Symmetricom EDGE CLOCK 1000 - Manual (Page 156)

Chapter 6 Maintaining and Troubleshooting the TimeProvider
Preventive Maintenance
156 TimeProvider User’s Guide 097-58001-02 Revision G – April 2008
Preventive Maintenance
The TimeProvider shelf requires minimal preventive maintenance. Take care to
ensure the unit is not exposed to hazards such as direct sunlight, open windows,
water, or extreme heat. See
Environmental Requirements in Pre-Installation Check ,
on page 54, for electromagnetic compatibility conditions that may cause damage.
Table 6-1 lists preventive maintenance measures to be performed periodically. Do
not disassemble components just for the purpose of inspection.
Safety Considerations
Follow your company’s safety guidelines and policies when working on or around
live equipment.
ESD Considerations
Maintenance personnel should wear ESD wrist straps when installing or working on
all TimeProvider equipment and cards. Plug the user-supplied wrist strap into the
TimeProvider shelf. Place IMC and IOC cards as well as the Input and Output
panels into static-free bags when not in use.
Caution: To avoid electromagnetic discharge damage to the
circuitry, never attempt to vacuum the TimeProvider main shelf or
expansion shelf.
Caution: To avoid damage, under no circumstances should the
interior chassis of the TimeProvider be allowed to come in contact
with water.
Table 6-1. Preventive Maintenance
Item Inspection Corrective Action Interval
Chassis Inspect for dirt or foreign
material Clean the exterior of chassis with a
soft dry cloth Periodically
Cables Inspect for pinched, worn
or damaged cable Replace pinched, worn or damaged
cable at the first opportunity Periodically
Connectors Inspect for loose or
damaged connector Tighten loose connectors. If
damaged, replace the connector
and/or cable at the first opportunity Periodically