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AN-260

DANPEX CORPORATION

AN-260

NIC Type

ARCnet

Transfer Rate

2Mbps

Data Bus

8-bit ISA

Topology

Star

Linear Bus

Wiring Type

Shielded/Unshielded twisted pair

Boot ROM

Available

NODE ADDRESS

Node

SW2/1

SW2/2

SW2/3

SW2/4

SW2/5

SW2/6

SW2/7

SW2/8

0

-

-

-

-

-

-

-

-

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

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: Node address 0 is used for messaging between nodes and must not be used.

A total of 255 node address settings are available. The switches are a binary representation of the decimal node addresses. Switch 1 is the Least Significant Bit and switch 8 is the Most Significant Bit. The switches have the following decimal values: switch 1=1, 2=2, 3=4, 4=8, 5=16, 6=32, 7=64, 8=128. Turn off the switches and add the values of the off switches to obtain the correct node address. (On=0, Off=1)

BASE MEMORY ADDRESS & BOOT ROM ADDRESS

Base Address

Boot ROM

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

C0000h

C2000h

On

On

On

On

On

C0800h

C2000h

Off

On

On

On

On

C1000h

C2000h

On

Off

On

On

On

C1800h

C2000h

Off

Off

On

On

On

C4000h

C6000h

On

On

Off

On

On

C4800h

C6000h

Off

On

Off

On

On

C5000h

C6000h

On

Off

Off

On

On

C5800h

C6000h

Off

Off

Off

On

On

CC000h

CE000h

On

On

On

Off

On

CC800h

CE000h

Off

On

On

Off

On

CD000h

CE000h

On

Off

On

Off

On

CD800h

CE000h

Off

Off

On

Off

On

D0000h

D2000h

On

On

Off

Off

On

D0800h

D2000h

Off

On

Off

Off

On

D1000h

D2000h

On

Off

Off

Off

On

D1800h

D2000h

Off

Off

Off

Off

On

D4000h

D6000h

On

On

On

On

Off

D4800h

D6000h

Off

On

On

On

Off

D5000h

D6000h

On

Off

On

On

Off

D5800h

D6000h

Off

Off

On

On

Off

D8000h

DA000h

On

On

Off

On

Off

D8800h

DA000h

Off

On

Off

On

Off

D9000h

DA000h

On

Off

Off

On

Off

D9800h

DA000h

Off

Off

Off

On

Off

DC000h

DE000h

On

On

On

Off

Off

DC800h

DE000h

Off

On

On

Off

Off

DD000h

DE000h

On

Off

On

Off

Off

DD800h

DE000h

Off

Off

On

Off

Off

E0000h

E2000h

On

On

Off

Off

Off

E0800h

E2000h

Off

On

Off

Off

Off

E1000h

E2000h

On

Off

Off

Off

Off

E1800h

E2000h

Off

Off

Off

Off

Off

I/O BASE ADDRESS

Address

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

BOOT ROM

Setting

SW1/9

Disabled

Off

 

Enabled

On

ONBOARD TERMINATOR

Setting

SW1/10

Disabled

Off

 

Enabled

On

Note: If the card is on either end of a linear bus network segment, the onboard terminator may be used instead

RESPONSE AND RECONFIGURATION TIMEOUTS

Response Time

Idle Time

Reconfiguration Time

ET1

ET2

78m s

86m s

840ms

Open

Open

285m s

316m s

1680ms

Closed

Open

563m s

624m s

1680ms

Open

Closed

1130m s

1237m s

1680ms

Closed

Closed

Note: All NICs on the network must have this option set the same.

INTERRUPT REQUEST

IRQ

JP1A

JP1B

JP1C

JP1D

JP1E

2

Open

Open

Open

Open

Closed

3

Open

Open

Open

Closed

Open

4

Open

Open

Closed

Open

Open

5

Open

Closed

Open

Open

Open

7

Closed

Open

Open

Open

Open

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

LED1

Green

On

Card is receiving power and is operating properly

LED1

Green

Off

Card is not receiving power or is defective

LED2

Red

Flashing

Data is being transmitted or received

LED2

Red

Off

Data is not being transmitted or received