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OC-3102

OLICOM INTERNATIONAL

OC-3102

NIC Type

Token-Ring

Transfer Rate

4Mbps

Data Bus

16-bit ISA

Topology

Ring

Wiring Type

Shielded twisted pair (DB-9 port)

Boot ROM

Available

INTERRUPT REQUEST

IRQ

SR3A

SR3B

SR3C

SR3D

SR3E

SR3F

SR3G

SR3H

SR3I

2/9

Open

Open

Open

Open

Open

Closed

Open

Open

Open

 

3

Closed

Open

Open

Open

Open

Open

Open

Open

Open

 

4

Open

Closed

Open

Open

Open

Open

Open

Open

Open

 

5

Open

Open

Closed

Open

Open

Open

Open

Open

Open

 

6

Open

Open

Open

Closed

Open

Open

Open

Open

Open

 

7

Open

Open

Open

Open

Closed

Open

Open

Open

Open

 

10

Open

Open

Open

Open

Open

Open

Closed

Open

Open

 

11

Open

Open

Open

Open

Open

Open

Open

Closed

Open

 

12

Open

Open

Open

Open

Open

Open

Open

Open

Closed

DMA CHANNEL

Channel

SR4A

SR4B

SR4C

SR4D

SR4E

SR4F

DMA5

Closed

Open

Open

Closed

Open

Open

 

DMA6

Open

Closed

Open

Open

Closed

Open

 

DMA7

Open

Open

Closed

Open

Open

Closed

CLOCK SELECT

Setting

SR6

Onboard clock

Pins 1 & 2 closed

 

System bus clock

Pins 2 & 3 closed

Note:If the system's bus clock speed is greater than 8MHz the onboard clock must be enabled.

BOOT ROM SIZE

Size

SR11

SR12

8/16KB

Pins 1 & 2 closed

Pins 1 & 2 closed

 

32KB

Pins 2 & 3 closed

Pins 1 & 2 closed

 

64KB

Pins 2 & 3 closed

Pins 2 & 3 closed

BOOT ROM

Setting

SR13

Disabled

Pins 1 & 2 closed

 

Enabled

Pins 2 & 3 closed

PRIMARY/ALTERNATE SELECT, I/O BASE ADDRESS, AND BOOT ROM ADDRESS

Setting

I/O Address

Boot ROM Address

SR14

Primary

0A20 - 0A2Fh

D0000 - D7FFFh

Pins 1 & 2 closed

 

Alternate

1A20 - 1A2Fh

D8000 - DFFFFh

Pins 2 & 3 closed

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

BRIDGE PAL ENABLE

Setting

SR15

Disabled

Pins 1 & 2 closed

 

Enabled

Pins 2 & 3 closed

Note:If installing two NICs for a bridge configuration, both cards must have this option enabled and a other must be set to alternate.

This jumper is the only jumper that the Micro Channel version has.