*`*c*f*j*n*r*v*z*******************************++++++ +} +w +q +k +e +^ +X +R +L+F+@+;+6+1+,*'*#****** * *********************z*v*r*n*j* f* c*`*\*Z*W*T*#R*'P*,N*1L*6J*;I*@H*FG*LF*RE*XE*^E*eb*eb*[c*Qe*Hg*@j*9m*2q*+u*%z* ************** *%*+*2*9*@*H*Q*[*e*n*x********************z*u*q*m*j*g*e*c*xb*nb*e$+%+l+Z++ 8 h++++,#,++h++v++v+v--a 8'' --8$$D} }                                  } } }N N N N O P Q R S U V X Z ] ` b e i l p s v x z | ~         } d                                         } { x u r o l i f ` [ W R O K H E B @ > = < ; : : d: d 2$6 M MA <A ;E :I 9M 8P 6S 4U 1X /Z ,\ (^ %_ !` a a b b t 6t 6 --$ + wYwc %  + --8$$DY Y                                  Y Y Y^ ^ ^ ^ _ ` a b c e f h j m p r u y |                Y @                                               | y v p k g b _ [ X U R P N M L K J J @J @ $ Q Q                  + 0 4 8 < ? C E H J L M O P P Q Q Q Py Ot Mo Kk Hg Ec A_ =\ 9Y 4W /U *S $R Q Q Q R S U W Z ] a e j n t z          } z v s q n l j i h g f f f g "g %h (i +k .m 0n 2q 4s 5u 7x 8{ 8~ 9 9 9 9 8 7 7 6 4 3 1 / - + ( & #                     87$~~~~~} |{ywus!q#o%l'j(g*e+b-_.\.X/U0Q0N0J0F0B/?.;.8-4+1*.),')%'#$!"  h,,,,-.. 0 13579<?BFJNRUX[^`b c efgghhhh $g6uP8g8b$++CC}k}p}u}z}~~~~|zxwutsrqonljhfca^[XUROKHD@=:630.+(&$" |vq+C+m+r+v+{,,-./12479=@DHMQTWZ]_acdff{gvhrhmhChC+  8 *  D  W   Q m Q *  ^ { k ^  8    9 L  f  # Q  Q   k 1  J$4 4 3 2 0 . + ) % "       ~ x s n i f b ` ^ \ [  [  [ \  \  ]  _  ` b # d & g ) j + m - p / s 1 w 2 { 3  K  J y H s F m D g @ b = ] 9 Y 4 U 0 Q * N $ K  I  G  F E  E E E F G H I J K M O Q S U X [ ^ a d g k n r v z ~     % + 0 6 : ? B E H J K L 4 8D$e ~ z v r n k h d a ^ \ Y W U S Q O N L K J I I H H H e H e ] ] ^ _ a d g j n s x ~ ~ ~ ] ]  $   f f P dP df f  $   8 f  F P dP 9 P P +  8D$                        ! # $ % & ' ' ( ( ( ( ( ' ' & % $ # "~ z v s p l i f d a _ ] [ Y W V T S R Q Q P P P P  e e f g i l o r v {                         e e  8b$8P 8 P P x }                                                                    ~ z w t p m j h e b ` ^ \ Z X V T S R Q P P P ~P 8P Pe ze e e f f g h i k l n q s w z ~                 z P Pe $    C a # ^P AP  P P   8D$s                                          ~ z v s p l i f d a _ ] [ Y W V T S R Q Q P P P sP s e e f g i l o r v {                         e e  $ 6  O  O   f f O O f 6 f 6  $  \! \! ! !f f  8D$l! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !| !z !w !u !s !q !o !m !l !j !i !h !g !g !f !f !f l!f l! !{ !{ !| !} ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !{ !{  $## ## # 5# 5#o #o ## *$## ## # # # # # $# ,$# ,$o $o $ $ $ $ $ #o #o ## $ R$# j$# j$ $ $# $# $ $o $o j$ j$o R$o R$#  4$'+/36+Y6[/]']uu R $"   '8D$ !#$&'()}*x*s+n+i+c+^+Y*T*O)K(F'B&>%:#6"2 /,(%"         !!"#%(+.27 < BHNU]emu|  !!4$_'`+a/b3c66/'  k H H__' $ u>u>__*J*J 8 E_rEy}.}y}$ ,Zx:kuX-Wl $ !)19@GNTZ_dhkoqsuvvvutrp{nwktgqcn_kZiUgPfJdDc>a7`1^+]%\ ZYWVTR P N KHD@=: 7 5 2 0.,*)'&"%&%*$/$4$8%<%@&D(G)J+M.P0R3T6V9W=XAYEZIqIqCp<n7l1j,g'c#_[VQKE?80)" "&+/49?DJOTX\_behj lnpr%t,u2w8x=yB{F|J}NQTWY[\]^^^]\[YWUROLHD@;61+'"  87${{{{{zyxvtrpnli g d b_\YURNKGC?<851. + ) &$!e))))*++-.02469<?CGKORUX[]_`bcddeeee $0Io= 08Ansx}  "$'*,.0245789::};x;s;n;h;c:^:Y9T8O7J5F4B2>0:.6,2*/',$)"&#    #&),/26:>BFJOTY^chnne]VOHB=840-*(&%%%&(*- 048=BHO V!]"e"n"v!