User`s guide

Diagnostics and Troubleshooting
7-9
Because every situation is potentially unique and may involve
unique external factors, the corrective actions suggested here
should be considered as guidelines only.
7.5.1 ATX Does Not Power Up
If your ATX does not power up, check each one of the following; if
it still doesn’t power up, contact Cabletron Systems Technical
Support.
• Make sure the power source is operational.
• Make sure the power cord is securely connected.
• Make sure the power supply switch is on.
• Check the power supply fuse.
7.5.2 Module Status LED Not Lit
If the Module Status or PROC LED is off on one of your I/O
modules, follow the steps below:
1. Check the status of ports using LCM.
2. Restart the module.
The module may be restarted by removing and re-inserting the
module, or by taking the module offline and online using
LCM.
For more information, refer to the individual module manuals.
7.5.3 Connectivity Problems
• Check for LED abnormalities, which may help indicate the
source of the problem.
• Check status of ports using LCM.