Cabletron Systems ELS10-26TX User Manual

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5-6
ELS10-26 Diagnostics and Troubleshooting
5.4  TROUBLESHOOTING
This section lists several situations that could happen while using 
the ELS10-26, and suggests appropriate action. Because every 
situation is potentially unique, the corrective actions suggested 
here should be considered as guidelines only.
5.5  ELS10-26 DOES NOT POWER UP
If your ELS10-26 does not power up, check each one of the 
following:
 • Make sure the power source is operational.
 • Make sure the power cord is securely connected.
If the ELS10-26 still does not power up, contact Cabletron Systems 
Global Call Center. Refer to Section 1.2 for more information.
5.5.1  Connectivity Problems
 • Check for LED abnormalities.
 • Check port status using LCM.
 • Check for loose port connections.
 • Check to see if the number of carrier losses is increasing using 
LCM. This indicates that the connection is suspect.
 • Check to see if the number of total collisions has dramatically 
increased using LCM.