SEALEVEL SYSTEMS, INC.
ACB-104
| Card Type | Asyncroneous serial I/O adapter |
| Protocols Supported | RS-422, RS-485 |
| I/O Options | DB-25P serial port, PC104 connectors (2) |
CONNECTIONS |
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| Purpose | Location |
Purpose | Location |
| PC/104 connector 1 | J1 | DB-25P serial connector | P1 |
| PC/104 connector 2 | J2 | ||
USER CONFIGURABLE SETTINGS |
|||
Function |
Label |
Position |
|
| Transmit clock signal input | E2 | On | |
| Transmit clock signal output | E2 | Off | |
| » | Single card sharing one IRQ | E3 | Pins 11 & 12 closed |
| Multiple cards sharing one IRQ | E3 | Pins 11 & 12 open | |
» |
Serial port enabled | SW1/8 | On |
| Serial port disabled | SW1/8 | Off | |
BASE I/O ADDRESS SELECTION (PARALLEL) |
||||||||
Setting |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
SW1/5 |
SW1/6 |
SW1/7 |
|
280h |
Off |
On |
Off |
On |
On |
On |
On |
|
» |
2A0h |
Off |
On |
Off |
On |
Off |
On |
On |
2E8h |
Off |
On |
Off |
Off |
Off |
On |
Off |
|
2F8h |
Off |
On |
Off |
Off |
Off |
Off |
Off |
|
300h |
Off |
Off |
On |
On |
On |
On |
On |
|
328h |
Off |
Off |
On |
On |
Off |
On |
Off |
|
3E8h |
Off |
Off |
Off |
Off |
Off |
On |
Off |
|
| 3F8h | Off | Off | Off | Off | Off | Off | Off | |
DMA SELECTION |
||
Function |
E1 |
|
|
DMA disabled | Pins 1 & 2, 3 & 4 open |
| Half duplex - Channel 1 | Pins 1 & 2 closed | |
| Half duplex - Channel 3 | Pins 3 & 4 closed | |
| Full duplex | Pins 1 & 2, 3 & 4 closed | |
| DMA permanently enabled | Pins 7 & 8 closed | |
| DMA software enabled | Pins 5 & 6 closed | |
| RS-485 mode enabled | Pins 9 & 10 closed | |
IRQ SELECTION |
||
IRQ |
E3 |
|
|
IRQ 2 | Pins 1 & 2 closed |
| IRQ 3 | Pins 3 & 4 closed | |
| IRQ 4 | Pins 5 & 6 closed | |
| IRQ 5 | Pins 7 & 8 closed | |
| IRQ 7 | Pins 9 & 10 closed | |