Cable Configuration

Make sure the transceiver cable does not exceed the maximum lengths described in Table C-3. Also, follow the configuration rules listed below.

Table C-3. Maximum Cable Lengths

From

To

Cable Type

Maximum

Cable Length

 

 

 

 

 

 

 

Baseband

Bridge

Ethernet V2.0 or

38 m (125 ft)

Transceiver

Module

IEEE 802.3

 

 

 

 

 

Baseband

Bridge

Office Transceiver

12 m (39.4 ft)

Transceiver

Module

Cable (High

See Cable

 

 

Attenuation)

Rules

 

 

 

 

Troubleshooting Transceiver Cables

This section describes some of the more common problems you may encounter with transceiver cables and some possible solutions.

Symptoms of Bad Transceiver Cables

False or excessive collisions

Jabber condition on Bridge Module

Receive Errors (CRC and Alignment)

Severe degradation of system performance

Causes

Improper grounding (pin 1 vs. pin 4).

Bad ground:

C - 6 ONline Ethernet Bridge Module Installation and Operation Guide

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3Com 5102B-EE Cable Configuration, Troubleshooting Transceiver Cables, Symptoms of Bad Transceiver Cables, Causes