UNIDENTIFIED
8-BIT THREE-IN-ONE BOARD
NIC Type | Ethernet |
Transfer Rate | 10Mbps |
Data Bus | 8-bit ISA |
Topology | Linear bus |
Wiring Type | AUI transceiver via DB-15 port RG-58A/U 50ohm coaxial Unshielded twisted pair |
Boot ROM | Available |

ADDRESS SELECT | ||||
I/O Address | Base Memory Address | W2 | W3 | |
| » | 300h | C800h | Closed | Closed |
320h | CC00h | Open | Closed | |
340h | D000h | Closed | Open | |
360h | D400h | Open | Open | |
BOOT ROM | ||
Setting | W1 | |
| » | Disabled | Open |
Enabled | Closed | |
CABLE TYPE | |||
Type | W8 | W9 | |
| » | RG-58A/U 50ohm coaxial | Pins 1 & 2 closed | Pins 1 & 2 closed |
AUI transceiver via DB-15 port | Pins 2 & 3 closed | Pins 1 & 2 closed | |
Unshielded twisted pair | Pins 2 & 3 closed | Pins 2 & 3 closed | |
INTERRUPT SELECT | |||||
IRQ | W4 | W5 | W6 | W7 | |
| » | IRQ3 | Closed | Open | Open | Open |
IRQ2 | Open | Open | Open | Closed | |
IRQ4 | Open | Closed | Open | Open | |
IRQ5 | Open | Open | Closed | Open | |
LINK TEST | ||
Setting | W10 | |
| » | Enabled | Pins 1 & 2 closed |
Disabled | Pins 2 & 3 closed | |
DIAGNOSTIC LED(S) | |||
LED | Color | Status | Condition |
LED1 | Yellow | On | Data is not being transmitted |
LED1 | Yellow | Blinking | Data is being transmitted |
LED2 | Red | On | Data is not being received |
LED2 | Red | Blinking | Data is being received |
LED3 | Green | On | Network connection is good |
LED3 | Green | Off | Network connection is broken |