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# TEKNOR INDUSTRIAL COMPUTERS, INC.
TEK-857
Card Type Serial Expansion card
Chip Set Unidentified
I/O Options Serial ports (3), PC/104 connectors (2)
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|---------------------------+-------+---------------+--------|
| Serial port A, B, C, D | J1 | 16-bit PC/104 | P1/C & |
| connector | | connector | D |
|---------------------------+-------+---------------+--------|
| Serial port E connector | J2 | 8-bit PC/104 | P2/A & |
| | | connector | B |
|---------------------------+-------+---------------+--------|
| Serial port F connector | J3 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COM B TERMINATION RESISTOR SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|--------------------------------------+-------+-------------|
| CH.A termination enabled | W3 | Closed |
|--------------------------------------+-------+-------------|
| CH.A termination disabled | W3 | Open |
|--------------------------------------+-------+-------------|
| CH.B termination enabled | W4 | Closed |
|--------------------------------------+-------+-------------|
| CH.B termination disabled | W4 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COM C TERMINATION RESISTOR SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|--------------------------------------+-------+-------------|
| CH.A termination enabled | W6 | Closed |
|--------------------------------------+-------+-------------|
| CH.A termination disabled | W6 | Open |
|--------------------------------------+-------+-------------|
| CH.B termination enabled | W5 | Closed |
|--------------------------------------+-------+-------------|
| CH.B termination disabled | W5 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COM D TERMINATION RESISTOR SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|--------------------------------------+-------+-------------|
| CH.A termination enabled | W8 | Closed |
|--------------------------------------+-------+-------------|
| CH.A termination disabled | W8 | Open |
|--------------------------------------+-------+-------------|
| CH.B termination enabled | W7 | Closed |
|--------------------------------------+-------+-------------|
| CH.B termination disabled | W7 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BASE I/O ADDRESS SELECTION |
|------------------------------------------------------------|
|Alternate| COM A |COM B |COM C |COM D |COM E |COM F | W1 |
|---------+-------+------+------+------+------+------+-------|
| 398h | 2E8h | 258h | 3E8h | 338h | 298h | 3B8h |» Open |
|---------+-------+------+------+------+------+------+-------|
| 4D8h | 438h | 478h | 418h | 458h | 498h | 4B8h |Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT INTERRUPT SELECTION |
|------------------------------------------------------------|
| COM A | COM B | COM C | COM D | COM E | COM F | W2 |
|--------+--------+--------+--------+--------+--------+------|
| IRQ11 | IRQ15 | IRQ10 | IRQ9 | IRQ11 | IRQ11 |» Open|
|--------+--------+--------+--------+--------+--------+------|
|Disabled|Disabled|Disabled|Disabled|Disabled|Disabled|Closed|
|------------------------------------------------------------|
|Note: When the IRQ lines are enabled, COM A, COM E, and COM |
|F share the same interrupt setting. |
+------------------------------------------------------------+