~  ~vn 87$~ | zxvtqoljgda] Z!V!S!O!K!G D@=9631.,)'% # " m1111233568:<>ADGKOSWZ]`ceghjkllmmmm8b$;;SS{}|zyxwvtsqomkhfc`]ZWTPMIEB?;8530-+)'%#!;S0}00011234679<>BEIMRVY\_bdfhikklmm}mSmS087$ % + 1 6 < A E ~J |M zO xR vT tV qX oY l[ j\ g^ d_ a_ ]` Za Va Sa Oa Ka G` D_ @_ =^ 9\ 6[ 3Z 1X .V ,T )R 'O %M #J "F A = 8 3 . ( #  m1$ 1( 1, 10 24 37 3: 5= 6? 8A :C <E >F AG DG GH KH OH SG WG ZF ]D `C cA e? g< h: j6 k3 l/ l+ m' m" mm 87$!!!x!x!x!x!x!w!v!u!s!q!o!m!k!i"f"d"a"_"\ "Y "V "R "O "K "H "D "@ "< "9 "5 "2 "."+"("&"#"!!!!!!!!!!!!!!!!!!b!&!&!&!&!'!(!(!*!+!-!/!1!3!6!9!<!@!D!H!L!O!R!U!X!Z!\!]!_!`!a!a!b!b!b!bJ$""""""""""""""|"w"q"k"e"_"Z"U"P"L"H"D"A">"<":"9"z8"s8"k8"b9"[:"S<"L>"FA"@D";G"6K"1O".T"*Y"(_"&e"$k"#r"#w"#{"$"$"%"'"("*","/"2"5"8";"?"C"G"G"A";"5"/"*"%"!"""""""z" r" n" i" d"`"\"X"T"P"L"H"E"B">";" 8"#6"&3")0",."/,"3*"6(":&">%"B#"F""K!"O "T "Y"^"c"h"m"s "x "}!"""#"%"&"(")"+"."0"2"5"7":"="@"D"G"K"N"R"V"Z"^"b"g"k"p"x"""""""""""""""""87$"""x#x#x #x&#x+#w1#v6#u:#s?#qB#oD#mG#kI#iK#fM#dN#aP#_Q#\S#YT#VT#RU#OV#KV#HV#DV#@V#<U#9T#5T#2S#.Q#+P#(O#&M##K#!I#G#D#B#?#;#6#2#-#(######"""b"&#&#&!#&%#')#(,#(/#*2#+4#-6#/8#1:#3;#6<#9<#<=#@=#D=#H<#L<#O;#R9#U8#X6#Z4#\1#]/#_+#`(#a$#a #b#b#b"b 8A!(%@(%I)%R+%Z-%a0%h3%n7%t;%z@%~E%K%Q%X%_%g%o%w%%%%%%%~%z%t%n%h%a%Z%R%I%@%7%.%&%%%% %%%%%%%w%o%g%_%X%Q%K%E%@%;%7% 3%0%-%+%&)%.(%7(%@=%@>%2@%'E%J%R% Z%d%o%z%%% %%%'%2%@%N%Y%d%l%s%xz%{o%|d%{Z%xR%sJ%lE%d@%Y>%N=%@$ %%%D0&D0&D&D&0&0&2%2%%% 8A!%%%% %#%&%*%.%3%8%>%D%K%R%Z%b%j%r%y%%%%%%%%%%%%%%%%%%%y%s%m%g%c%_%[%Xy%Vr%Tj%Sb%SZ%SR%TK%VD%X>%[8%_3%c.%g*%m&%s#%y %%%%%0%1%3%8%}=%uE%nM%iW%fb%em%fw%i%n%u%}%%%%%%%%w%m%b%W%M%E%=%8%3%1%0%86%V%%%%%& &&&&&&&&&&&4&4&1&/&.&-&+&+&*&)&'&%&"&&&&#&'&*&,&.&/&/&/&y.&s,&n*&i'&e$&a &^&[&X &W&V%V%V%g%g&g&h &i&l&o&s&y&&&&& &&&%%%g$Y&&&&&&&&&&&&&&&&~&t&l&d&_&[&X&W&X&Z&_&|e&tl&mu&h&e&d&e&f&i&l&q&v&|&&&x&o&g&`&Z&V&T&S&S{&Ts&Vl&Xf&[`&_[&cV&hQ&mM&sJ&zG&E&C&B&B&B&C&E&G&J&M&Q&U&Z&_&e&k&q&x&&&&&&&&&&& "Arial\-- 2 rZyXEL Times New Roman--2 More Than A Modem  Times New RomanV-- 2 p Elite 2864I $MM$c &1>JV`hnsvwvtpkd\SI>4,&!~ysni e$b)_.]5[<[D\J]P`UcYg\m^s_zszroofj^dW]QTMIK=J2K'MQV] d mv  $.:CLSY]`bcb`]YTMF=5.'!v8$     ~wpje`[XTRPNMMM^_bfmu~^^"$"55i8o;tMM~8M"M"$MM$.cMNM$MM$[pp[[$h~yqic]YVTSTVZ`fnx|vplhfeddegjmquz&8 7JJ__JJV7V77 7n7 $frMMf$   ` ` MM 8  * : u   c MM M A X co A $    ! !M M  M M  $!!!T!MG!M!$!!!M!M!f!MQ!M!8A!!!!!!!!!!!!!"""""'"/"6"="C"I"N"S"W"["^"a"c"e"f"f"f"e"c"~a"w^"p["jW"dS"^N"ZI"VC"R="O6"M/"K'"J"J"J"K"M"O!R!V!Z!^!d!j!p!w!~!!!!!!!t!l"e "`"]"\*"]4"`<"eD"lI"tN"P"Q"P"N"I"D"<"4"*""" ""!!!!!$~"""M~"M~"$S#### ##""""""""""""""t"l"e"`"]"\"]"^#` #d#h#m#t#z,#z*#p&#f #^#W#R#M"K"J"J"K"M"O"R"V"Z"_"d"i"p"v"~""""""""""""""""""""###"#'#+#-##$ A###U#U###U#U#`#`#MA#MA#--$ wYmwPm %  $    jY < Y  6   $   cF ) F  /  $ d99 0  $ ll%% l8  $ Yc Y/  $ y=[y ='  $ xz2\z 2( x $ y[y[y ' [ y$ m!O!z !\ z  !( O! m!