TEKNOR INDUSTRIAL COMPUTERS, INC. TEK-AT4L PLUS Device Type Single board computer Processor 80486SX/80486SX2/80486DX/AM486DX2/80486DX2/AM486DX4/ 80486DX4/AM 5X86 Processor 25/33/50(internal)/66(internal)/75(internal)/100(internal)MHz Speed Chip Set VLSI 82C486 Maximum 128MB (EDO & SDRAM supported) Onboard Memory Cache 128/256/512/1024/2048KB BIOS Unidentified Dimensions 341mm x 119mm I/O Options Floppy drive interface, IDE interface, parallel port, PS/2 () mouse interface, serial ports (2) [Image] CONNECTIONS Purpose Location Purpose Location IDE interface J1 Power connector J5 Floppy drive interface J2 Serial port 1 J6 Front panel connector J3 Parallel port J7 PS/2 mouse interface J3A Chassis fan power J10 Serial port 2 J4 USER CONFIGURABLE SETTINGS Function Label Position Boot from flash SW1/pins 1 & Closed 2 Boot from drive SW1/pins 1 & Open 2 Serial port select for VT100 SW1/pins 3 & Closed download COM2 4 Serial port select for VT100 SW1/pins 3 & Open download COM1 4 Display mode select VT100 SW1/pins 5 & Closed 6 Display mode select standard SW1/pins 5 & Open 6 Download mode select remote SW1/pins 7 & Closed 8 Download mode select normal SW1/pins 7 & Open 8 » Factory configured - do not SW2 Unidentified alter » Power fail detection W7 Pins 1 & 2 closed Low battery detection W7 Pins 2 & 3 closed » Vbatt disabled W10 Open Vbatt enabled W10 Closed » IOCHRDY signal to IDE W11 Open interface disabled IOCHRDY signal to IDE W11 Closed interface enabled » Watchdog timer enabled W12 Closed Watchdog timer disabled W12 Open » Power monitoring disabled W13 Open Power monitoring enabled W13 Closed » Flash BIOS write enabled W14 Closed Flash BIOS write disabled W14 Open » BIOS write select EPROM W15 Open BIOS write select flash W15 Closed » Teknor BIOS extension W16 Open enabled Teknor BIOS extension W16 Closed disabled » PS/2 mouse enabled W19A Closed PS/2 mouse disabled W19A Open » Monitor type select color W22 Open Monitor type select W22 Closed monochrome Parallel port IRQ select W25 Pins 1 & 2 closed IRQ5 Parallel port IRQ select W25 Pins 2 & 3 closed IRQ7 SIMM CONFIGURATION Size Bank 0 1MB (4) 256K x 9 4MB (4) 1M x 9 16MB (4) 4M x 9 32MB (4) 8M x 9 SIMM CONFIGURATION Size Bank 0 Bank 1 1MB (1) 256K x None 36 2MB (1) 512K x None 36 2MB (1) 256K x (1) 256K x 36 36 3MB (1) 512K x (1) 256K x 36 36 4MB (1) 1M x 36 None 4MB (1) 512K x (1) 512K x 36 36 5MB (1) 1M x 36 (1) 256K x 36 6MB (1) 1M x 36 (1) 512K x 36 8MB (1) 2M x 36 None 8MB (1) 1M x 36 (1) 1M x 36 9MB (1) 2M x 36 (1) 256K x 36 10MB (1) 2M x 36 (1) 512K x 36 12MB (1) 2M x 36 (1) 1M x 36 16MB (1) 4M x 36 None 16MB (1) 2M x 36 (1) 2M x 36 17MB (1) 4M x 36 (1) 256K x 36 18MB (1) 4M x 36 (1) 512K x 36 20MB (1) 4M x 36 (1) 1M x 36 24MB (1) 4M x 36 (1) 2M x 36 32MB (1) 8M x 36 None 32MB (1) 4M x 36 (1) 4M x 36 CACHE CONFIGURATION Note: The location of the cache is unidentified. CPU SPEED SELECTION Speed W21 25MHz Pins 1 & 2, 3 & 4, 5 & 6 closed 33MHz Pins 3 & 4, 5 & 6 closed 50iMHz Pins 1 & 2, 3 & 4, 5 & 6 closed 66iMHz Pins 3 & 4, 5 & 6 closed 75iMHz Pins 1 & 2, 3 & 4, 5 & 6 closed 100iMHz Pins 3 & 4, 5 & 6 closed CPU TYPE SELECTION Type W17 W18 W19 W26 80486SX Open Pins 1 & 2 Open Open closed 80486SX2 Open Pins 1 & 2 Open Open closed 80486DX Pins 1 & 2 Pins 2 & 3 Pins 1 & 2 Open closed closed closed AM486DX2 Pins 1 & 2 Pins 2 & 3 Pins 1 & 2 Closed closed closed closed 80486DX2 Pins 1 & 2 Pins 2 & 3 Pins 1 & 2 Open closed closed closed 80486DX2 (WB) Pins 1 & 2 Pins 2 & 3 Pins 1 & 2 Open closed closed closed ODP486 Pins 1 & 2 Pins 2 & 3 Pins 2 & 3 Open closed closed closed 80486DX4 Pins 1 & 2 Pins 2 & 3 Pins 1 & 2 Open closed closed closed AM486DX4 Pins 1 & 2 Pins 2 & 3 Pins 1 & 2 Open closed closed closed 80486DX4 (WB) Pins 1 & 2 Pins 2 & 3 Pins 1 & 2 Open closed closed closed AM 5X86 Pins 1 & 2 Pins 2 & 3 Pins 1 & 2 Closed closed closed closed CPU VOLTAGE SELECTION Voltage W27 3.3v Open 5v Closed BUSCLK SIGNAL SELECTION Speed W20 16MHz Pins 2 & 3 closed 25MHz Pins 1 & 2 closed 33MHz Open DMA CHANNEL SELECTION Channel W23 W24 1 Pins 1 & 2 Pins 1 & 2 closed closed 3 Pins 2 & 3 Pins 2 & 3 closed closed SERIAL PORT 2 SELECTION Setting W1 W2 W3 W4 W5 W6 RS-232 1 & 2 1 & 2 Open Open 1 & 2 1 & 2 RS-485 2 & 3 2 & 3 Closed Closed 2 & 3 2 & 3 Note: Pins designated should be in the closed position. EDOUT SELECTION Setting W8 EDOUT left to software Open EDOUT to pin 29 & ground to pin 17 Pins 1 & 3, 2 & 4 closed EDOUT to pin 17 & ground to pin 29 Pins 1 & 2, 3 & 4 closed Note: The above listed pins are located on J2. HDOUT SELECTION Setting W9 HDOUT left to software Open HDOUT to pin 33 & ground to pin 27 Pins 1 & 3, 2 & 4 closed HDOUT to pin 27 & ground to pin 33 Pins 1 & 2, 3 & 4 closed Note: The above listed pins are located on J2.