Cabletron Systems 9C300-1 manual EPIM-A and EPIM-X AUI Port, Pin Number Represents

EPIM-A and EPIM-X (AUI Port)

EPIM-A and EPIM-X (AUI Port)

The EPIM-A is a DB-15 female connector used to attach segments to an external transceiver. The EPIM-X is equipped with dual internal transceivers. It has a DB-15 male connector used to attach segments to an AUI cable. Figure A-6shows both modules.

Figure A-6. The EPIM-A and EPIM-X

Table A-4 lists the DB-15 pinouts.

Table A-4. DB-15 Pinouts

Pin Number	Represents	Pin Number	Represents
1	Logic Ref.	10	Transmit -
2	Collision +	11	Logic Ref.
3	Transmit	12	Receive -
4	Logic Ref.	13	Power (+12Vdc)
5	Receive	14	Logic Ref.
6	Power Return	15	No Connection
7	No Connection	*Connector Shell	Positive Ground
9	Collision -
*Connector Shell:	Protective Ground

A-7