Cabletron Systems 6H129-08 用户手册
6H128-08 and 6H129-08 User’s Guide
B-1
APPENDIX B
FE-100TX, FE-100FX AND FE-100F3
SPECIFICATIONS
The 6H12X-08 supports three Fast Ethernet Interface Modules:
•
)
•
•
)
This appendix provides the specifications for these modules.
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
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 Pinouts
NOTE
The FE-100TX uses an RJ45 connector supporting Unshielded
Twisted Pair (UTP) cabling, which has an impedance of 85 to
111 ohms.
Twisted Pair (UTP) cabling, which has an impedance of 85 to
111 ohms.
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