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IRMATRAC TOKEN-RING ADAPTER/CONVERTIBLE

DIGITAL COMMUNICATIONS ASSOCIATES, INC. (DCA)

IRMATRAC TOKEN-RING ADAPTER/CONVERTIBLE

4MBPS-ONLY RING INTERFACE MODULE (RIM)

NIC Type

Token-Ring

Transfer Rate

4/16Mbps

Data Bus

16-bit ISA/MCA

Topology

Ring

Wiring Type

Unshielded twisted pair

Shielded twisted pair (DB-9 port)

Boot ROM

Available

I/O BASE ADDRESS

Address

JP1

0A20 - 0A3Fh

Pins 1 & 2 closed

 

1A20 - 1A3Fh

Pins 2 & 3 closed

CONNECTIONS

Purpose

Location

Ring Interface Module (RIM)

CON1

CABLE TYPE

Type

JP2A - D

Unshielded twisted pair

Pins 1 & 2 closed

 

Shielded twisted pair (DB-9 port)

Pins 2 & 3 closed

CONNECTIONS

Purpose

Location

Backplane Adapter

CON1

MISCELLANEOUS NOTES

Although the backplane adapter can have a 4/16Mbps or 4Mbps-only Ring Interface Module (RIM), the 4Mbps-only RIM is diagrammed because the 4/16Mbps RIM does not have jumpers.