User guide

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Compaq Netelligent 1009B 10Base-T Hub User Guide
Writer:
Chris Seiter
Project:
Appendix A: Troubleshooting
Comments:
File Name:
1009B_A.DOC
Last Saved On:
5/22/97 8:30 AM
Appendix A
Troubleshooting
Diagnosing Hub Indicators
You can easily monitor the Netelligent 1009B hub using its comprehensive
front panel LED indicators. These indicators help you identify problems the hub
may encounter. This section describes common problems and possible
solutions. If these suggestions do not solve your problem, contact your Compaq
Authorized Reseller.
Symptom: Power indicator does not light.
Cause: Defective power supply or Power LED.
Solution: Have the hub’s power supply or Power LED replaced.
Symptom: Port Partition LED lights yellow.
Causes:
1. Hub has partitioned RJ-45 or BNC port.
2. Workstation’s network adapter, cable or hub port is defective.
3. If BNC cabling is used, the BNC connector may not be terminated.
Solutions:
1. If port partitioning has occurred, the hub automatically enables the port
when the fault is corrected.
2. The most common cause of disconnection from a network or port
partitioning is a defective network adapter or cable connection. Check
the corresponding cable connections or the workstation’s network
adapter for possible defects. Replace the defective cable or adapter.
3. If a BNC cable connection is used, be sure the open ends of the BNC
segment are properly terminated with 50-ohm terminators.
NOTE
: The BNC Partition LED also lights if the BNC port is not used (that is, no BNC cable
connected). Ignore the BNC Partition LED if you did not connect a BNC cable.