Specifications; Fe-100Tx; B.1 Fe-100Tx - Cabletron Systems 2208 User Manual

FE-100TX, FE-100FX, AND FE-100F3
This appendix provides specifications for the FE-100TX, FE-100FX, and
FE-100F3 Fast Ethernet Interface Modules that are supported by
the 2H22-08R.
B.1

FE-100TX

The FE-100TX uses an RJ45 connector supporting Category 5
NOTE
Unshielded Twisted Pair (UTP) cabling, which has an
impedance of 85 to 111 ohms.
The slide switch on the FE-100TX determines the crossover status of the
cable pairs. If the switch is on the
over. If the switch is on the
over. Figure B-1
Position X
(crossed over)
1. RX+
2. RX-
3. TX+
4. NC
2H22-08R SmartSwitch 2208 User's Guide
APPENDIX B

SPECIFICATIONS

side, the pairs are not internally crossed
=
shows the pinouts for the FE-100TX in both positions.
5. NC
6. TX-
7. NC
8. NC
Figure B-1 FE-100TX Pinouts
side, the pairs are internally crossed
X
Position =
(not crossed over)
1. TX+
x
=
2. TX-
10
100
3. RX+
FE-100TX
4. NC
5. NC
6. RX-
7. NC
8. NC
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Page B-1