Hardware Installation
6. Troubleshooting
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6.2
Common Troubleshooting Procedures
Fault 1: The AC power module does not work.
Fault Description:
The Status LED of each service module is OFF, the Power LED of the fan tray is OFF, and the fan
does not work.
The LED on the panel of the power module is OFF. The fan does not work.
Troubleshooting:
First place the switches of all the power modules to OFF. Check if the cables of the cabinet
have been correctly connected. Check whether the power cables are tightly connected to the
cabinet power sockets and power modules. Check whether the power modules are installed
correctly. If necessary, pull out the power modules and check whether the connectors on the
backboard of the power system are tightened.
Fault 2: An exception occurs to the LEDs when service modules are powered on.
Fault Description:
The Status LED of the service module is OFF, blinking, or RED. The Link/ACT LED of the service
module is solid ON when no network cable or fiber is plugged.
Troubleshooting:
Check if the service module is firmly inserted. If so, install the service module again and ensure
that it is inserted into place before you tighten the fastening screws. If the service module still
does not work, check if the connector of the slot on the backplane is loose. If yes, insert the
service module to another slot for a try. If the slot and connection are not the cause, return the
service module for repair.
Fault 3: The LED is abnormal after a service module works for some time.
Fault Description:
The Status LED of the service module is OFF or RED. The Link/ACT LED of the service module is
solid ON when no network cable or fiber is plugged. The fault remains after restart.
Troubleshooting:
Check if the service module gets loose. If so, install the service module again and ensure that it
is inserted into place before you tighten the fastening screws. If the module still does not work,
check if the connector of the slot on the backplane is loose and check if the slide rail of the slot
is deformed. If so, insert the service module to another slot for a try. If the slot and connection
are not the cause, return the service module for repair.
Fault 4: The LED of the supervisor module is abnormal.
Fault Description:
The LED of the supervisor module becomes abnormal after the supervisor module is powered
on or works for some time. For example, the Status LED is blinking or OFF, and the Alarm LED is
red.
