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Pump current change a
lot, pump current alarm
Pump
output
optical
power decreases, output
optical power alarm
Pump laser refrigeration
current
high,
TEC
current alarm
Pump laser temperature
high, pump temperature
alarm
1. Pump laser characteristic change
2. Internal
circuit
deviation
3. Pump laser damaged
1. Internal
circuit
deviation
2. Pump laser degradation
3. Pump laser damaged
1. EDFA environment temperature
too high
2. Pump
laser
refrigeration
invalid
3. Pump laser damaged
1. environment temperature too
high
2. Pump
laser
refrigeration
invalid
11
1.
Check
temperature is too high.
detection
The working temperature
of
chassis
0-50℃. Usually, when the
detection
ventilation is not good, the
temperature
chassis is much higher
than
temperature.
2. Check the chassis Heat
is
dissipation
environment whether is
good.
3. Whether the ventilation
holes are blocked on both
sides of the chassis.
4. Whether the EDFA is
placed
is
equipment with the heat
source up and down, and
the
distance
equipment is less than
20mm.
User's manual
environment
is
within
inside
the
environment
ventilation
between
the
of
the
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