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Troubleshooting 21
Troubleshooting
Health LED on the pass-thru module is not on
Cause Action
The pass-thru module is not seated properly. Be sure that the pass-thru module is inserted completely and
seated properly.
The enclosure is not powered up. Be sure that the enclosure is powered up and all the power
connections are intact.
An LED is faulty. Be sure that the pass-thru module is booted.
The pass-thru module is faulty. Send the module for repair.
Health LED on the pass-thru module stays amber for
more than 30 seconds and pass-thru module does
not boot
Cause Action
The Standby Mode Timeout function is
malfunctioning.
Press the Reset button to force the pass-thru module to reboot.
No link LED appears, even after you plug the cable
into the SFP+ module
Cause Action
The cable is not plugged in properly. Ensure that it is plugged in and seated properly at both
ends.
The cable or connector heads are faulty. Replace the cable with another tested cable.
The SFP+ module on the pass-thru module or LED is
faulty.
Examine and replace the cable. If no link LED displays,
determine if the port is transferring data.
•
If yes, the LED is faulty.
•
If no, the SFP+ module might be faulty. Call a service
representative.
The pass-thru module uplink and downlink
connections must be up before the LED illuminates.
The console displays messages if the uplink (SFP+
module) is working but the corresponding downlink
cannot be established.