Cabletron Systems NBR-620, NBR-420 B.6 EPIM-A AND EPIM-X, Figure B-5 EPIM-A and EPIM-X, AUI Port

Appendix B: EPIM Specifications

B.6 EPIM-A AND EPIM-X

The EPIM-A is a DB15 female connector used to attach segments to an external transceiver. The EPIM-X is equipped with dual internal transceivers. It has a DB15 male connector used to attach segments to an AUI cable. Figure B-5 shows both modules.

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Figure B-5 EPIM-A and EPIM-X, AUI Port

	Table B-1	DB15 Pinouts
Pin 1	Logic Ref.	9	Collision -
2	Collision +	10	Transmit -
3	Transmit +	11	Logic Ref.
4	Logic Ref.	12	Receive -
5	Receive +	13	Power (+12Vdc)
6	Power Return	14	Logic Ref.
7	No Connection	15	No Connection
8	Logic Ref.

Connector Shell: Protective Ground

Page B-6 NBR-SERIES Installation Guide