3COM CORPORATION

TOKENLINK

NIC Type

Token-Ring

Transfer Rate

4Mbps

Data Bus

16-bit ISA

Topology

Ring

Wiring Type

Unshielded twisted pair

Shielded twisted pair (DB-9 port)

Boot ROM

Available

DMA CHANNEL

Channel

JP1A

JP1B

JP1C

JP1D

JP1E

JP1F

JP1G

JP1H

»

DMA3

Open

Open

Open

Open

Open

Open

Closed

Closed

 

DMA5

Open

Open

Open

Open

Closed

Closed

Open

Open

 

DMA6

Open

Open

Closed

Closed

Open

Open

Open

Open

 

DMA7

Closed

Closed

Open

Open

Open

Open

Open

Open

INTERRUPT REQUEST

IRQ

JP2A

JP2B

JP2C

JP2D

JP2E

JP2F

»

5

Open

Open

Open

Open

Open

Closed

 

10

Open

Open

Open

Open

Closed

Open

 

11

Open

Open

Open

Closed

Open

Open

 

12

Open

Open

Closed

Open

Open

Open

 

14

Open

Closed

Open

Open

Open

Open

 

15

Closed

Open

Open

Open

Open

Open

I/O BASE ADDRESS

Address

JP3A

JP3B

JP3C

JP3D

»

300h

Closed

Open

Open

Open

 

310h

Open

Closed

Open

Open

 

320h

Open

Open

Closed

Open

 

350h

Open

Open

Open

Closed

PRIMARY/ALTERNATE MODE

Setting

JP4A

JP4B

JP4C

»

Single card

Open

Open

Closed

 

Primary

Closed

Open

Open

 

Alternate

Open

Closed

Open

Note: If two cards are to be used in a single system, one of the cards must be set to primary and the other one must be set to alternate. If only one card is used this option must be set to single.

BOOT ROM ADDRESS

Address

JP5A

JP5B

JP5C

JP5D

»

Disabled

Closed

Open

Open

Open

 

C4000h

Open

Closed

Open

Open

 

D4000h

Open

Open

Open

Closed

 

D6000h

Open

Open

Closed

Open