User Manual
Modular Multi-service Integrated Optical Transmission Multiplexer
23
3) Necessary anti-static measures shall be taken during installation,
application, and maintenance of the equipment. Therefore, the rack
should be grounded, to strengthen its anti-inference and
thunder-proof capacity. Separately set working ground and protection
ground should be provided prior to use of equipment, and a
satisfactory grounding system shall be ensured. The connection
mode (for rack-mounted type) is given as below:
VIII. Fault Diagnosis
When alarm occurs, all of first it shall be located, and judged as to if it
is a failure with equipment or with transmission line based on display of
alarm on the panel, before corresponding treatment is made.
1. Failure with Power Supply
Effect
Cause
Judgment & Solution
Abnormal
Power Supply
Power Supply not in
compliance with
requirement
Check if power supply is in
compliance with requirement
or not.
Power switch not yet
opened
Open power supply switch.
Power connection broken or
bad contact
Replace power supply
connection.
Fuse inside power supply
socket broken
Replace fuse.
GND
GND -48V
RACK
POWER
SWITCH
ANTISTATIC
FLOORBOARD
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