$ Q$3$r#T#r## # 3$ Q$ --J$                       } y u r o m k j i i i j k m o r u| xw |r o k i g e d d d e e f h i k m p s v y |      | v p k f b ^ Z W T R P O N N N N O P Q R S T }V yX vZ s\ o^ la id gg dj am _p ]t [w Y{ W V T S R Q Q P P P P P Q Q R S T V W Y Z \ _ a c f h k n q u x |                           $ / G Gg g Q Q g /g / $                                                                ~ { x u s p n l j h g e d c c b b b c c d f g i l n q t w {      z u o j e a ] Z W T R P O N N N O P R T V Y ] ` d i m r w }                                                                    87$a z zz z z z z y x w u s q o m k h f c a ^ [ X T Q M J F B > ; 7 4 0 - * ( % #               a a zd z( ( ( ( ) * * , - / 1 3 5 8 ; > B F J N Q T W Z \ ^ _ a b c c d d d zd $  ~ ~  s ts t^ ^ ( |( |   8b$   y y y y y z z { | }                  ! !               } z x v t s q p o n m k j h f d b _ ] Z W T Q N K G D @ < 9 6 2 / , * ' $ "               ' ' ' ' ( ( ) * + - . 0 3 5 9 < @ D I M P S V Y [ ] _ ` b b c d d d d '  8b$Q                                                                          { x u q n k i f c a _ ] [ Y W U T S R Q Q Q Q Q f f f f g g h i j l m o r t x {                    f $ \ t tg g Q #Q #g \g \ $                     ! ' , 1 5 8 < > @ B C C C B A ? = ; 8 4 0 , ' "                    ~ { x u s p n l j h g e d c c b b b c c d f g i l n q !t #w ${ % & ' > > =z ;u 9o 7j 4e 0a ,] (Z #W T R P O N N N O P R T V Y ] ` d i m r w }                          ! $ & ( ) * + + + * ) ( & $ "                            87$          ~ | z x v t q o l j g d a ] Z V S O K G D @ = 9 6 3 1 . , ) ' % # "            m 1 1 1 1 2 3 3 5 6 8 : < > A D G K O S W Z ] ` c e g h j k l l m m m m 87$) B B g n t z    ~ | z x v t q o l j g d a ] Z V S O K G D @ = 9 6 3 1 . , ) ' % # "     | w q l e ) ) Bm B1 m1 q1 u1 y2 }3 3 5 6 8 : < > A D G K O S W Z ] ` c e g h j k |l xl tm pm km Bm $  F F  | <| <g g 1 D1 D    8D$                                         { w s o l i e b _ ] Z X V T R P O M L K J J I I I I  ^ ^ _ ` b e h k o t y                        ^ ^ $4 5 6 8 : = @ D H M R W ^ d k s {                                  { u o j f b ^ [ X V T S R~ Qz Qv Qs Rp Sm Tk Uh Wf Yd \b ^` a_ e] h\ l[ p[ tZ yZ ~Z [ [ \ ^ _ a d f i l o s w {   y r m g b ] Y U R O L J H G F zF sF lG fH `J ZL UN PQ KU GX D\ Aa ?e =j ;o :u :z : ; < > @ C F I M R W \ b h o v |                               { u q l g c _ \ Y V S Q O N M L L 4 8b$I     ! & + / 2 6 8 ; = > @ A B C C D E E F F F G H I J f f d b a ` _ _ ^ ^ \ \ [ [ Z Z Y X W V T S Q O M J H J M P R T V X Z [ \ ^ ^ _ ` `~ `{ `w `s _p ^m ^i ]f [c Za X^ W[ UY SW QU NS LQ IO EM @L <K 7J 2I -I 'I "I I ^ ^ #^ '^ ,_ 0_ 3` 7a :b =d ?e Ag Cj Dl Fp Fs Gw G{ G F F D C A ? = : 7 4 0 , ' #   ^  87$            } { y w t r o m j g d ` ] Y V R N J G C @ < 9 6 4 1 / , * ( & % # !          p 4 4 4 4 5 6 6 8 9 ; = ? A D G J N R V Z ] ` c f h j k m n o o p p p p $* + , . 0 3 6 : > C H M T Z a i q y                       | y v t r q o n ~l wk qi kh eg `e \d Xb Ta Q_ N] L[ JY IV HS GO GK GH HE IB J@ K= M; O9 R7 T5 W4 [2 ^1 b0 f0 j/ o/ t/ x0 |0 1 3 4 6 9 ; > A D H L P T T N G B < 7 2 . * ' $ !    x p i b \ V P! K# F& A* =- :1 76 5: 3? 1D 0J 0O 0U 1Z 2_ 4c 6g 9j <m ?p Cs Hu Mw Ry X{ ^} e l r x }                           { v q k g b ] Y U R O L I G E D C B B * $ D D     --$ o' ['>o[o$ p( G(*pGp$ p( <(p<p$ y1w01y0wy$ q)[ )q[q$ z2O2zOz$ "{z"34"!3!