2H22-08R SmartSwitch 2208 User’s Guide Page B-1
APPENDIX B
FE-100TX, FE-100FX, AND FE-100F3
SPECIFICATIONS
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 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 in both positions.
Figure B-1 FE-100TX Pinouts
NOTE
The FE-100TX uses an RJ45 connector supporting Category 5
Unshielded Twisted Pair (UTP) cabling, which has an
impedance of 85 to 111 ohms.
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
FE-100TX
10
16651_05
100
=
x
