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26 C1645M-A (9/06)
Troubleshooting
LED indicators on the front panel of the FT85041 transmitter/FR85041 receiver allow you to monitor
signal status, laser status, data activity, and operating power. Table C provides information about the
front-panel indicators and associated troubleshooting guidelines.
Table C. Troubleshooting with Front-Panel Indicators
Indicator Color Meaning Possible Cause Corrective Action
Power LED (Pelco badge)
Blue Pelco logo
lights.
Power is being
applied to the
module.
– No action required.
Blue Pelco logo
does not light.
Power is not being
applied to the
module.
Power connection is faulty. Check power connection.
If module is rack mounted,
reseat module or power
supply as necessary.
Power supply has failed. Replace power supply.
Loss of power occurs due to
tripped circuit breakers,
blown fuses, or faulty
electrical service.
Check circuit breakers, fuses,
or electrical service as
necessary.
Video Present LED
Green Incoming video
signal is present on
the channel.
— No action required.
Red on transmitter Incoming video
signal is not present
on the channel.
Video source is not
powered on.
Check power connection to
the video source.
Video source is not
connected to the
transmitter.
Check BNC connections.
Coaxial cable is defective. Replace cable.
Red on receiver Incoming video
signal is not present
on the channel.
Optical signal is not being
received from the trans-
mitter. Optic Fault LED is
also red.
Refer to the Optic Fault LED -
Optical Signal Status section
in this table.
Video source is not
powered on.
Check power connection to
the video source.
Video source is not
connected to the
transmitter.
Check BNC connections.
Coaxial cable connected to
the transmitter is defective.
Replace cable.
(Continued on next page)
C1645M-A.book Page 26 Wednesday, September 13, 2006 3:07 PM