UNICOM ELECTRIC, INC.
8-BIT ETHERNET ADAPTER
NIC Type | Ethernet |
Transfer Rate | 10Mbps |
Data Bus | 8-bit ISA |
Topology | Star |
Wiring Type | Unshielded twisted pair AUI transceiver via DB-15 port |
Boot ROM | Available |

DMA CHANNEL | |||||
Channel | JP1A | JP1B | JP1C | JP1D | |
| » | Disabled | Open | Open | Open | Open |
1 | Closed | Open | Closed | Open | |
3 | Open | Closed | Open | Closed | |
I/O BASE ADDRESS | ||||
Address | JP2A | JP2B | JP2C | |
200 - 21Fh | Open | Closed | Closed | |
220 - 23Fh | Open | Closed | Open | |
240 - 25Fh | Open | Open | Closed | |
260 - 27Fh | Open | Open | Open | |
300 - 31Fh | Closed | Closed | Closed | |
320 - 33Fh | Closed | Closed | Open | |
| » | 340 -35Fh | Closed | Open | Closed |
360 - 37Fh | Closed | Open | Open | |
INTERRUPT REQUEST | ||||||||
IRQ | JP3A | JP3B | JP3C | JP3D | JP3E | JP3F | ||
2 | Open | Open | Open | Open | Open | Closed | ||
| » | 3 | Closed | Open | Open | Open | Open | Open | |
4 | Open | Closed | Open | Open | Open | Open | ||
5 | Open | Open | Closed | Open | Open | Open | ||
6 | Open | Open | Open | Closed | Open | Open | ||
7 | Open | Open | Open | Open | Closed | Open | ||
BOOT ROM ADDRESS | ||||||||
Address | JP4A | JP4B | JP4C | |||||
C0000 - C3FFFh | Open | Closed | Closed | |||||
C4000 - C7FFFh | Open | Closed | Open | |||||
C8000 - CBFFFh | Open | Open | Closed | |||||
CC000 - CFFFFh | Open | Open | Open | |||||
| » | D0000 - D3FFFh | Closed | Closed | Closed | ||||
D4000 - D7FFFh | Closed | Closed | Open | |||||
D8000 - DBFFFh | Closed | Open | Closed | |||||
DC000 - DFFFFh | Closed | Open | Open | |||||
BOOT ROM | ||
Setting | JP5 | |
| » | Disabled | Pins 2 & 3 closed |
Enabled | Pins 1 & 2 closed | |
CABLE TYPE | ||
Type | JP6 | |
| » | Unshielded twisted pair | Pins 2 & 3 closed |
AUI transceiver via DB-15 port | Pins 1 & 2 closed | |

DIAGNOSTIC LED(S) | |||
LED | Color | Status | Condition |
LED1 | Red | On | Data is being received |
LED1 | Red | Off | Data is not being received |
LED2 | Green | On | Data is being transmitted |
LED2 | Green | Off | Data is not being transmitted |
LED3 | Yellow | On | Twisted pair network connection is good |
LED3 | Yellow | Off | Twisted pair network connection is broken |
LED4 | Orange | On | Receive wire polarity reversed |
LED4 | Orange | Off | Receive wire polarity normal |