Справочник Пользователя для Cabletron Systems 2E43-51R

Tighten the two screws on the RJ21 straight cable connector or RJ21 
angle adapter, as applicable, to secure it to the device.

If using the RJ21 angle adapter, plug in the RJ21 right-angled 
connector until the two retaining clips, shown in 

place.

Verify that a link exists by checking that the LINK LED on the 
2E43-51 for that port is on (solid green). If the LINK LED is off, 
perform the following steps until it is on:

Verify that the 10BASE-T device at the other end of the twisted 
pair segment is on and connected to the segment.

Verify that all connectors on the twisted pair segment have the 
proper pinouts and check the cable for continuity.

Check that the twisted pair connection meets the dB loss and cable 
specifications outlined in 

.

If a link is not established, contact Cabletron Systems Global Call 
Center. Refer to 

Repeat steps 1 through 4 above, until all connections have been made.

The FE-100TX supports Category 5 UTP cabling, which has an 
impedance of 85 to 11 ohms.

An FE-100TX installed in port slot 5 and/or 6 has an internal crossover 
switch. When connecting a workstation, use a straight-through cable and 
set the Fast Ethernet Interface Module crossover switch shown in 

 to the crossed over position marked with X. When connecting 

networking devices, such as another bridge, repeater, or router, use a 
straight-through cable and set the Fast Ethernet Interface Module 
crossover switch shown in 

 to the straight-through position (not 

crossed over), marked with =.

The cable pinouts for a 25 pair cable (RJ21) can be found in the 
Cabletron Systems 

Cabling Guide. Refer to 

 for 

details on how to obtain this document.