Appendix B: EPIM Specifications
Page B-6
MicroMMAC Installation Guide
B.5 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 along with DB15 pinouts.
Figure B-5
EPIM-A and EPIM-X (AUI Port)
Pin
1
Logic Ref.
Pin
9
Collision -
2
Col
10
Transmit -
3
Tr
11
Logic Ref.
4
Logic Ref.
12
Receive -
5
R
13
Power (+12 Vdc)
6
Power Return
14
Logic Ref.
7
No Connection
15
No Connection
8
Logic Ref.
Connector Shell: Positive Ground
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