LEADING EDGE PRODUCTS, INC. MODEL D2 Processor 80286 Processor Speed 8/10MHz Chip Set Zymos Max. onboard DRAM 1MB Cache None BIOS Leading Edge Dimensions 330mm x 330mm I/O Options Floppy drive interface, parallel port, serial port NPU Options 80287 [Image] CONNECTIONS Purpose Location Purpose Location Parallel port CN1 Speaker CN4 Serial port (25 pin) CN2 Power LED & keylock CN5 Floppy drive interface CN3 Keyboard connector CN6 USER CONFIGURABLE SETTINGS Function Jumper Position » Floppy drive interface enabled J7 Closed Floppy drive interface disabled J7 Open » Floppy drive interface address J8 pins 2 & 3 select primary closed Floppy drive interface address J8 pins 1 & 2 select secondary closed » BIOS select 1 wait state J25 pins 2 & 3 closed BIOS select 0 wait states J25 pins 1 & 2 closed » CPU speed select 10MHz J26 pins 2 & 3 closed CPU speed select 8MHz J26 pins 1 & 2 closed » Monitor type select monochrome J27 pins 2 & 3 closed Monitor type select color J27 pins 1 & 2 closed » Factory configured - do not alter J28 pins 2 & 3 closed DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 J23 J24 640KB (16) 41256 (16) 4164 NONE pins 2 & pins 2 & 3 3 1024KB (16) 41256 (16) 41256 NONE pins 2 & pins 1 & 3 2 1152KB (16) 41256 (16) 4164 (16) 41256 pins 1 & pins 2 & 2 3 Note:Pins designated should be in the closed position. SERIAL PORT CONFIGURATION COM1 COM2 IRQ J5 J6 » COM1 Disabled 4 pins 1 & 2 pins 1 & 2 closed closed COM1 Disabled 3 pins 1 & 2 pins 2 & 3 closed closed Disabled COM2 3 pins 2 & 3 pins 2 & 3 closed closed Disabled COM2 4 pins 2 & 3 pins 1 & 2 closed closed Disabled Disabled N/A pins 1, 2 & N/A 3 closed PARALLEL PORT CONFIGURATION LPT1 LPT2 IRQ J3 J4 » LPT1 Disabled 7 pins 1 & 2 pins 1 & 2 closed closed LPT1 Disabled 5 pins 2 & 3 pins 1 & 2 closed closed Disabled LPT2 5 pins 2 & 3 pins 2 & 3 closed closed Disabled LPT2 7 pins 1 & 2 pins 2 & 3 closed closed Disabled Disabled N/A N/A pins 1, 2, & 3 closed