Ssu-2000E Troubleshooting Procedures - Symmetricom SSU-2000e User Manual

Chapter 5 Maintenance and Troubleshooting
Troubleshooting
Table 5-3. SSU-2000e Troubleshooting Procedures
Symptom
No LED lit on any
module
Unable to
communicate with
system
Status LED on
Input module is
amber
136 SSU-2000e User's Guide
Probable Cause
No power to unit
Both A and B fuses are blown
Loss of ground
Loose power cabling to unit
Main shelf is faulty
Loose cabling
Bad peripheral device
configuration
Improperly installed or faulty
Comms module
Software emulator is configured
to Com1, but cable is physically
attached to Com2
Software emulator is set to 9600
baud, but system baud rate is
19,200.
Bad serial port(s)
Firmware compromised
Troubleshooting Procedure/Corrective
Action
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 that cabling is securely fastened.
Check that communication device is
properly configured (refer to
a Connection, on page 133,
information).
Re-seat the Comms module.
Press the RST button located on the front
panel of module.
If problem is not rectified, call
Symmetricom Global Services.
Either attach cable to Com1 or
re-configure software emulator to Com2.
Change to the software emulator to
19,200 baud.
Connect to another serial port. If none of
the ports are functional, call
Symmetricom Global Services.
Re-seat the Input module. If the problem
is not rectified, call Symmetricom Global
Services.
12713140-002-2 Revision E – October 2006
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