{!4"z""{$ $&&Y%;y%Y\%y%%&$&$ &<%%i%L%<i%%%&< --8D$        " & ) - 0 3 6 9 < > A C E G I K L N O P Q R R S S S S S R R Q P O N M K{ Jw Ht Fq Dm Bj ?g =e :b 7` 4^ 1\ .Z +X 'W #U T S R R Q Q Q Q  f f g h j m $p (s ,w /| 2 4 6 8 9 : : : 9 8 7 5 2 / , ) %        f f $   g g Q `Q `g g  8b$Q    < A F K O R V X [ ] ^ ` a b c c d e e f f f g h i j         ~ ~ | | { { z z y x w v t s q o m j h j m p r t v x z { | ~ ~      { x ~u ~q }n {k zi xf wc ua s_ q] n[ lY iW eU `T \S WR RQ MQ GQ BQ Q f >f Cf Gf Lg Pg Sh Wi Zj ]l _m ao cr dt fx f{ g g g f f d c a _ ] Z W T P L G C >  f  87$          "~ '| *z ,x /v 1t 3q 5o 6l 8j 9g ;d <a <] =Z >V >S >O >K >G =D <@ <= ;9 96 83 71 5. 3, 1) /' ,% *# '" #           m 1 1 1 1 2 3 3 5 6 8 : < "> #A $D $G %K %O %S $W $Z #] !` c e g h j k l l m m m m 8AQv Q{ Q R S S T V W X Z \ ^ ` c e h k n q t w {                                         { v p k f a \ W R N J F B > : 7 4 1 . + ( & $ "                    {" w$ t& q( n+ k. h1 e4 c7 `: ^> \B ZF XJ WN VR TW S\ Sa Rf Qk Qp Qv jv jm ke l^ nW pP sJ vE z@ ~< 8 5 2 0 . - - - . 0 2 5 8 < @ E J P W ^ e m v ~                      ~ z v s p n l k j~ jv $   / /   --'     w :#:0 f"9 x--"System-   0KLlL8()$F$!  c  s r- 8  #  i  8rl PcGP"l| Mi y #   y- Ms   | "  --87$OYhYh        OOYhhh8A #'+/37;>ADG J M O Q S U W X Y! [% [* \/ ]3 ]8 ]= ]B ]F \K [O [T YX X\ W_ Uc Sg Qj Om Mq Jt Gv Dy A| >~ ; 7 3 / + ' #                   ~ | y v t q m j g c _ \ X T O K F B = 8 3 / * % !                   % + 1 8 ? E K Q V [ ` d h k n p r s t t t s r p n %k +h 0d 5` 9[ =V @Q CK EE G? H8 H1 H+ G% E C @ = 9 5 0 + %  $ Y Y . YF Yv _ 9 4   5   Y$ Y Y B B         Y8b$$ $ Y< Y< d i n s w z ~          $ ) @ D H K O Q T W Y Y T S Q O M J G C ? "                                                    z u o j $ < f k o t x {                      | x t o k f < <  $IZ^bhouz      ! % ( + . 0 2 {3 u4 o5 i5 b5   Y ^ b f j n q s v y | ~     }{yvtqmjfa^ZZ 8 D ^ q _ _    D x J  Jx JJ$q Rq Xp ]o bm fk kh of rb v_ y[ {W ~R N I D > 8 2 , ' ~" { x t p k e ` Y S K D < 3 , $       ! & , 2 8 ? D H M Q U Y ] ` c f h j l n o p      } z v q m g a [ U N G ? ; 6 1 - ) % !                      % * / 4 9 > D I N S X ] b f j n r v y }          # ' + / 4 8 = E M T [ b h m s w | | v o i b Z Rq R$   V ; 3  )1   8    87$               ~ z v r n j f b _ [ X U R P M K I G ECA@??>>>>>VVVVWXYZ[]_bdg j n r v {   8  2 G    } >_ > O n Z O 8b$ >   !"!'!,!1!5!8!;!>!@!B!C!E!F!F!G!G!I!I!J!J!J!K!L!M!N!l!l!j!i!g!f!e!d!d!d!a!a!a!`!`!_!^!]!\![!Z!X!V!T!Q!O!L!O!R!T!W!Y!\!^!_!a!b!c!d!e!f!|f!xf!tf!pf!le!hd!ec!ab!^a![`!W^!U\!RZ!OX!MU!KS!HP!GM!EH!CD!A?!@9!?4!>/!>)!>#!> > U!U$!U)!U-!V2!V6!W9!X=!Y@![B!]E!_G!bH!eI!hJ!lK!pK!uK!yJ!~I!H!G!E!C!@!=!:!6!2!.!)!$!!  U 8 p!!!!""!>!>p!!!Z!!$0"""K"K">0">0"$"7#7#"">">"$ H###b#b###b#b#V#V#>H#>H#$#m$m$ $ $>#># 8D$ !!!&!,!2!8!>!C!H!N!R!W!\!`!d!h!l!o!r!u!x!{!|}!v!o!i!b![!T!L!E!=!5!-!%!!!! !!~!{!y!v!s!p!m!i!f!b!^!Y!T!P!K!E!@!:!4!.!(!!!!!  !!#!,!3!;!A!G!M!R!V!Z!]! _!a!b!*b!6b!Ca!N_!Y]!cZ!mV!uR!}M!H!B!;!4!,!#!!!  !$ !""k"k"!!!!$ "K#K#""C<#C<#$"$"H#H#"" $B B D F H K N R W #\ 'b +h .n 0u 2} 4 5 5 5 4 3 1 . + ( $                            | w s o l i f d c b a a a b c d f h j l o s v z ~                            ~ z v r p m k j i i i~ jw kp mj oe r_ u[ yV }S O M K I H H H I J L N Q U X ] b g m s z                                     ~ y u p m i f c a _ ] \ [ [ B $ 0!0!!!w!w!!!!!n n 08b$!n!0!0!!!!!!!"""" " " """""""""!"