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