APPENDIX B

FE-100TX, FE-100FX AND FE-100F3

SPECIFICATIONS

The 6E12X-26 supports three Fast Ethernet Interface Modules:

FE-100TX

FE-100FX

FE-100F3

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) cabling with an impedance between 85 and 111 ohms.

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-1shows the pinouts for the FE-100TX in both positions.

Position X (crossed over)

1.RX+ 5. NC

2.RX- 6. TX-

3.TX+ 7. NC

4.NC 8. NC

x

 

 

 

=

 

 

 

 

 

10

100

FE-100TX

Position =

(not crossed over)

1.TX+ 5. NC

2.TX- 6. RX-

3.RX+ 7. NC

4.NC 8. NC

16651_05

Figure B-1 FE-100TX Pinouts

6E128-26, 6E138-25, 6E129-26 and 6E139-25 User’s Guide

B-1

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Image 169
Cabletron Systems 6E123-26, 6E133-25, 6E122-26, 6E132-25 manual Figure B-1 FE-100TX Pinouts

6E122-26, 6E123-26, 6E132-25, 6E133-25 specifications

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