%"("+"."04"04"+2")1"'/"%."#-" ,",",")")")"("("'"&"%"$"#""" """"""""""!"$"&"'")"*"+","-"."."."."."-","+"*")"("&"$""" "}"{"x"w"u"s "q"p"o!n!n!n!n!n!!!!!!!""" " """""""""""" " """"!!!!!!!!$N"0h"0h"nN"nN"0 8 y"0"0"" #0'#0"n"ny"0""""$9#0#0#T#T#n9#n9#0 $%E &E &. %. %%%E $&&E ?&E ?&&&&&E *$a&E x&E x&z&{&}&&&E &E &&&# & & & & |&a&a&E $ 'E 'E '. -'. -'''-'-'''''E  87$*T *T * + + + + "+ (+ -+ 1+ 6+ 9+;+>+@+B+D+E+G+H+J+K+K+L+M+M+M+M+M+L+K+K+J+H+G+F+D+B+@+>+;+9+6+2+-+)+$++++++**T **++++ +#+&+)+++-+/+1+2+3+3+4+4+4+3+3+2+0+/+-+++(+&+"++++++*$ g+T +T +++T +T +++++g+g+T 8A,, , , , , , , ," ,& ,* ,. !,2 #,6 &,9 (,< +,? .,B 1,E 4,H 7,J :,L >,N B,P F,R J,S N,T R,V V,V [,W `,X d,X i,X n,X s,X w,W |,V ,V ,T ,S ,R ,P ,N ,L ,J ,H ,E ,B ,? ,< ,9 ,6 ,2 ,. ,* ,& ," , , , , , , , ,,,,,,,,,,,,,,,,,,,,,,,,,,,,|,w,s,n,i,d,`,[,V,R,N,J,F,B,>,:,7,4,1,.,+,(,&,#,!,,,,,,,,,,,,,-,-,.,/,1,3,6,9,=,A,F,K,P,V,\,b,i,p,v,|,,,,,,,,,,,,,,, , , , , ,& ,+ ,0 ,4 ,8 ,; ,> |,@ v,B p,C i,C b,C \,B V,@ P,> K,; F,8 A,4 =,0 9,+ 6,& 3, 1, /, ., -, -,*$,T ,T ,,,,,M-T g-T g-P-P-2 N-. L-* J-& H-# ,,,T $ -T .T .= -= - . .-- . .--T --7.@* %&&&%U AU // / / %/ e ee%$4R 4R R '>ssLa:-3<).aB 0 --"System-  <)-3 --"Arial-- 2 .E DTE/Computer -- 2  RS-232 or  -- 2 &  Printer Port--$p/^/^/s 0/020C0U0d0q0+y0B0w01101G1^1v111{1o1d1V1I1:1,11111111u1`1Mt17j1']1S18110_0'0///I/..i.0.---P--,,u,@,,,, ,7+M+a+w++++++ +)+6+C+P+[+g+q,z,,(,=,`,,,,y,o,f,P,;,1-- --A-T-h-~--t--|-^.^.t/tl$4/]/..]-]-|-~-h-T-@----  -,1,:,P,,2,,, , , , , , , , 0 0 0 0 0 0 0 0 0 0 0 0wz0Ky0Bq0*d0U0C0200//r/]-$ - s0 W/ / . . X. . $ 40GD-G .W.W.....//W/l$4s0 40FW/W//..W. . .W.W.J.J...J/J/W/W/J/J.J.JW.J .J .[W.[W...[.[.//[W/[W//..W. . .W.W. . ... / /W/W/ $- . .E-F- -$Z,,+6l+ga+nU+x@+$+ +*** *: *L *e *} + !+ ;+ X+ [+ c+ n+ {+ + + + + + + + + + + + , , ), =, Q, X, f, t, , , , , , ,z ,d ,,,,,,~m,x],y(,%,*,4,1, , , ,' +( +. +8 += +4 +/ +/ +6 +; +. +& +" +# + + + + +++,(,],y,2- $. X. X..-V$)+)+ ++++++++++++~+|+|+++++++z+u+o+m+l+l+m+q+ x+~++#+*+/+2+4+4+2+/- $...[.[ $//[W/[W/ $/ W/ W// $.... $/W/W// $. . .. $/J/W/W/J $.J.J..% .V.% .V.%..%.7.7%..%..%/V/%/V/%/V/%/6V/6 $.X.X.. $.X.X.[.[% .V. $.JX.JX..% .6V.6-8$\ jr r  K 5 qo a O ; "      g J j-  zn!c(W0M9F9FA?L9V7`55;Ha}onnA h r P}    ) K a r |    * |9 rF gN _T _    r   ?w ?5 K3 P1 U. [* `% c d c ` \ W P H 0    i "   LH L LLLLLvg_\a\Z]QbHk@x<:: 7 ? G K }R pW ]\ M` >f 9g .l p s w y          % / 9 @ PJ mL Q 0$   X     ) < D K N P O N J# E% >( >   - $ r   -$H q kq ] C -$B J  e  -$?( ?4 j6   e ? -V$)   X     ) < D K N P O N! J$ E& >) >6 J4 O1 T/ Z* _% b c b _ [ V O G /    i "   T K99 9  9  9  9  9 9999999999999999 9 !9!"9"#9#$9$%9%&9&'9'(9()9)*9*+9+,9,-9-.9./9/090292393494595696797898999:9:;9;<9<=9=>9>?9?@9@B9BC~9CD}9DE|9EF{9FG{9GHz9HIy9IJx9JKw9KLw9LMv9MNu9NOt9OPs9PQs9QRr9RSq9STp9TUo9UVo9VWn9WXm9XYl9Y[k9[\j9\]i9]^h9^_g9_af9abe9bcd9cdc9deb9efb9fga9gh`9hi_9ik^9kl]9lm\9mn[9noZ9opZ9pqY9qrX9rsW9stV9tuV9uvU9vwT9wxS9xyR9yzR9z{Q9{|P9|}O:}~N:~N:M;L;K;J<I<I<H=G=F=E>D>C?B?A?A@@@?A>B=B=C<D;E:E9F9G8H7H 6I 5J 5K 4K 3L 2M 1Q1T0W/Z.]-,,+*)(('&%$#"!   !""#$$%&&'(()*+, - - . / / 0112334567889::;<=>>?