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LanCard A-286/LanCard A-286 HiZ

TIARA COMPUTER SYSTEMS, INC.

LanCard A-286/LanCard A-286 HiZ

NIC Type

ARCnet

Transfer Rate

2.5Mbps

Data Bus

8-bit ISA

Topology

Star (A-286)

Linear Bus (A-286 HiZ only)

Wiring Type

RG-62A/U 93ohm coaxial (A-286 or A-286 HiZ)

RG-58A/U 50ohm coaxial (A-286 HiZ only)

Boot ROM

Available

NODE ADDRESS

Node

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

SW1/7

SW1/8

0

-

-

-

-

-

-

-

-

1

On

On

On

On

On

On

On

Off

2

On

On

On

On

On

On

Off

On

3

On

On

On

On

On

On

Off

Off

4

On

On

On

On

On

Off

On

On

251

Off

Off

Off

Off

Off

On

Off

Off

252

Off

Off

Off

Off

Off

Off

On

On

253

Off

Off

Off

Off

Off

Off

On

Off

254

Off

Off

Off

Off

Off

Off

Off

On

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 8=1, 7=2, 6=4, 5=8, 4=16, 3=32, 2=64, 1=128. Turn off the switches and add the values of the off switches to obtain the correct node address. (On=0, off=1)

DIAGNOSTIC LED(S)

LED

Status

Condition

L1

Off

Data is not being transmitted

L1

Blinking

Card is reconfiguring

L1

On

Card is operating normally on the network

Note:If either of the first two conditions persists, a hardware failure exists.

INTERRUPT REQUEST

IRQ

JP1

JP2

JP3

JP4

JP5

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

I/O BASE ADDRESS

Address

JP6

JP7

JP8

JP9

JP10

JP11

2E0h

Open

Closed

Open

Open

Open

Closed

 

280h

Open

Closed

Open

Closed

Closed

Closed

 

2F0h

Open

Closed

Open

Open

Open

Open

 

300h

Open

Open

Closed

Closed

Closed

Closed

BOOT ROM ADDRESS

Address

JP12

JP13

JP14

JP15

JP16

D0OOh

Open

Open

Closed

Open

Closed

 

C0OOh

Open

Open

Closed

Closed

Closed

 

C8OOh

Open

Open

Closed

Closed

Open

 

D8OOh

Open

Open

Closed

Open

Open

RESPONSE/RECONFIGURATION TIMEOUTS

Distance

Response Time

Reconfiguration

JP17

JP18

4.8 miles

74.7Ás

840ms

Open

Open

 

21.0 miles

263.4Ás

1680ms

Closed

Open

 

42.5 miles

561.8Ás

1680ms

Open

Closed

 

85.6 miles

1118.6Ás

1680ms

Closed

Closed

Note:The distance given is the maximum distance between the two furthest nodes on the network.