NIC Type:

ARCnet

Transfer Rate:

2.5Mbps

Data Bus:

8-bit ISA

Topology:

Star

Wiring Type

RG-62A/U 93ohm coaxial

Boot ROM

Available

INTERRUPT SELECT - JP1

IRQ

Jumper A

Jumper B

Jumper C

Jumper D

Jumper E

»

IRQ2

Closed

Open

Open

Open

Open

IRQ3

Open

Closed

Open

Open

Open

IRQ4

Open

Open

Closed

Open

Open

IRQ5

Open

Open

Open

Closed

Open

IRQ7

Open

Open

Open

Open

Closed

EXTENDED TIME-OUT

Setting

SW1/1

SW1/2

»

78µs

Off

Off

285µs

Off

On

563µs

On

Off

1130µs

On

On

Note: All nodes in the network must have identical time-out settings.

MEMORY ADDRESS

RAM Address

ROM Address

SW1/2

SW1/4

SW1/5

SW1/6

»

D0000h

N/A

Off

Off

Off

Off

D0000h

D4000h

On

Off

Off

Off

MEMORY ADDRESS

RAM Address

ROM Address

SW1/2

SW1/4

SW1/5

SW1/6

D0000h

D4000h

Off

Off

On

On

D0000h

E4000h

On

Off

On

On

C0000h

N/A

Off

Off

Off

On

C0000h

C4000h

On

Off

Off

On

C2000h

N/A

Off

On

Off

On

C2000h

C4000h

On

On

Off

On

D2000h

N/A

Off

On

Off

Off

D2000h

D4000h

On

On

Off

Off

E0000h

N/A

Off

Off

On

Off

E0000h

E4000h

On

Off

On

Off

E2000h

N/A

Off

On

On

Off

E2000h

E4000h

On

On

On

Off

Note:Boot ROM addresses switch settings are only valid on cards with boot ROM installed.

I/O ADDRESS

Address

SW1/8

SW1/9

SW1/10

»

2E0h

Off

Off

Off

280h

Off

On

On

2F0h

Off

Off

On

300h

Off

On

Off

330h

On

Off

Off

380h

On

Off

On

3E0h

On

On

Off

NODE ID NUMBER

ID #

SW2/1

SW2/2

SW2/3

SW2/4

SW2/5

SW2/6

SW2/7

SW2/8

»

255

On

On

On

On

On

On

On

On

1

Off

Off

Off

Off

Off

Off

Off

On

Note: Nodes can be numbered from 1 to 255. The switches are a binary representation of the node numbers. When a switch is on, the corresponding bit is set to 1 and has the following decimal value: SW2/1=128, SW2/2=64, SW2/3=32, SW2/4=16, SW2/5=8, SW2/6=4, SW2/7=2, SW2/8=1.