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AN-120 /AN-220, AN-120S/AN-120BT

DANPEX CORPORATION

AN-120 /AN-220, AN-120S/AN-120BT

NIC Type

ARCnet

Transfer Rate

2.5Mbps

Data Bus

8-bit ISA

Topology

Star (AN-120)

Linear Bus (AN-220)

Wiring Type

Shielded/Unshielded twisted pair

RG62A/U 93ohm coaxial

Boot ROM

Available

NODE ADDRESS

Node

SW2/1

SW2/2

SW2/3

SW2/4

SW2/5

SW2/6

SW2/7

SW2/8

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)

BASE MEMORY ADDRESS & BOOT ROM ADDRESS

Base Address

Boot ROM

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

 

C0000 - C07FFh

C2000 - C3FFFh

On

On

On

On

On

 

C0800 - C0FFFh

C2000 - C3FFFh

Off

On

On

On

On

 

C1000 - C17FFh

C2000 - C3FFFh

On

Off

On

On

On

 

C1800 - C1FFFh

C2000 - C3FFFh

Off

Off

On

On

On

 

C4000 - C47FFh

C6000 - C7FFFh

On

On

Off

On

On

 

C4800 - C4FFFh

C6000 - C7FFFh

Off

On

Off

On

On

 

C5000 - C57FFh

C6000 - C7FFFh

On

Off

Off

On

On

 

C5800 - C5FFFh

C6000 - C7FFFh

Off

Off

Off

On

On

 

CC000 - CC7FFh

CE000 - CFFFFh

On

On

On

Off

On

 

CC800 - CCFFFh

CE000 - CFFFFh

Off

On

On

Off

On

 

CD000 - CD7FFh

CE000 - CFFFFh

On

Off

On

Off

On

 

CD800 - CDFFFh

CE000 - CFFFFh

Off

Off

On

Off

On

D0000 - D07FFh

D2000 - D3FFFh

On

On

Off

Off

On

 

D0800 - D0FFFh

D2000 - D3FFFh

Off

On

Off

Off

On

 

D1000 - D17FFh

D2000 - D3FFFh

On

Off

Off

Off

On

 

D1800 - D1FFFh

D2000 - D3FFFh

Off

Off

Off

Off

On

 

D4000 - D47FFh

D6000 - D7FFFh

On

On

On

On

Off

 

D4800 - D4FFFh

D6000 - D7FFFh

Off

On

On

On

Off

 

D5000 - D57FFh

D6000 - D7FFFh

On

Off

On

On

Off

 

D5800 - D5FFFh

D6000 - D7FFFh

Off

Off

On

On

Off

 

D8000 - D87FFh

DA000 - DBFFFh

On

On

Off

On

Off

 

D8800 - D8FFFh

DA000 - DBFFFh

Off

On

Off

On

Off

 

D9000 - D97FFh

DA000 - DBFFFh

On

Off

Off

On

Off

 

D9800 - D9FFFh

DA000 - DBFFFh

Off

Off

Off

On

Off

 

DC000 - DC7FFh

DE000 - DFFFFh

On

On

On

Off

Off

 

DC800 - DCFFFh

DE000 - DFFFFh

Off

On

On

Off

Off

 

DD000 - DD7FFh

DE000 - DFFFFh

On

Off

On

Off

Off

 

DD800 - DDFFFh

DE000 - DFFFFh

Off

Off

On

Off

Off

 

E0000 - E07FFh

E2000 - E2FFFh

On

On

Off

Off

Off

 

E0800 - E0FFFh

E2000 - E2FFFh

Off

On

Off

Off

Off

 

E1000 - E17FFh

E2000 - E2FFFh

On

Off

Off

Off

Off

 

E1800 - E1FFFh

E2000 - E2FFFh

Off

Off

Off

Off

Off

I/O BASE ADDRESS

Address

SW1/6

SW1/7

SW1/8

 

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

BOOT ROM

Setting

SW1/9

Disabled

Off

 

Enabled

On

ONBOARD TERMINATOR

Setting

SW1/10

Disabled

Off

 

Enabled

On

Note:If the card is the last in the line of network cards, the onboard terminator may be enabled instead of using a T-connector and an external terminator. This setting is valid only with the AN-220. If using an AN-120, SW1/10 must be off. (Star topologies do not require the use of terminators)

RESPONSE AND RECONFIGURATION TIMEOUTS

Response Time

Idle Time

Reconfiguration Time

ET1

ET2

78Ás

86Ás

840ms

Open

Open

 

285Ás

316Ás

1680ms

Closed

Open

 

563Ás

624Ás

1680ms

Open

Closed

 

1130Ás

1237Ás

1680ms

Closed

Closed

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

INTERRUPT REQUEST

IRQ

JP1A

JP1B

JP1C

JP1D

JP1E

2

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

CABLE TYPE

Type

JP2

JP3

RG62A/U 93ohm coaxial

Pins 2 & 3 closed

Pins 2 & 3 closed

 

Shielded/Unshielded twisted pair

Pins 1 & 2 closed

Pins 1 & 2 closed

DIAGNOSTIC LED(S)

LED

Status

Condition

LED1

On

Card is receiving power and is operating properly

LED1

Blinking

Data is being transmitted or received

LED1

Off

Card is not receiving power or is defective