DTK Computers Technical Information Sheet for PTI-208A S=shorted, O=open DIP switch 1=on 0=off Switch setting for EGA as Primary Adapter Type of adapter attached. 1 2 3 4 EGA Monochrome CGA -------------------------------------------- 1 0 0 1 Color(40x25) Secondary None 0 0 0 1 Color(80x25) Secondary None 1 1 1 0 EGA Emulation Secondary None 0 1 1 0 EGA HiRes Secondary None 1 0 1 0 Monochrome None Secondary 0 0 1 0 Monochrome None Secondary Switch setting for EGA as Secondary Adapter Type of adapter attached. 1 2 3 4 EGA Monochrome CGA -------------------------------------------- 1 1 1 1 Color(40x25) Primary None 0 1 1 1 Color(80x25) Primary None 1 0 1 1 EGA Emulation Primary None 0 0 1 1 EGA HiRes Primary None 1 1 0 1 Monochrome None Primary 0 1 0 1 Monochrome None Primary JP1:Pin 2 Interface JP3:EGA Address 1-2 S EGA monitor 1-2 S 3XX 2-3 S CGA monitor 2-3 S 2XX (Not supported) J4:Feature Connector <1> GND <17> FEAT1 <2> -12V <18> BLANK <3> +12V <19> FEAT 0 <4> J1 <20> FC1 <5> J2 <21> FC0 <6> G'OUT <22> G'/I <7> R'OUT <23> B'/V <8> B'OUT <24> HIN <9> ATRS/L <25> VIN <10> B'OUT <26> 14MHz <11> G OUT <27> Internal <12> G <28> EXT OSC <13> R' <29> V OUT <14> B <30> H OUT <15> R <31> GND <16> R OUT <32> +5V JP1:Light Pen Interface Printer Port <1> Light Pen Input JP3 JP4 JP10 Function <2> Not used S S O LPT1 <3> Light Pen Switch O S S LPT2 <4> Ground X O X Disabled <5> 5 volts <6> 12 volts