Cabletron Systems SEHI100TX-22 - Manual (Page 77)

SEHI100TX User’s Guide A-1
APPENDIX A
EPIM SPECIFICATIONS
A.1 EPIM SPECIFICATIONS
EPIMs enable the connection of the SEHI to the network using different
media types.The SEHI100TX-22 supports the EPIM-100TX,
EPIM-100FX, and the EPIM-100FMB. This appendix provides the
specifications for each EPIM.
A.1.1 EPIM-100TX
The EPIM-100TX is an RJ45 connector supporting Unshielded Twisted
Pair (UTP) cabling.
The slide switch on the EPIM-100TX determines the crossover status of
the cable pairs. If the switch is on the
X side, the pairs are internally
crossed over. If the switch is on the = side, the pairs are not internally
crossed over. Figure A-1 shows the pinouts for the EPIM-100TX in both
positions.
Figure A-1 EPIM-100TX Pinouts
Position =
(not crossed over)
1. TX+
2. TX-
3. RX+
4. NC 5. NC
6. RX-
7. NC
8. NC
Position X
(crossed over)
1. RX+
2. RX-
3. TX+
4. NC 5. NC
6. TX-
7. NC
8. NC
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