Cabletron Systems 9H423-28 - Manual (Page 43)

A-1
Appendix A
FEPIM Specifications
The 9H423-28 SmartSwitch 9000 module uses a Fast Ethernet Interface Module
(FEPIM) to provide front panel cable connections. FEPIMs are user-installable.
See the section titled Installing an FEPIM in Chapter 2.
FE-100TX
The FE-100TX is an RJ45 connector supporting Unshielded Twisted Pair (UTP)
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 A-1 shows
the pinouts for the FEPIM-100TX in both positions.
Figure A-1. FE-100TX Pinouts
FE-100FX
The FE-100FX shown in Figure A-2 supports multimode fiber optic cabling. The
FE-100FX is equipped with an SC-style port. Table A-1 lists the specifications for
the FE-100FX.
FE-100TX
10
166505
100
x =
Position X
(crossed over)
1. RX+
2. RX-
3. TX+
4. NC 5. NC
6. TX-
7. NC
8. NC
Position =
(not crossed over)
1. TX+
2. TX-
3. RX+
4. NC 5. NC
6. RX-
7. NC
8. NC