Troubleshooting Symptoms - Symmetricom TimeProvider 5000 User Manual

Troubleshooting
Symptoms, LEDs, and System Messages can all be very helpful in troubleshooting
the TP5000. Use the "show alarm" and "show event" commands to view system
messages.
Table 6-2 presents troubleshooting information for the TP5000 based on symptoms.
Table 6-3 presents diagnostic information for the IOC card using on front panel
LEDs. Table 6-4
panel LEDs. See
messages and associated corrective actions.
Table 6-2. Troubleshooting Symptoms
Symptom
No LED lit on any module
No PTP flow between
TP5000 Grandmaster
and client
If LED for port is OFF:)
(
098-00028-003 Revision A – June, 2011
presents diagnostic information for the IMC card based on front
Table A-1 in Appendix A, System Messages
Probable Cause
No power to unit
Both A and B fuses on
the branch over-current
protection unit are blown
Loss of ground
Loose power cabling to
unit
Chassis is faulty
Cable connections
Ethernet Auto Negotiation
settings
Chapter 6 Maintenance and Troubleshooting
for Event IDs, system
Troubleshooting Procedure /
Corrective Action
Check power supply
Check to ensure that UPS (if applicable) is
operating correctly
Remove both fuses and replace
Re-attach ground wires
Check that power cables to unit are
securely fastened
Contact Symmetricom Global Services
Check the cable connections and SFP
connections.
Verify that SFP connector models are
recommended and supported.
Check that either Ethernet Auto
Negotiation is enabled or that speed has
been set to a compatible level with the
connecting network element (
eth-config
command).
Make sure that only full-duplex network
devices are used. The TP5000 does not
support half-duplex devices, such as
hubs, for PTP connections.
TimeProvider 5000 User's Guide 329
Troubleshooting
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