@@ABBCDDEFGHIIJKK-$-3<)<)-3-$%M_xL99z@LM$ LLL$-$-$-$-$ LL$ L L$L LF F 5  L -d$0>e L_ \[ pV |Q J F > 6 F      w g : ( ; Q d z    P mL PI ? 8 . $          x w r o -j 9f -"$* < i y        | f S =  \F  F H MH I MI L NL M NM O OO Q OQ S PS V PV Z QZ ] R] ^ R^ ` S` c Sc d Td g Tg k Uk n Vn p Vp r Wr t Wt u Xu x Xx y Yy | Y| Z Z [ [ \ \ ] ] ] ^ ^ _ _ ` ` a a b b c c d d e e f f g g h h i i j j k k l l l m m n n o o o p p q q r r s s t t u u v v v w w x  x  y  y z z  {  {  |  |  }  }  ~   ! ! # # % % & & ) ) * * - - . . 1 1 2 2 4 4 6 6 8 8 ; ; > > ? ? B B C C E E H H I I L L P P S S T T V V Y Y Z Z ] ] ` ` a a d d f f g g j j n n q q s s t t w w x x { { ~ ~                    ~ } | | { { z y x x w w v u t t s s r q q p p o n m m m l l~ l| k{ kz ky jx jw jv jt is ir iq hp ho hn gl gk gj gi fh fg ff ed ec eb  da  d`  d_  d^  c\  c[  cZ  bY bX bW aV aT aS  aR  `Q  `P  `O  _N  _L  _K  ^J  ^I  ^H  ^G  ]F  ]D  ]C  \B--% \ Q   F MF     A \  %    %T` `w i j h  %*     %8 3~ *t "o %~  %)    8  %K Au 7i  %Ce Ot U Y % w c Z ~V %c\ kh qv v x %z j g h> mM %d P H J3 PI %  q {_ pW  %? V o  % | ` N F %L Z p    % y } " ( %   %   %/     %= +   - A %   8 M  %   +  %&    %O > 2 0( 2: -($s     < I \       ' h { s j$3  ( 6 E       Z i y    ' 5 C       ] j v    ( 9 B          !  g u    $$      g i v    " 2 ?   $ J Y d 4 / ;        $$   p c       5 7 )   $   B Q R 0 , : }      $      A ; ; X p n ^   "$)     Z M ?       ; $      $ # 0 u  y m  - $r J   -$  j7 ?5 ?w -$   ? e -0$w`M@:x::=@wHjQaZ\b[[^ft-H$";@EHLNOPPP?O8L2G-C*<)6&&() + -16:?  $?;?;--%;;??;;- $LL-%. .-- c 6 -%S S  %b b ! !--f#.c-%c.c.e#e#c-"$." -% " #." #." " " -"# !-%! # #"!"! %!!#!--M!6" !-%! 5" 5"L!!L!! -=!# U#-%U# # # ? @ A A B B B B B A A @ ? > < }; y9 u7 q5 m3 i1 f. c+ `) ]& Z" W U S Q O M L K I I H G G G G G H I I K L M O Q S U W Z ] ` c f i m q u y }               y t o k g d a _ ] \ \ \ ] _ a d g k o t y# % ' ( ) ) ) ( ' % #                             $z   j  + J J  J J c JK Jz $ >   V V   V V ` ` J> J> 8b$ J     # ( , / 3 5 8 : ; = > ? @ @ A B B C C C D E F G c c a _ ^ ] \ \ [ [ Y Y X X W W V U T S Q P N L J G E G J M O Q S U W X Y [ [ \ ] ] ] |] x] t\ q[ n[ jZ gX dW bU _T \R ZP XN VK TI RF PB N= M9 L4 K/ J* J$ J J J _ _ _$ _) `- `0 a4 b7 c: e< f> h@ kA mC qC tD xD |D C C A @ > < : 7 4 1 - ) $     _ $I        $ ) - 0 3 6 9 ; < = > > > = < ; 9 6 4 1 - ) $                  ! # % & ' ( ( ( ( ' & % $ "             8  : :& m  : :W <  :- J e - J$& & % $ "        # % & ' ( ( ( ' % #                                        ! # $ % = < : 8 6 2 / + & "                                                       " % ( + - 0 2 4 6 8 9 : ; < = > > > > = ; 9 6 3" /( +, &1 !4 7 : < = > & $ W :o :o   : :   o o W W : 87$F!`!`!S!S!S!S!S!R!Q!P!N!K!I!G!E!C!@!=!;!8!5!1!.!*!'!#!!!!!! !!!!!!!!!!!!!!!!!!!!!F!F!`!<`!!!!!!!!!!!!! ! !!!!! !$!(!+!.!1!3!5!7!8!:!:!;!<!<!<`!< 8 !!!kI"k]"z"2""!"T#"A"T"T8b$""""R"R"R"R"R"S"S"T"U"W"X"["]"`"c"g"l"q"""""####!#!##########i#f#b#_#\#Y#V#T#Q#O#M #L #J #I#G#F#E#D#B #@ #>#<#9#7#4#1#.#+#(#$#!##### # ####### # ####""""""""""""""""""""""" " "###"#"'"*"-"0"3"5"7"8"9":";"<"<"<"<" 8 %#@#U#k#k###m#%#]#T|##T]#T$#`$`$$$##$q$$$$$q$q$$ $%%%%L%L%5%5%%%$$$%"&"&%%%% 8D$b"d"d"d"c"c"b"`"_"]"["X#V#S #O#L#H#D#@!