Cisco Cisco OptoStar II 1550nm EDFA Guía De Instalación
General Troubleshooting Information, Continued
Alarm
Possible Cause
Servicing Instruction
No RF output
The forward optical
transmitter module
has no optical output
power
Link optical
distributor failure
If the optical input
power and output
signal at the test point
meet specifications,
and RF output port
has no signal, it
indicates failure of the
F connector at the RF
output port.
If the optical input
power meets
specifications, and the
test point and RF
output port have no
signal, it indicates
failure of the amplifier
module inside the
forward receiver
module.
Inspect the optical
output power of the
forward optical
transmitter module to
make it within the
correct range
Check if link optical
distributor has optical
signals
Check if RF connector
matches and
troubleshoot conenctor
failure
Measure if the optical
input power meets the
specifications.
Measure if the output
signal at the test point
meets specifications
Measure if the signal
strength at the RF output
port meets specifications
Contact the
manufacturer for
servicing when there is
still no RF output
High Module
Temperature
High ambient
temperature leading
to insufficient heat
dissipation
Poor chassis
ventilation
Chassis fan failure
Make sure the ambient
temperature is within
the working temperature
range of the module.
Ensure good chassis
ventilation
In case of 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-29662-03