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LanCard/A * AT HiZ

TIARA COMPUTER SYSTEMS, INC.

LanCard/A * AT HiZ

NIC Type

ARCnet

Transfer Rate

2.5Mbps

Data Bus

16-bit ISA

Topology

Star

Wiring Type

RG-62A/U 93ohm coaxial

RG-58A/U 50ohm coaxial

Boot ROM

Available

NODE ADDRESS

Node

SW4/1

SW4/2

SW4/3

SW4/4

SW4/5

SW4/6

SW4/7

SW4/8

0

-

-

-

-

-

-

-

-

1

Off

Off

Off

Off

Off

Off

Off

On

2

Off

Off

Off

Off

Off

Off

On

Off

3

Off

Off

Off

Off

Off

Off

On

On

4

Off

Off

Off

Off

Off

On

Off

Off

251

On

On

On

On

On

Off

On

On

252

On

On

On

On

On

On

Off

Off

253

On

On

On

On

On

On

Off

On

254

On

On

On

On

On

On

On

Off

255

On

On

On

On

On

On

On

On

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 8 is the Least Significant Bit and switch 1 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 on the switches and add the values of the on switches to obtain the correct node address. (On=1, Off=0)

INTERRUPT REQUEST

IRQ

JP1

JP2

JP3

JP4

JP5

JP6

JP7

JP8

JP9

JP10

JP11

2

Open

Open

Open

Open

Open

Closed

Open

Open

Open

Open

Open

 

3

Open

Open

Open

Open

Open

Open

Open

Open

Open

Open

Closed

 

4

Open

Open

Open

Open

Open

Open

Open

Open

Open

Closed

Open

 

5

Open

Open

Open

Open

Open

Open

Open

Open

Closed

Open

Open

 

6

Open

Open

Open

Open

Open

Open

Open

Closed

Open

Open

Open

 

7

Open

Open

Open

Open

Open

Open

Closed

Open

Open

Open

Open

 

10

Open

Open

Open

Open

Closed

Open

Open

Open

Open

Open

Open

 

11

Open

Open

Open

Closed

Open

Open

Open

Open

Open

Open

Open

 

12

Open

Open

Closed

Open

Open

Open

Open

Open

Open

Open

Open

 

14

Open

Closed

Open

Open

Open

Open

Open

Open

Open

Open

Open

 

15

Closed

Open

Open

Open

Open

Open

Open

Open

Open

Open

Open

DIAGNOSTIC CONFIGURATION

Setting

JP12

Enhanced diagnostics disabled

Pins 1 & 2 Closed

 

Enhanced diagnostics enabled

Pins 2 & 3 Closed

Note: The enhanced diagnostics are compatible only with the driver that was shipped with this card. When the diagnostics are enabled, features such as an ARCnet duplicate Node ID search, are activated.

BOOT ROM

Setting

SW1/1

Disabled

Off

 

Enabled

On

RIM BUFFER ADDRESS CONFIGURATION - LAST FOUR DIGITS

Address

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

SW1/7

SW1/8

xC0O0h

Off

On

On

Off

Off

Off

Off

xC4O0h

Off

On

On

Off

Off

Off

On

xCCO0h

Off

On

On

Off

Off

On

On

xD0O0h

Off

On

On

Off

On

Off

Off

xD4O0h

Off

On

On

Off

On

Off

On

xD8O0h

Off

On

On

Off

On

On

Off

xDCO0h

Off

On

On

Off

On

On

On

xE000h

Off

On

On

On

Off

Off

Off

Notes: Place one digit from the following table in front of the address given above to get the complete Address.

SW3/switch 4 should be set to On for 128KB, or Off for 16KB.

RIM BUFFER EXTENDED ADDRESS CONFIGURATION

Segment

SW3/1

SW3/2

SW3/3

SW3/5

SW3/6

SW3/7

SW3/8

0xxxxh

On

Off

Off

Off

Off

Off

Off

 

1xxxxh

On

Off

Off

Off

Off

Off

On

 

2xxxxh

On

Off

Off

Off

Off

On

Off

 

3xxxxh

On

Off

Off

Off

Off

On

On

 

4xxxxh

On

Off

Off

Off

On

Off

Off

 

5xxxxh

On

Off

Off

Off

On

Off

On

 

6xxxxh

On

Off

Off

Off

On

On

Off

 

7xxxxh

On

Off

Off

Off

On

On

On

 

8xxxxh

On

Off

Off

On

Off

Off

Off

 

9xxxxh

On

Off

Off

On

Off

Off

On

 

Axxxxh

On

Off

Off

On

Off

On

Off

 

Bxxxxh

On

Off

Off

On

Off

On

On

 

Cxxxxh

On

Off

Off

On

On

Off

Off

 

Dxxxxh

On

Off

Off

On

On

Off

On

 

Exxxxh

On

Off

Off

On

On

On

Off

 

Fxxxxh

On

Off

Off

On

On

On

On

Note: Place the digit found in this table in front of the address given on the previous table to get the complete RIM buffer address. A setting other than zero in this table will place the buffer into extended memory at the aforementioned address. For example, a setting of 2 will place the buffer into the 2nd megabyte of extended memory, a setting of C will place the buffer into the 12th megabyte of extended memory. Starting from the base address. Make sure that the next 16 to 128KB of memory (see above notes) are not used.

Important: The software drivers supplied with this card do not support extended memory.

EXTENDED TIMEOUT CONFIGURATION

Distance

Response Time

Reconfiguration

SW2/1

SW2/2

4.8 miles

74.7Ás

840ms

On

On

 

21.0 miles

283.4Ás

1680ms

On

Off

 

42.5 miles

561.8Ás

1680ms

Off

On

 

85.6 miles

1118.6Ás

1680ms

Off

Off

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

I/O BASE ADDRESS

Address

SW2/3

SW2/4

SW2/5

SW2/6

SW2/7

SW2/8

2E0h

On

Off

On

On

On

Off

 

260h

On

Off

Off

On

On

Off

 

290h

On

Off

On

Off

Off

On

 

2B0h

On

Off

On

Off

On

On

 

300h

On

On

Off

Off

Off

Off

 

350h

On

On

Off

On

Off

On

 

380h

On

On

On

Off

Off

Off

 

3E0h

On

On

On

On

On

Off

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

L1

Red

On

Data is being received

L1

Red

Off

Data is not being received

L1

Red

Blinking

Card is reconfiguring

L2

Green

On

Data is being transmitted

L2

Green

Off

Data is not being transmitted

L2

Green

Blinking

Card is reconfiguring