#;$#7'#2*#,-#'0#!2#4#6#7#9#:#;#;#<#<#<#<#;#:#9#8#6#5#3#0#.#+#(#%#"#}#y#u#q#m#j #g#d#b"`"^"\"Z"Y"X"X"W"Wb"Wb"d"v"v"x"z"}"""## ############ ##"#)"/"4"9"<"?"A"C"C"C"v"v$ #d#d#x $x $WQ#WQ#x#x#d$ =$d%d%Ba$Ba$$$a$a$x$x$W=$W=$d $!!!!!""" """"#"*"2":"C"K"S"["b"h"o"t"y"~"""""""""""""""{}"xy"ut"ro"pj"nd"l^"jX"hQ"gI"eC"d<"b6"a1"_,"^("\$"Z!"Y"W"T"R"O"K"G"C"@"<"9"6"4"1"/!"-$"+(")+"'/"&3"%7"%<"$A"$F"$J"%O"%S"'W"(["*^",a".d"1f"4i"7j";l"?m"Cn"Gn"L"L"E">"8"2"-}"'y"#u"p"k"e"_"X"Q"J"B":"3","%""""" """&"+"0"6!;!A!G!N!S!X"]"a"e "h "k"n"q"s""u("w/"y6"{>"}D"J"P"U"Z"^"b"f"i"k"n"p"q"r"s"s"s"r"q"p"n"l"i"f"c"_"["W"R"M"H"B"="8"3"."*"%""""""""""""!$ "7#7#""|,#|,#e"e"+5#+5#""8b$T#T#n#n################################################}#|#z#y#w#v#u#t#r#p#n#l#i#g#d#a#^#[#X#T#Q#M#I#E#A#=#:#6#3#0#,#*#'#$#"# ###########T#n#*#*#*#*#+#+#,#-#.#0#2#4#7#:#=#A#E#J#N#S#W#Z#]#`#c#e#g#h#i#j#k#l#l#ln#ln#*$$$$$$ 8 .$I$^$$$$$v$.$f$$/$f$$$i%i% % %$$ $X'''q'q'6X'6X'$'''6'6'*$(-(-(X/(\0(_2(b4(e(((6(6(((((1(6(6($ (L)L)((B)B)((LJ)LJ)6(6( 87$,,,,,,,,,,,,,,,,,,,,,,-----}-y-u-q-n-j-g,c,`,],[,X,V,S,Q,O,M,L,J,H,G,F,E,E,E,E,E,E,,,[,[,[,[,\,],],_,`,b,d,f,h,k,n,q,u,y,},,,,,,,,,,,,,,,,$ -5-5-----E-E-5-5-E-E-8A--------------------------.. .....#.(.,.1.5.:.>.B.E.I.M.P.S.W.Z.\._.b.d.f.h.j.l.m.o.p.q.r.r.s.s.s.s.s.r.r.q.p.o.|m.xl.tj.ph.lf.hd.db.a_.^\.[Z.XW.US.RP.PM.NI.LE.JB.H>.G:.F5.D1.D,.C(.B#.B.B.B.B.C .D.D.F-G-H-J-L-N-P-R-U-X-[-^-a-d-h-l-p-t-x-|-------------z-t-o-j-f-b._.\ .Z.X.W.W%.W+.X1.Z7.\<._A.bF.fJ.jN.oQ.tT.zV.X.Y.Z.Z.Z.Y.X.V.T.Q.N.J.F.A.<.7.1.+.%.... ...-----------*$...g.k.n.q.t///E/E///...E.E.$ B///Z/Z///Z/Z/[/[/EB/EB/--b0+)- %//@@% " "11F1F1F%1_ _ Z tt?Y%4u4u""A"A--@" !A -% "5 "% !: !--'YfitsIn some cases, there is a need for the termianting resistors being connected in the 2864I. This can be indicated, but not exclusively, by the fail of the test sequence number 2 of the %c.c."'Idk|}34JK 12LM'59~./KL\]yzcd45xy(,(,0U67ST78W d e ~  !!!!/!0!2!3!L!M!b!c!|!}!!!!!!!!!!!!!""""""7"8"I"J"c"d"""""""^"""""""R$f$%%3%5%A%G%\%%%%%8&:&\&''2'3'_'`'y'z'''''''((&('(@(A(w(x((((((())())))))))***,,?,-----...b.d.......//Q1X1v1{11111(, `X133444\5]5v5w55555555555!6"6;6<6Z6[6t6u6666677*7+7Q7R7k7l788'=I=>>>>>>0?1?J?K??????=@>@j@k@l@@@@@@@@@@@@@@@@@@@CAFAGAJAAAAx(,XAAAAAABBgBjBkBmBsBtBBBBBBBCCCC6D9DoDyD|D~DDD$E'E]EgEkEmEnEoEsEtEEEEEEEFFFFFFGGGGGG/H6H:HDHHHIHMHNHQHRHHHHHHHHOIVIZIdIhIiIpIqIsItIJ%J)J*J1J2J7J8JJJJJJJdJJJJJK)K0K2KKKKKKK9LLELFLLLLLLLM MMM8N;NoNqNNNNOOOXPYPxPyPPPPPQQQQRRkSnSHTITvTTTTTUVVVVWWWW@X\XYYCYDYcYdYvYZZ[[[[[MT*X[^^ccccc*d,d2d-f@gEgHg]ghhhiiiijj,j-j k k%k&klm]_cf՟ן۟ޟ8:>A(,478(,_89ա֡ء١ڡݡ"#'+ZȢ̢"fyΣRiؤ٤-3489ͥ +-RTkmܦަ(*MOrtڧܧ)+WX̩gjm}Ӫtb /02>@CDF^cpruvxĮʮخڮݮޮ"#%=O]_bce}ίүدlqDZɵεеյx} mv| UZcIN%h|478u{|24FHdfz|9;^`|2z+?R^x$,]OS0u|J[-Qhr-1CEIK^`dg` NRUm_`9:S"$8:ac7:;=cetyz|8FJV*45DFGaGIK]8q%'*-EKY[^ay!$,?OSYAHJOUVvuz|qva%joXh >BYZmn()+KMrt#%HJmoOQxCGwx  (,^ ShmZm $-AL #4FQ* , 3 < u w | }              z~@A,1HMae!SVj   ^ EVG]_`AF]by~ "(+34O '-EKci8C7c f   !!!!%")"-"2"z""""$$%%G& ^G&K&L&''')(=(R(a(b(((((()))^*w*u,z,,,,-"-C.m.p.//b122233333344 44^4h4j4445 5S5X5j55<6?6A6G6k6n6p6v666 7"7K8O8`8888z9999:: :::(,T:::;;;;;>;?;W;X;Y;;;;;;;<<H<J<K<j<k<s<$=%===>=j=k=======_>`>x>y>>>>>??*?+?w?x???????