User`s guide

EPIM Specifications
A-6
EPIM-A and EPIM-X (AUI Port)
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 A-5 shows both
modules.
Figure A-5. The EPIM-A and EPIM-X
Table A-4 lists the DB15 pinouts.
*
Connector Shell: Protective Ground
Table A-4. EPIM-A and EPIM-x 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 -
EPIM-A
PWR
SQE
EPIM-X