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CC2CT 800 C
5
P
rogramming
5.1 P
rePar ation
• Test the software versions of the head-end station and the cassette and up-
date them if necessary.
The current software versions can be found on the website "
www.triax.com
".
• Connect the test receiver to the RF output or the test output of the head-end
station.
• Set the output channel / output frequency of the cassette (page 19) and adjust
the TV test receiver to this channel / frequency.
• Switch on the channel strip (modulator) if necessary (page 19). For each chan-
nel strip, there is a status LED which indicates if the channel strip is switched
on (
5
,
8
page 11).
• Balance the output levels of the channel strips "
A
" and "
B
" if the difference
in level is
≥
1 dB (page 19).
5.2 n
otes
on
level
set ting
In order to prevent interference within the head-end station and the cable sys-
tem, the output level of the cassette must be decreased by 10 dB compared to
an analogous level at 64 QAM, and by 4 dB compared to analogue cassettes
at 256 QAM.
• Measure the output levels of the other cassettes and tune them to a uniform
output level using the appropriate level controls or software dependent on
the head-end station used. Please regard the assembly instructions of the
respective head-end station.
—> Avoid wide differences in level at the inputs!
