Cisco Cisco 1 GHz GainStar Amplifier Installationsanleitung
No Reverse RF Signal
No Reverse RF Signal
The reverse RF signal can be measured at the GainStar Line Extender module
reverse input and reverse output test point.
No Reverse RF Signal Troubleshooting Table
Before you begin troubleshooting for no reverse RF signal, verify that the GainStar
Line Extender is receiving the proper reverse RF input signals from the downstream
amplifiers at the GainStar Line Extender reverse input and reverse output test
points.
Important: You cannot balance the GainStar Line Extender without the proper
Important: You cannot balance the GainStar Line Extender without the proper
reverse RF input signals.
Possible Cause
Solution
No reverse RF signal at the reverse input
test point.
Verify the connection of RF Cable
Connector.
Verify that the line extender is receiving the
Verify that the line extender is receiving the
proper reverse RF input signals from the
downstream amplifiers.
Important: You cannot balance the line
Important: You cannot balance the line
extender without the proper reverse RF
input signals.
There is proper reverse RF signal at the
reverse input test point, but no signal at the
reverse output test point.
Verify that the line extender module is
receiving the proper forward RF signal.
Refer to No Forward RF Signal.
Verify that all the proper accessories, pads,
Verify that all the proper accessories, pads,
EQs, Reverse Amplifier, and signal director
are firmly installed in the correct locations.
Verify that the factory installed accessories
Verify that the factory installed accessories
are firmly installed in the correct locations.
Verify that the 3-stage switch (if applicable)
Verify that the 3-stage switch (if applicable)
or its jumpers are properly and firmly
installed.
Replace the reverse amplifier module.
Replace the reverse amplifier module.
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