...because we can't all be on the bleeding edge...





ANET-1, ANET-12

COMPEX, INC.

ANET-1, ANET-12

NIC Type

ARCnet

Transfer Rate

2.5Mbps

Data Bus

8-bit ISA

Topology

Star (ANET-1)

Linear Bus (ANET-12)

Wiring Type

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 AND RECONFIGURATION TIMEOUTS

Response Time

Idle Time

Reconfiguration Time

JP1

JP2

74.7Ás

86Ás

840ms

Open

Open

 

283.4Ás

316Ás

1680ms

Open

Closed

 

561.8Ás

624Ás

1680ms

Closed

Open

 

1118.6Ás

1237Ás

1680ms

Closed

Closed

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

MODE SELECTION

Mode

JP3

Normal

As shown in diagram on previous page

 

Special

As shown on diagram on previous page

Note:In normal mode, any 32KB memory segment in the system may be selected. For an AT, however, with memory, display cards, and a hard drive controller, only 16KB of free memory space is available between CC000h and CFFFFh. In Special Mode the memory space occupied by the adapter is reduced by half to 16KB and the memory address is automatically set to CC000h. This overrides the base memory setting on JP15 and JP16.

I/O BASE ADDRESS

Address

JP9

JP8

JP7

JP6

JP5

JP4

 

260h

Open

Closed

Closed

Open

Open

Closed

 

280h

Open

Closed

Open

Closed

Closed

Closed

2E0h

Open

Closed

Open

Open

Open

Closed

 

2F0h

Open

Closed

Open

Open

Open

Open

 

300h

Open

Open

Closed

Closed

Closed

Closed

 

360h

Open

Open

Closed

Open

Open

Closed

Note:Jumpers count from right to left in the diagram.

INTERRUPT REQUEST

IRQ

JP10

JP11

JP12

JP13

JP14

2/9

Closed

Open

Open

Open

Open

 

3

Open

Closed

Open

Open

Open

 

4

Open

Open

Closed

Open

Open

 

5

Open

Open

Open

Closed

Open

 

7

Open

Open

Open

Open

Closed

BOOT ROM ADDRESS

Address

JP15

JP16

JP17

JP18

JP19

 

C0000h

Closed

Closed

Closed

Open

Open

 

C8000h

Open

Closed

Closed

Open

Open

 

CC000h

Open

Open

Closed

Open

Open

D0000h

Closed

Open

Closed

Open

Open

Note:Jumpers count from the bottom up in the diagram.

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

LED1

Red

On

Data is being transmitted

LED1

Red

Off

Data is not being transmitted

LED2

Green

On

Data is being received

LED2

Green

Off

Data is not being received