COMPEX, INC.

ANET-16-1A(REVISION C2)

NIC Type

ARCnet

Transfer Rate

2.5-Mbps

Data Bus

16-bit ISA

Topology

Linear bus, Star

Wiring Type

RG-58A/U 50ohm coaxial

Unshielded twisted pair

Boot ROM

Available

BASE MEMORY ADDRESS SELECT

Address

J2/A

J2/B

J2/C

J2/D

J2/E

C0000h

Closed

Closed

Closed

Closed

Closed

C4000h

Closed

Closed

Open

Closed

Closed

CC000h

Closed

Open

Closed

Closed

Closed

D0000h

Closed

Open

Open

Closed

Closed

D4000h

Open

Closed

Closed

Closed

Closed

D8000h

Open

Closed

Open

Closed

Closed

DC000h

Open

Open

Closed

Closed

Closed

E0000h

Open

Open

Open

Closed

Closed

BOOT ROM

Setting

J1/C

»

Disabled

Open

 

Enabled

Closed

CABLE TYPE

Type

J5

J6

»

RG-58A/U 50ohm coaxial

Pins 1 & 2 closed

Pins 1 & 2 closed

 

Unshielded twisted pair

Pins 2 & 3 closed

Pins 2 & 3 closed

INTERRUPT SELECT

IRQ

J4/A

J4/B

J4/C

J4/D

J4/E

J4/F

J4/G

J4/H

J4/I

»

IRQ2

Closed

Open

Open

Open

Open

Open

Open

Open

Open

 

IRQ3

Open

Closed

Open

Open

Open

Open

Open

Open

Open

 

IRQ4

Open

Open

Closed

Open

Open

Open

Open

Open

Open

 

IRQ5

Open

Open

Open

Closed

Open

Open

Open

Open

Open

 

IRQ7

Open

Open

Open

Open

Closed

Open

Open

Open

Open

 

IRQ10

Open

Open

Open

Open

Open

Open

Open

Open

Closed

 

IRQ11

Open

Open

Open

Open

Open

Open

Open

Closed

Open

 

IRQ12

Open

Open

Open

Open

Open

Open

Closed

Open

Open

 

IRQ15

Open

Open

Open

Open

Open

Closed

Open

Open

Open

I/O ADDRESS SELECT

Address

J3/A

J3/B

J3/C

260h

Closed

Closed

Closed

290h

Closed

Closed

Open

2E0h

Closed

Open

Closed

2F0h

Closed

Open

Open

300h

Open

Closed

Closed

350h

Open

Closed

Open

380h

Open

Open

Closed

3E0h

Open

Open

Open

NODE ADDRESS

Node

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

SW1/7

SW1/8

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)

TIMEOUT CONFIGURATION

Response Time

J1/A

J1/B

»

74.7µs

Open

Open

 

283.4µs

Open

Closed

 

561.8µs

Closed

Open

 

1118.6µs

Closed

Closed

TOPOLOGY

Type

J7

»

Star

Closed

 

Linear bus

Open

CONNECTIONS

Purpose

Location

External LED connector

LJ1

DIAGNOSTIC LEDS

LED

Color

Status

Condition

LED1

Red

Blinking

Network connection is broken

LED1

Red

On

Network connection is good

LED2

Green

Off

Data is not being transmitted/received

LED2

Green

On

Data is being transmitted/received