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LAVA ARCLINK

LAVA COMPUTER MFG. INC.

LAVA ARCLINK

NIC Type

ARCnet

Transfer Rate

2.5Mbps

Data Bus

8-bit ISA

Topology

Linear bus

Wiring Type

RG62A/U 93ohm coaxial

Boot ROM

N/A

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

Off

On

On

On

On

On

On

On

255

Off

Off

Off

Off

Off

Off

Off

Off

Note:Node address 0 is reserved 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 most significant bit and switch 8 the least significant bit. The switches have the following decimal values: switch 1=128, switch 2=64, switch 3=32, switch 4=16, switch 5=8, switch 6=4, switch 7=2, switch 8=1. Turn Off the appropriate switches and add the values of the ‘off’ switches to obtain the correct node address.

BASE MEMORY SELECT

Address

SW2/1

E000h

On

D000h

Off

I/O ADDRESS SELECT

Address

SW2/2

SW2/3

2E0h

On

On

2A0h

On

Off

3E0h

Off

On

3A0h

Off

Off

FACTORY CONFIGURED SETTING

Swtich

Setting

SW2/4

N/A

INTERRUPT SELECT

IRQ

JP1

JP2

JP3

JP4

»

IRQ3

Open

Closed

Open

Open

 

IRQ2

Open

Open

Open

Closed

 

IRQ4

Closed

Open

Open

Open

 

IRQ5

Open

Open

Closed

Open

DIAGNOSTICS LEDS

LED

Color

Status

Condition

LED1

Red

On

Accessing on board memory or I/O

LED1

Red

Blinking

System power up

LED1

Red

On

Transferring to and from the network

LED2

Green

On

Transmitting to another node

LED2

Green

Blinking

No node is accessable

LED2

Green

On

Coax Cable connected to a active network

Note:LED2 will blink at a rate based on the NODE address. If the NODE address is low, LED2 will blink at a slow rate. If the NODE address is above 128 then, LED2 will blink at a rate too high to be seen by the human eye.