@@@@@@ A A%A&A'AFAGA_A`AaAAAAAABB1B2B3BBBBBBBZBB CC3C7CDGgGGGGGGGGGGGG1H6HrHtHHHHHHKK8L:LcNdNPPPPPR SdTTUU9U;UAU~UUUUUVVWWWWX X)X,X-X2XXNXbXeXiXjXtXvXXXXYSYwYzY|YZZZZ[[[([\,(, Z\\\]]]:];]]]g] ^'^(^/^^^_3_L_Q_R_NbRbbbbbg;ggggggggghhhhnnnnnnnnnn6o9oeojomopoooppapeppqIqMqqq r rsssstt2t3t^t_tttttttNuZu   (,XZutuxuuuvvxxVxWxpxtxyy1y5y} }}~JMNdfg+zՂׂ]wu5Bho҅ԅ!Έ҈Ո׈  &'UV\]     ,(O֊׊؊ي   &'589=>?AFLM[^_cdeflvyz{݋ދ/CŽÎߎ     Wߎ#&(.@CEKhkmsÏɏ"$(*SX8DQUޖߖ()^_xyҗӗ  IJcdƘǘ12KLҙ \(,\\^_~ޞߞ TY\ady}.1kn78KLOQRYZyzƦȦèŨDPos $$(K *+/RVlrɯί:;2;>;?;@;A;V;x;~;;;;;;;;;;;<<<<<,<L<Z<]<^<d<p<q<s<u<v<<<<<<<Q"$&GIKMx-OkIdzӨ痗%0%%%2R&lb %%%E% l M7z|}!4X3Jc}!AM L v  ? e   + 6 R r  # . [ % 1 N t ! % X ! % X ! % X !%P!@`!Ml1Lr~'579vxgi|~.sſ%L%%%%%%%%%2 4  X ! % X ! % X ! % X !4$\cx6   ! 1 G W Y d !!!üaa"l3HT 4  2"l3HT 4    2%%%%L%L%%L&!!2!O!Q!S!b!!!!!!!!!!!"":"<"I"f"h"r"t""""""""""""####&#1#<#G#I#P#Y#b#k#m#x######P$R$랙%%"l3HT 4    2"l3HT 4  2:R$f$h$%%%%%%%8&:&\&^&'_'''&(w(()S)c)))):*<* +"+,,?,A,--`.b....d/g///3000001Ǿ%%8%8 %L8%%%%%Ex%%%%%%L%%%3311114444\555!6Z667Q7777789:;; <%='=I=K=}>>>>0???????ļ󲩠܈܃܈zsmg%%%#x%%%Lx%Lx%Lx%=Lx %Lx%L%L %Lx%%%%%e %%x(? @"@;@=@@@i@k@@@@CAAAgBBC|DkEEFFF~GG/H9HGHHHOIYIgIJ(JJJJKK9LLMMNOVPXPPPPQҺʲʲҪʲҲʚҲڒ%L%0%0%0%0%0%0%0%0%0%%%%%%%%3QQRkSFTHTKTtTvTTTTTVVVWWWW>X@X\X^XYYAYCYvYxYZZ[[[[^^`нЖzrme%| %%|%%h%h%s%%M`x%]`x%`%`%`%%%%%-%0%0%L%L&``aaVbXbcccc,d0fg@g]g_g[h]hhhhhhhijjj kZl\llllmm;;;;;H<J<s<u<"=$=V=j===/>_>>>>>?`?w????@@@@ AFAAڷ%x%%%3%%*%%%x%%%%L%]Ex%AAABBrBBBB C CC3C5C7CCC DDEEBGDGgGiGGGHHHJJKK8LLLMMNN"P$PPPPPPPPQQRR SSTT9U;UŽ%%L%L%% %x% %x%%%%%%x%3%:;UUWWWWWWX,XdXXXY1YQYSYYYZ[Z[f[\\ ^1^3^^__3_5___bbbbbTeVegg;g=gggh5h7h𮨢% %x% %%% %%%%2x%%]x%%x%%x%%%%-x%27hiiZk\kXmZm%n'nnnnnn5oeolooooppqqqq rDrrrssst2t^ttttu uNuZutuvuxuzv|vwwxxyyyy%%%%%2 % % %%x%%%%%x%%%%%7y1y3y5y`z.{{||}}}}~~CE[]su)+7Xhz|Ȃʂӂ߂ҿҹmml'  l'   6%%%0%%L%L%Ex%%%&su4Dˆ͆̈ΈY#npŽߎ"?ɿδݬΓ{vqk` %xp%%%L%L%L%Ex%0%R&%R&%%&x %x%%%%%l'   %?g!# 357DQSUޖ^I1_a  \^vCsߝſ񥟙񔋷%L%Ex%%%%%%L%L%x%%%%%{%%% %p3Wܞޞ "DFQYai{}ĠɠΠ,.16;@iknsx}Чrrrrr(l?vF   (l?vF      8 %%%%%L,24OQwyèŨ35X[jlo~|u^ulp  %x%%%%%%%%%%|%(l?vF      8 !~ͪϪҪ7:IKNTVY^`crtvƫȫ˫ګܫ߫+ܣܣ܌lp  lp  %x%lp  8 lp  7+-0?ADPoqs¬Ь֬ج۬slf_Y6l"l3ph '"l3p%h %'%%%%%lp 8 lp  ۬ !(*-5IPRU]qxz}ȭʭͭխ'̮ҮԮخܮ-359@ïh 'h '"l3ph 'Gï!%*257;@ORTX]ehjns{~İǰɰͰҰڰݰ߰ݱ󠘐%0%0"l3p"l3ph '3   s<u<<<< %x,%%1 characterASCIIjij>  F A hxISDN daughter board's power-on selftest. (Please refer to Chapter 15 Diagnostics) To connect the terminating resistors inside the 2864I, please open the top cover of the case and unplug the ISDN daughter board. In the neighborhood of the RJ-45 socket, there are two jumpers labeled JMP1 and JMP2. Both of the jumpers should be CONNECTED in order to make a proper impedence termination. nhowever, . 1 U $,Y6>YDMUMZ!fEi ?NNWW Z)Z b,bj9jjjkkmm n$n,Ff51QV:v:+;D;y;;;;%<><l<<<<====>2>>>?3????@C@c@;ATAAAAAGB`BBBCCgh;hUhyhh $Smӗ-Gfؘ!;XrӛSs  9999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999 #&1!!!PostScript PrinterLPT1:pscriptApple LaserWriter Plus UD[ od,XZeart Windows.cccv,5 ,xbbcccddidjdkdHeLegeveeeeeeeeeeeee ff!f(fPflfxfyfzf{f|ffffffffffgg,g0gRVlrɯί:;2;<>;?;@;A;V;x;~;;;;;;;;;;;<< <x <<x<<<,<Z<]<^<d<p<e.fg]hhh<  "h+E,c%)" ^Bĕ>H" Elite 2864I user's guide rev. 1.2 calvin ma etron-user