Symmetricom 1100 用户手册
Chapter 6 Maintaining and Troubleshooting the TimeProvider
Preventive Maintenance
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
ensure the unit is not exposed to hazards such as direct sunlight, open windows,
water, or extreme heat. See
in
on page 54, for electromagnetic compatibility conditions that may cause damage.
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.
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.
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.
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.
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
material
Clean the exterior of chassis with a
soft dry cloth
soft dry cloth
Periodically
Cables
Inspect for pinched, worn
or damaged cable
or damaged cable
Replace pinched, worn or damaged
cable at the first opportunity
cable at the first opportunity
Periodically
Connectors
Inspect for loose or
damaged connector
damaged connector
Tighten loose connectors. If
damaged, replace the connector
and/or cable at the first opportunity
damaged, replace the connector
and/or cable at the first opportunity
Periodically