Cabletron Systems 2H23-50R 7 FE-100TX Crossover Switch, 8 Cable Pinouts - RJ45 Crossover Cable

Models: 2H23-50R 2H33-37R

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100

Connecting to the Network

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 3-7 FE-100TX Crossover Switch

A schematic of a crossover cable is shown in Figure 3-8. If the wires do not cross over, use the switch on the FE-100TX to internally cross over the RJ45 port.

NOTE:

RX+/RX– and TX+/TX– must share a common color pair.

 

TO

 

 

 

 

 

TO

 

RJ45 Port

 

10BASE-T Device Port

RX+

 

 

 

 

 

 

 

 

 

RX+

1

 

 

 

 

 

 

 

1

RX–

2

 

 

 

 

 

 

 

2

RX–

TX+

3

 

 

 

 

 

 

 

3

TX+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TX–

6

 

 

 

 

 

 

 

6

TX–

 

 

 

 

 

RJ45 to RJ45

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2251-31

Figure 3-8 Cable Pinouts - RJ45 Crossover Cable

Connect an FE-100TX to a twisted pair segment as follows:

1.Ensure that the device connected to the other end of the segment is powered on.

2H23-50R/2H33-37R User’s Guide

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Cabletron Systems 2H23-50R 7 FE-100TX Crossover Switch, 8 Cable Pinouts - RJ45 Crossover Cable, 100 FE-100TX, 2251-31