Carrier Grade GroomerII – Installation Guide
2.8
Basic fault finding
The following list provides examples of possible reasons for the unit not operating
correctly.
Symptom
Possible cause
Unit does not power up
Check power cabling and fuses.
Unit generates multiple
audible tones
This denotes a serious internal fault that is non-
recoverable. Contact supplier to determine
service options.
Unit displays Fault
indicator on front panel
TBS
Unit displays Error
indicator on front panel
TBS
E1/T1 trunk non-
operational
Check layer 1 information via Status Monitor.
Possible cable disconnection, network/user
protocol configuration or incorrect TDM clock
recovery/synchronisation configuration.
IP Signalling interface
non-operational
Check cabling and IP address.
No VoIP traffic
Check cabling and IP address.
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