CNET TECHNOLOGY, INC.

CN160A REV.2.31

NIC Type

Arcnet

Network Transfer Rate

2.5Mbps

Data Bus

16-bit ISA

Topology

Linear Bus

Wiring Type

RG-58A/U 50ohm coaxial

Boot ROM

Available

CONNECTIONS

Function

Label

RG-58A/U 50ohm coaxial port

CN1

USER CONFIGURABLE SETTINGS

Function

Label

Position

Boot ROM enabled

JP11

Pins 1 & 2 closed

Boot ROM disabled

JP11

Pins 2 & 3 closed

Internal terminator enabled

JP13

Pins 1 & 2 closed

Internal terminator disabled

JP13

Pins 2 & 3 closed

BASE I/O ADDRESS SELECTION

Address

SW1/1

SW1/2

SW1/3

 

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

INTERRUPT SELECTION

IRQ

JP1

JP2

JP3

JP4

JP5

JP6

JP7

JP8

JP9

JP10

»

2

Closed

Open

Open

Open

Open

Open

Open

Open

Open

Open

 

3

Open

Closed

Open

Open

Open

Open

Open

Open

Open

Open

 

4

Open

Open

Closed

Open

Open

Open

Open

Open

Open

Open

 

5

Open

Open

Open

Closed

Open

Open

Open

Open

Open

Open

 

7

Open

Open

Open

Open

Closed

Open

Open

Open

Open

Open

 

10

Open

Open

Open

Open

Open

Closed

Open

Open

Open

Open

 

11

Open

Open

Open

Open

Open

Open

Closed

Open

Open

Open

 

12

Open

Open

Open

Open

Open

Open

Open

Closed

Open

Open

 

14

Open

Open

Open

Open

Open

Open

Open

Open

Open

Closed

 

15

Open

Open

Open

Open

Open

Open

Open

Open

Closed

Open

CABLE TYPE SELECTION

Type

JP12/A

JP12/B

RG-58A/U 50ohm coaxial

Pins 2 & 3 closed

Pins 2 & 3 closed

Unshielded twisted pair

Pins 1 & 2 closed

Pins 1 & 2 closed

ROM ADDRESS SELECTION

Address

SW1/4

SW1/5

SW1/6

SW1/7

SW1/8

 

C0000h-C07FFh

On

On

On

On

On

 

C4000h-C47FFh

On

On

Off

On

On

 

CC000h-CC7FFh

On

On

On

Off

On

»

D0000h-D07FFh

On

On

Off

Off

On

 

D4000h-D47FFh

On

On

On

On

Off

 

C8000h-C87FFh

On

On

Off

On

Off

 

DC000h-DC7FFh

On

On

On

Off

Off

 

E0000h-E07FFh

On

On

Off

Off

Off

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

LED1

Green

On

Network connection is good

LED1

Green

Off

Network connection is broken

LED2

Yellow

On

Data is being transmitted

LED2

Yellow

Off

Data is not being transmitted

MISCELLANEOUS TECHNICAL NOTES

Note: The purpose of SW2 is to set the station address. SW8 stands for the least significant bit and SW1 stands for the most significant bit. Never use the on position for any network station ID.