COMPEX, INC.

ANET16-1A (REV. B)

NIC Type

ARCnet

Transfer Rate

2.5Mbps

Data Bus

16-bit ISA

Topology

Star

Linear Bus

Wiring Type

Unshielded twisted pair

RG-62A/U 93ohm coaxial

Boot ROM

Available

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)

INTERRUPT REQUEST

IRQ

JP1A

JP1B

JP1C

JP1D

JP1E

JP1F

JP1G

JP1H

JP1I

»

2/9

Open

Open

Open

Open

Closed

Open

Open

Open

Open

 

3

Open

Open

Open

Open

Open

Closed

Open

Open

Open

 

4

Open

Open

Open

Open

Open

Open

Closed

Open

Open

 

5

Open

Open

Open

Open

Open

Open

Open

Closed

Open

 

7

Open

Open

Open

Open

Open

Open

Open

Open

Closed

 

10

Open

Open

Open

Closed

Open

Open

Open

Open

Open

 

11

Open

Open

Closed

Open

Open

Open

Open

Open

Open

 

12

Open

Closed

Open

Open

Open

Open

Open

Open

Open

 

15

Closed

Open

Open

Open

Open

Open

Open

Open

Open

I/O BASE ADDRESS

Address

JP2A

JP2B

JP2C

 

260h

Closed

Closed

Closed

 

290h

Open

Closed

Closed

»

2E0h

Closed

Open

Closed

 

2F0h

Open

Open

Closed

 

300h

Closed

Closed

Open

 

350h

Open

Closed

Open

 

380h

Closed

Open

Open

 

3E0h

Open

Open

Open

BOOT ROM ADDRESS

Address

JP3A

JP3B

JP3C

JP3D

JP3E

 

C0000h 1

Closed

Closed

Closed

Closed

Closed

 

C4000h 1

Closed

Closed

Open

Closed

Closed

 

CC000h

Closed

Closed

Closed

Open

Closed

»

D0000h

Closed

Closed

Open

Open

Closed

 

D4000h

Closed

Closed

Closed

Closed

Open

 

D8000h

Closed

Closed

Open

Closed

Open

 

DC000h

Closed

Closed

Closed

Open

Open

 

E0000h

Closed

Closed

Open

Open

Open

 

Note 1 :These options can be supported by XT or fully XT-compatible PCs only.

WAIT STATE

Setting

JP4

»

Zero wait states disabled

Open

 

Zero wait states enabled

Closed

Note:If Zero wait state is enabled, IOCHRDY (JP5) must be disabled.

I/O CHANNEL READY

Setting

JP5

»

IOCHRDY signal disabled

Open

 

IOCHRDY signal enabled

Closed

Note:If IOCHRDY signal is enabled, Zero wait state (JP4) must be disabled. If optional PROM is installed, IOCHRDY must be enabled and Zero wait state (JP4) must be disabled.

CABLE TYPE

Type

JP7 & JP8

»

RG62A/U 93ohm coaxial

Pins 1 & 2 Closed

 

Unshielded twisted pair

Pins 2 & 3 Closed

TOPOLOGY CONFIGURATION

Mode

JP9

»

Star

Closed

 

Linear Bus

Open

DIAGNOSTIC LED(S)S

LED

Color

Status

Condition

LED1

Red

On

Network connection is good

LED1

Red

Blinking

Network connection is bad or no other nodes are active

LED2

Green

On

Data is being transmitted or received

LED2

Green

Off

Data is not being transmitted or received

LED2

Green

Blinking

System is being powered up