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TOKENCOMBO-16 S/U (ISA)

ALTA RESEARCH CORPORATION

TOKENCOMBO-16 S/U (ISA)

NIC Type

Token-Ring

Transfer Rate

4/16Mbps

Data Bus

16-bit ISA

Topology

Ring

Wiring Type

Unshielded twisted pair

Shielded twisted pair (DB-9 port)

Boot ROM

Available

COMPATIBILITY MODE

Setting

JP1

Disabled

Closed

 

Enabled

Open

Note: If the system in which the card is to be installed is an 80286 using an older C & T or VLSI chipset and the card is not loading the network shell properly, compatibility mode should be enabled (JP1 open). On some revisions of this card, JP1 might not be present.

BASE MEMORY ADDRESS

Address

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

 

C0000h

On

Off

Off

Off

Off

Off

 

C2000h

On

Off

Off

Off

Off

On

 

C4000h

On

Off

Off

Off

On

Off

 

C6000h

On

Off

Off

Off

On

On

 

C8000h

On

Off

Off

On

Off

Off

 

CA000h

On

Off

Off

On

Off

On

CC000h

On

Off

Off

On

On

Off

 

CE000h

On

Off

Off

On

On

On

 

D0000h

On

Off

On

Off

Off

Off

 

DC000h

On

Off

On

Off

Off

On

Note: If using two cards in the same system, the card set to secondary should use address DC000h as its default.

SHARED RAM SIZE

Size

SW1/7

SW1/8

 

8KB

Off

Off

16KB

Off

On

 

32KB

On

Off

 

64KB

On

On

INTERRUPT REQUEST

IRQ

SW2/1

SW2/2

2/9

Off

Off

 

3

Off

On

 

6

On

Off

 

7

On

On

NETWORK SEGMENT SPEED

Speed

SW2/3

16Mbps

On

 

4Mbps

Off

Note: All cards on the network segment must have this option set identically.

PRIMARY/ALTERNATE MODE

Setting

Address

SW2/4

Primary

A20h

Off

 

Alternate

A24h

On

Note: If two cards are to be used in a single system, one of the cards must be set to primary and the other one must be set to alternate.

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

LED1

Red

On

Data is being transmitted or received

LED1

Red

Off

Data is not being transmitted or received

MISCELLANEOUS NOTES

The card automatically senses which network connector is being used.