Cabletron Systems 2E43-51R ユーザーズマニュアル
2E43-51/2E43-51R User’s Guide
B-1
APPENDIX B
FE-100TX, FE-100FX, AND FE-100F3
SPECIFICATIONS
The 2E43-51 supports three Fast Ethernet Interface Modules:
•
)
•
•
)
This appendix provides the specifications for these modules.
B.1
FE-100TX
The FE-100TX uses an RJ45 connector supporting Category 5
Unshielded Twisted Pair (UTP), which has an impedance of 85 to
111 ohms, and Shielded Twisted Pair (STP) cabling.
Unshielded Twisted Pair (UTP), which has an impedance of 85 to
111 ohms, 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
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
shows the pinouts for the FE-100TX in both positions.
Figure B-1
FE-100TX RJ45 Pinouts
Position X
(crossed over)
(crossed over)
1. RX+
2. RX-
3. TX+
4. NC
2. RX-
3. TX+
4. NC
5. NC
6. TX-
7. NC
8. NC
6. TX-
7. NC
8. NC
Position =
(not crossed over)
(not crossed over)
1. TX+
2. TX-
3. RX+
4. NC
2. TX-
3. RX+
4. NC
5. NC
6. RX-
7. NC
8. NC
6. RX-
7. NC
8. NC
FE-100TX
10
16651_05
100
=
x