Crystal Vision
Troubleshooting
5 Troubleshooting
5.1 Card edge monitoring
The green LED on the front edge of the card provides power rail monitoring. The red LED, if
fitted, currently has no function
.
FTX-VF front edge
5.2 Basic fault finding guide
WARNING
:
Although Crystal Vision optical products contain class 1 devices that have been
designed to be safe under all circumstances, you are advised not to look directly into any
vacant optical outlet. As the visible spectrum is well below the wavelengths used by the FTX-
VF there is no point looking into the end of a cable to see if there is a signal.
Power OK LED not illuminated:
Check that the frame PSU is functioning – refer
to the ‘Vision’ frame manual for detailed information.
There is no optical output
:
With
VisionWeb or a remote panel, check that the
Output ‘Enable’ check-box is ticked on the ‘Control’ page. Check that there is no
‘level’ warning on the ‘Output Warnings’ page. Check that a valid input is present and
that any cabling is intact and that there is an input present indication and of the
expected format.
Poor video signal at receiving end:
Check that the optical connectors have not
become contaminated with dust etc. The maximum distance that can be achieved
depends on fibre quality and the number of splices/connectors. Distances in excess
of 10km are possible with single-mode fibre at 3Gb/s but the maximum achievable
FTX-VF User Manual R1.0
12
09 January 2017