Cisco Cisco OptoStar II Driver Amplifier Guía De Instalación
General Troubleshooting Information, Continued
Alarm
Possible Cause
Servicing Instruction
No RF Signal
Output
No optical output
power in reverse
transmitter of the
node
Splitter failure
If optical input power
and test point output
signal meet
specifications, but no
signal at RF output,
then connector failure
at the RF output
If optical input power
meets specifications,
but no signal at test
point and RF output,
then amplifier module
failure in the reverse
receiver
Check the optical output
power in reverse
transmitter of the node
Check splitter for optical
signal
Check whether the RF
connectors match, and
check for connector
failure
Measure whether the
optical input power meets
specifications
Measure whether the test
point output signal meets
specifications
Measure whether the
signal strength at RF
signal output meets
specifications
If the problem persists,
contact the manufacturer
for servicing
High Module
Temperature
High ambient
temperature lead to
insufficient heat
dissipation
Poor chassis
ventilation
Chassis fan failure
Ensure good ventilation
Put the chassis in a place
with good ventilation
In case of the chassis fan
failure, replace the fan, or
contact the manufacturer
for servicing
CAUTION:
Do not open the enclosure of this module in any case. Opening the enclosure
may result in equipment damage, and you may lose the warranty eligibility.
may result in equipment damage, and you may lose the warranty eligibility.
4-6
Troubleshooting
OL-29663-03