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16-BIT ETHERNET ADAPTER

UNICOM ELECTRIC, INC.

16-BIT ETHERNET ADAPTER

NIC Type

Ethernet

Transfer Rate

10Mbps

Data Bus

16-bit ISA

Topology

Star

Wiring Type

Unshielded twisted pair

AUI transceiver via DB-15 port

Boot ROM

Available

COMPATIBILITY MODE

Setting

JP1

Disabled

Pins 1 & 2 closed

 

Enabled

Pins 2 & 3 closed

Note:On some systems the data bus timing is not truly IBM PC/AT compatible. If the card is not initializing enabling compatibility mode may allow the card to operate properly.

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

 

2/9

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

Closed

Closed

Closed

 

C4000 - C7FFFh

Closed

Closed

Open

 

C8000 - CBFFFh

Closed

Open

Closed

 

CC000 - CFFFFh

Closed

Open

Open

D0000 - D3FFFh

Open

Closed

Closed

 

D4000 - D7FFFh

Open

Closed

Open

 

D8000 - DBFFFh

Open

Open

Closed

 

DC000 - DFFFFh

Open

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