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CN190SBT

CNET TECHNOLOGY, INC.

CN190SBT

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)

RESPONSE/RECONFIGURATION TIMEOUTS

Response Time

Reconfiguration Time

JP1

JP2

74.7Ás

840ms

Open

Open

283.4Ás

1680ms

Closed

Open

561.8Ás

1680ms

Open

Closed

1118.6Ás

1680ms

Closed

Closed

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

INTERRUPT REQUEST

IRQ

JP3

JP4

JP5

JP6

JP7

JP9

JP10

JP11

JP12

JP14

JP15

3

Closed

Open

Open

Open

Open

Open

Open

Open

Open

Open

Open

 

4

Open

Closed

Open

Open

Open

Open

Open

Open

Open

Open

Open

 

5

Open

Open

Closed

Open

Open

Open

Open

Open

Open

Open

Open

 

6

Open

Open

Open

Closed

Open

Open

Open

Open

Open

Open

Open

 

7

Open

Open

Open

Open

Closed

Open

Open

Open

Open

Open

Open

 

9

Open

Open

Open

Open

Open

Closed

Open

Open

Open

Open

Open

 

10

Open

Open

Open

Open

Open

Open

Closed

Open

Open

Open

Open

 

11

Open

Open

Open

Open

Open

Open

Open

Closed

Open

Open

Open

 

12

Open

Open

Open

Open

Open

Open

Open

Open

Closed

Open

Open

 

14

Open

Open

Open

Open

Open

Open

Open

Open

Open

Closed

Open

 

15

Open

Open

Open

Open

Open

Open

Open

Open

Open

Open

Closed

CABLE TYPE

Type

JP16 & JP17

Unshielded twisted pair

Pins 1 & 2 closed

 

RG-62A/U 93ohm coaxial

Pins 2 & 3 closed

ONBOARD TERMINATOR

Setting

JP18

Disabled

Pins 2 & 3 closed

 

Enabled

Pins 1 & 2 closed

 

Notes:If the card is on either end of a linear bus network segment, the onboard terminator may be used instead of using an external terminator.

I/O BASE ADDRESS

Address

SW2/1

SW2/2

SW2/3

SW2/4

200h

On

On

On

On

220h

On

On

On

Off

240h

On

On

Off

On

260h

On

On

Off

Off

280h

On

Off

On

On

2A0h

On

Off

On

Off

2C0h

On

Off

Off

On

2E0h

On

Off

Off

Off

300h

Off

On

On

On

320h

Off

On

On

Off

340h

Off

On

Off

On

360h

Off

On

Off

Off

380h

Off

Off

On

On

3A0h

Off

Off

On

Off

3C0h

Off

Off

Off

On

3E0h

Off

Off

Off

Off

BASE MEMORY ADDRESS & BOOT ROM ADDRESS

Base Address

Boot ROM Address

SW2/5

SW2/6

SW2/7

SW2/8

 

C0000h

C4000h

Off

On

On

On

 

C8000h

CC000h

Off

On

On

Off

D0000h

D4000h

Off

On

Off

On

 

D8000h

DC000h

Off

On

Off

Off

 

E0000h

E4000h

Off

Off

On

On

DIAGNOSTIC LED(S)

LED

Status

Condition

LED1

On

Data is being transmitted or received

LED1

Off

Data is not being transmitted or received

FACTORY CONFIGURED SETTINGS

Jumper

Setting

JP1

Open

JP2

Open