TEKNOR INDUSTRIAL COMPUTERS, INC.
TEK-AT4
|
Device Type |
Single board computer |
|
Processor |
80486SX/80486DX/80486DX2/80486DX4 |
|
Processor Speed |
25/33/50(internal)/50/66(internal)/75(internal)/100(internal)MHz |
|
Chip Set |
VLSI 82C486 |
|
Maximum Onboard Memory |
16MB |
|
Cache |
Unidentified |
|
BIOS |
Unidentified |
|
Dimensions |
178mm x 119mm |
|
I/O Options |
Floppy drive interface, IDE interface, parallel port, serial ports (2) |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
IDE interface |
J1 |
Serial port 2 |
J4 |
|
Floppy drive interface |
J2 |
Power connector |
J5 |
|
Chassis fan power |
J2A |
Serial port 1 |
J6 |
|
Multifunction connector |
J3 |
Parallel port |
J7 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
|
Factory configured - do not alter |
SW1 |
Unidentified |
|
|
Boot from flash |
SW2/pins 1 & 2 |
Closed |
|
Boot from drive |
SW2/pins 1 & 2 |
Open | |
|
|
Serial port select for VT100 download COM2 |
SW2/pins 3 & 4 |
Closed |
|
Serial port select for VT100 download COM1 |
SW2/pins 3 & 4 |
Open | |
|
|
Display mode select VT100 |
SW2/pins 5 & 6 |
Closed |
|
Display mode select standard |
SW2/pins 5 & 6 |
Open | |
|
|
Download mode select remote |
SW2/pins 7 & 8 |
Closed |
|
Download mode select normal |
SW2/pins 7 & 8 |
Open | |
|
|
Power detection select power failure |
W1 |
Pins 1 & 2 closed |
|
Power detection select low battery |
W1 |
Pins 2 & 3 closed | |
|
|
SRAM battery backup select no battery |
W2 |
Open |
|
SRAM battery backup select vbatt |
W2 |
Closed | |
|
|
IDE interface enabled |
W3 |
Open |
|
IDE interface disabled |
W3 |
Closed | |
|
|
Watchdog timer enabled |
W4 |
Closed |
|
Watchdog timer disabled |
W4 |
Open | |
|
|
Power monitoring disabled |
W5 |
Open |
|
Power monitoring enabled |
W5 |
Closed | |
|
|
Flash BIOS installed |
W6 |
Closed |
|
Flash BIOS not installed |
W6 |
Open | |
|
|
BIOS type select EPROM |
W7 |
Open |
|
BIOS type select flash |
W7 |
Closed | |
|
|
Teknor BIOS extension enabled |
W8 |
Open |
|
Teknor BIOS extension disabled |
W8 |
Closed | |
|
|
Monitor type select monochrome/EGA/VGA |
W19 |
Open |
|
Monitor type select CGA |
W19 |
Closed | |
|
SIMM CONFIGURATION | |
|
Size |
Bank 0 |
|
1MB |
(4) 256K x 9 |
|
2MB |
(4) 512K x 9 |
|
4MB |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
|
CACHE CONFIGURATION |
|
Note: The location of the cache is unidentified. |
|
CACHE JUMPER CONFIGURATION | |
|
Size |
W20 |
|
32K x 8, 128K x 8 |
Pins 1 & 2 closed |
|
256K x 8, 512K x 8 |
Pins 2 & 3 closed |
|
CPU SPEED SELECTION | |||
|
Speed |
W18/pins 1 & 2 |
W18/pins 3 & 4 |
W18/pins 5 & 6 |
|
25MHz |
Open |
Closed |
Closed |
|
33MHz |
Closed |
Closed |
Closed |
|
50iMHz |
Open |
Closed |
Closed |
|
50MHz |
Closed |
Closed |
Closed |
|
66iMHz |
Closed |
Closed |
Closed |
|
75iMHz |
Open |
Closed |
Closed |
|
100iMHz |
Closed |
Closed |
Closed |
|
CPU TYPE SELECTION | |||
|
Type |
W15 |
W16 |
W17 |
|
80486SX |
Pins 1 & 2 closed |
Open |
Open |
|
80486DX |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Closed |
|
80486DX2 |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Closed |
|
80486DX4 |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Closed |
|
BUSCLK SIGNAL SELECTION | |
|
Speed |
W14A |
|
16MHz |
Pins 2 & 3 closed |
|
25MHz |
Pins 1 & 2 closed |
|
33MHz |
Open |
|
Note: The location of the above jumper is unidentified. | |
|
SERIAL PORT 2 SELECTION | |||||||
|
Setting |
W9 |
W10 |
W11 |
W12 |
W13 |
W14 | |
|
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. | |||||||