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HSIM-FE6 User’s Guide B-1
APPENDIX B
FEPIM SPECIFICATIONS
This appendix provides specifications for the Fast Ethernet (Port)
Interface Modules. Cabletron Systems reserves the right to change these
specifications at any time without notice. The HSIM-FE6 supports the
following Fast Ethernet (Port) Interface Modules: the FE-100TX, the
FE-100FX, and the FE-100F3.
B.1 FE-100TX
The FE-100TX uses an RJ45 connector supporting Category 5
(85 – 111 ohms) Unshielded Twisted Pair (UTP) and Shielded Twisted
Pair (STP) cabling.
The slide switch on the FE-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 B-1 shows the pinouts for the FE-100TX with the switch in
each position.
Figure B-1 FE-100TX Pinouts
FE-100TX
10
100
=
x
fecrossover
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