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B-666

UNIDENTIFIED

B-666

NIC Type

ARCnet

Network Transfer Rate

2.5Mbps

Data Bus

8-bit ISA

Topology

Star

Wiring Type

RG-62A/U 93ohm coaxial

RG-58A/U 50ohm coaxial

Boot ROM

Available

CONNECTIONS

Function

Label

Function

Label

RG-58A/U 50ohm coaxial

CN1

RG-62A/U 93ohm coaxial

CN2

USER CONFIGURABLE SETTINGS

Function

Label

Position

Boot ROM enabled

JP1

Closed

Boot ROM disabled

JP1

Open

STATION NODE ADDRESS SELECTION

Node

SW2/1

SW2/2

SW2/3

SW2/4

SW2/5

SW2/6

SW2/7

SW2/8

1

Off

On

On

On

On

On

On

On

2

On

Off

On

On

On

On

On

On

3

Off

Off

On

On

On

On

On

On

4

On

On

Off

On

On

On

On

On

5

Off

On

Off

On

On

On

On

On

251

Off

Off

On

Off

Off

Off

Off

Off

252

On

On

Off

Off

Off

Off

Off

Off

253

Off

On

Off

Off

Off

Off

Off

Off

254

On

Off

Off

Off

Off

Off

Off

Off

255

Off

Off

Off

Off

Off

Off

Off

Off

Note: A total of 255 base address settings are available. The switches are a binary representation of the decimal memory addresses. SW1/8 is the Most Significant Bit and switch SW1/1 is the Least Significant Bit. Turn off the switches and add the values of the switches to obtain the correct memory address.

ROM ADDRESS SELECTION

Address

PROM Address

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

C:0000-C:07FFh

C:2000-C:3FFFh

On

On

On

On

On

C:0800-C:0FFFh

C:2000-C:3FFFh

Off

On

On

On

On

C:1000-C:17FFh

C:2000-C:3FFFh

On

Off

On

On

On

C:1800-C:1FFFh

C:2000-C:3FFFh

Off

Off

On

On

On

C:4000-C:47FFh

C:6000-C:7FFFh

On

On

Off

On

On

C:4800-C:4FFFh

C:6000-C:7FFFh

Off

On

Off

On

On

C:5000-C:57FFh

C:6000-C:7FFFh

On

Off

Off

On

On

C:5800-C:5FFFh

C:6000-C:7FFFh

Off

Off

Off

On

On

C:C000-C:C7FFh

C:E000-C:FFFFh

On

On

On

Off

On

C:C800-C:CFFFh

C:E000-C:FFFFh

Off

On

On

Off

On

C:D000-C:D7FFh

C:E000-C:FFFFh

On

Off

On

Off

On

C:D800-C:DFFFh

C:E000-C:FFFFh

Off

Off

On

Off

On

D:0000-D:07FFh

D:2000-D:3FFFh

On

On

Off

Off

On

D:0800-D:0FFFh

D:2000-D:3FFFh

Off

On

Off

Off

On

D:1000-D:17FFh

D:2000-D:3FFFh

On

Off

Off

Off

On

D:1800-D:1FFFh

D:2000-D:3FFFh

Off

Off

Off

Off

On

D:4000-D:47FFh

D:6000-D:7FFFh

On

On

On

On

Off

D:4800-D:4FFFh

D:6000-D7FFFh

Off

On

On

On

Off

D:5000-D:57FFh

D:6000-D:7FFFh

On

Off

On

On

Off

D:5800-D:5FFFh

D:6000-D:7FFFh

Off

Off

On

On

Off

D:8000-D:87FFh

D:A000-D:BFFFh

On

On

Off

On

Off

D:8800-D:8FFFh

D:A000-D:BFFFh

Off

On

Off

On

Off

D:9000-D:97FFh

D:A000-D:BFFFh

On

Off

Off

On

Off

D:9800-D:9FFFh

D:A000-D:BFFFh

Off

Off

Off

On

Off

D:C000-D:C7FFh

D:E000-D:FFFFh

On

On

On

Off

Off

D:C800-D:CFFFh

D:E000-D:FFFFh

Off

On

On

Off

Off

D:D000-D:D7FFh

D:E000-D:FFFFh

On

Off

On

Off

Off

D:D800-D:DFFFh

D:E000-D:FFFFh

Off

Off

On

Off

Off

E:0000-E:07FFh

E:2000-E:3FFFh

On

On

Off

Off

Off

E:0800-E:0FFFh

E:2000-E:3FFFh

Off

On

Off

Off

Off

E:1000-E17FFh

E:2000-E:3FFFh

On

Off

Off

Off

Off

E:1800-E:1FFFh

E:2000-E:3FFFh

Off

Off

Off

Off

Off

BASE I/O ADDRESS SELECTION

Setting

SW1/6

SW1/7

SW1/8

260-26Fh

On

On

On

290-29Fh

Off

On

On

2E0-2EFh

On

Off

On

2F0-2FFh

Off

Off

On

300-30Fh

On

On

Off

350-35Fh

Off

On

Off

380-38Fh

On

Off

Off

3E0-3EFh

Off

Off

Off

MISCELLANEOUS TECHNICAL NOTES

Note: Jumper JP2 sets the interrupt line, however the exact configuration is unidentified.

The purpose of jumper JP3 is unidentified.