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Maintenance and Troubleshooting
Responding to SSU-2000 Alarms
Responding to SSU-2000 Alarms
The SSU-2000 monitors various system parameters and stores this information as
alarms and event messages which is extremely useful in troubleshooting the
system. If an alarm occurs, follow the troubleshooting procedures in
Troubleshooting, on page 115, to clear the alarm.
Preventive Maintenance
The SSU-2000 requires no preventive maintenance. Care should be taken to
ensure the unit is not exposed to hazards such as direct sunlight, open windows, or
extreme heat. See
for other conditions that may cause damage.
Should the unit require cleaning, the exterior chassis may be wiped off using a soft
cloth dampened with mild soapy water.
Caution: To avoid damage to the unit, under no circumstances
should the interior chassis of the SSU-2000 be allowed to come in
contact with water.
Caution: To avoid damage to the unit, never attempt to vacuum the
interior of the SSU-2000.
Caution: To avoid the possibility of the lithium battery exploding in
the Communications module or Clock modules, do not replace the
battery. Return the entire module to Symmetricom Global Services
for battery replacement and disposal.
Caution: To avoid electrostatic discharge (ESD) and damage to the
internal circuitry, never attempt to vacuum the interior of the
SDU-2000e. If damaged, return the unit to Symmetricom Global
Services for corrective service.
112 SSU-2000 User's Guide
Electromagnetic Interference (EMI)
Caution: To avoid personal injury and electrostatic discharge
(ESD) damage to equipment, follow the ESD precautions as listed
in this guide.
Considerations, on page 61,
12713020-002-2 Revision D – April 2004
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Table of Contents
Troubleshooting
