Table of Contents
Advertisement
5
p
r o g r a m m i n g
5.1 p
r e pa r at i o n
• Test the software versions of the head-end station and the QAM module and
update them if necessary. The current software versions can be found on the
website "www.triax.com".
• Connect the test receiver to the modulator output on the QAM module
the RF output on the output collector if it is already connected (page 11).
• Adjust the test receiver to the output channel / output frequency of the chan-
nel strip to be set.
• Switch on the channel strip (modulator) if necessary (page 18). For each chan-
nel strip, there is an status LED which indicates if the channel strip is switched
on.
• Balance the output levels of the channel strips "A" and "B" and level them
to the output levels of the modulators of other modules used if the difference
in level is ≥ 1 dB (page 18).
5.2 n
ot e s
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
the system level at 64 QAM, and by 4 dB compared to analogue cassettes at
256 QAM.
o n
l e v e l
s e t t i n g
Status LEDs
Channel strip A
Channel strip B
Channel strip C
Channel strip D
- 13 -
or to
D
CGS-2 764 C
Advertisement
Table of Contents
