DIGITAL COMMUNICATIONS ASSOCIATES, INC.
IRMA 2-ISA
Category | Serial communications adapter |
Chipset Controller | Unidentified |
I /O Options Supported | Serial port |
Maximum Onboard Memory | N/A |

CONNECTIONS | |
Purpose | Location |
Serial port - coaxial | CN1 |
220H BASE ADDRESS | ||
Setting | SW1/2 | |
» | Enabled | On |
| Disabled | Off |
I/O ADDRESS | |||
Address | SW1/3 | SW1/4 | |
» | 280h | On | On |
| 2A0h | On | Off |
| 2C0h | Off | On |
| 300h | Off | Off |
INTERRUPT SELECT | |||
IRQ | SW1/5 | SW1/6 | |
» | IRQ2 | On | On |
| IRQ3 | On | Off |
| IRQ4 | Off | On |
| IRQ7 | Off | Off |
FACTORY CONFIGURED SETTINGS | |
Switch | Setting |
SW1/1 | Off |
MISCELLANEOUS TECHNICAL NOTES |
The location of SW1 is not specified in manufacturer's documentation. |