SEAGATE TECHNOLOGY, INC. Customer Technical Support FAX Network +1 408 438-8137 Customer Technical Support Bulletin Boards (300-9600, 8-N-1) /----------------------------------+---------------------------------\ | United States +1 408 438-8771 | United Kingdom +44 628 478011 | +----------------------------------+---------------------------------| | Germany +49 89 140-9331 | Singapore +65 227-2217 | \----------------------------------+---------------------------------/ (C)opyright 1991 ST-4702N (94181-702) Wren 5 SCSI Power #=============================# /---------\ =====P=W=A======#:SCSI:Cable:::::::::::::::::1#=# 0 0 0 0 #== /-\ \=============================/ \-5-G-G-12/ |o|x o o o o o(o) *-------1 *-------1 *-------1 +o+o o o o o o(o) \-------/ \-------/ \-------/ \-/ 4 2 1 Terminator SIPS (see note below *) | --+-- | | | | | | | \-Reserved (some PWA's do not have these pins) | | | \---Parity check enable | | \-----Motor Start option enable | \---------Drive ID's, ID 0 (none) if only SCSI device \---------------Terminator power from Drive (vertical) Terminator power from Bus (lower horizontal) * Note: If you have #77701215k silk-screened near the 50-pin SCSI cable connector, the pin-1 for the 3 terminating resistors is away from the DC power connector. ST-4702N 94181-702/M WREN 5 FH UNFORMATTED CAPACITY (MB) ________________702 FORMATTED CAPACITY (xx SECTORS) (MB) _____601 AVERAGE SECTORS PER TRACK ________________50 ACTUATOR TYPE ____________________________VOICE COIL TRACKS ___________________________________23190 CYLINDERS ________________________________1546 HEADS ____________________________________15 DISCS ____________________________________8 MEDIA TYPE _______________________________THIN FILM RECORDING METHOD _________________________ZBR RLL (2,7) TRANSFER RATE (mbytes/sec) _______________1.5-2 SPINDLE SPEED (RPM) ______________________3,600 AVERAGE LATENCY (mSEC) ___________________8.33 BUFFER ___________________________________32 Kbyte Read Look-Ahead, Non-Adaptive, Single-Segmented Buffer INTERFACE ________________________________SCSI TPI (TRACKS PER INCH) ____________________1280 BPI (BITS PER INCH) ______________________26000 AVERAGE ACCESS (ms) ______________________16.5 SINGLE TRACK SEEK (ms) ___________________3 MAX FULL SEEK (ms) _______________________39 MTBF (power-on hours) ____________________100,000 POWER REQUIREMENTS: +12V START-UP (amps) _4.5 +12V TYPICAL (amps) __1.6 +5V START-UP (amps) __1.0 +5V TYPICAL (amps) ___0.7 TYPICAL (watts) ______21 MAXIMUM (watts) ______59 BUFFERED STEP PULSE RATE (micro sec) _____ WRITE PRECOMP (cyl) ______________________N/A REDUCED WRITE CURRENT (cyl) ______________N/A LANDING ZONE (cyl) _______________________AUTO PARK IBM AT DRIVE TYPE ________________________0 or NONE ZBR = Zone Bit Recording = Variable sectors per track Already low-level formatted at the factory. Seagate reserves the right to change, without notice, product offerings or specifications. (6/26/90)