Cisco GainMaker Optoelectronic Node 1GHz with 65 86 MHz Split Installation Guide
No Reverse RF Signal
No Reverse RF Signal
The reverse RF signal can be measured at the amplifier module reverse input test
point and the reverse optical transmitter output test point.
No Reverse RF Signal Troubleshooting Table
Before you begin troubleshooting for no reverse RF signal, verify that the amplifier is
receiving the proper reverse RF input signals from the downstream amplifiers.
Important: You cannot balance the amplifier without the proper reverse RF input
Important: You cannot balance the amplifier without the proper reverse RF input
signals.
Possible cause
Solution
No reverse RF signal at the reverse
input test point(s).
Verify that the amplifier is receiving the proper
reverse RF input signals from the downstream
amplifiers.
Important: You cannot balance the amplifier
Important: You cannot balance the amplifier
without the proper reverse RF input signals.
There are proper reverse RF signals
at the reverse input test points, but
no signal at the reverse transmitter
output test point.
Verify that the amplifier module is receiving
the proper AC and DC voltages. Refer to No
AC Power (on page 85) and No DC Power (on
page 87).
Verify that all the proper accessories, pads, and
EQs are firmly installed in the correct locations.
Verify that the factory installed accessories are
firmly installed in the correct locations.
Verify that the reverse switch (if applicable) or
its jumpers are properly and firmly installed.
Note: Verifying factory installations involves
Note: Verifying factory installations involves
removing the amplifier module cover. Reinstall
the amplifier module cover properly or RF
signal degradation may result.
Check/replace the wiring harness.
Replace the amplifier module.
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