GSS HDM 660 T, Руководство по сборке

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- 7 - HDM 660 T
tps
module funCtions
After decoding QPSK-modulated signals, the demodulated data streams can
be accessed via the integrated TPS module. These data streams, also called
transport streams, contain several stations in all their components (video, au-
dio, data and service information), which can be changed using the TPS mod-
ule.
In the station filter individual stations can be (de-)activated to fill the output
data rate defined with the COFDM settings.
The transport stream contains data in the form of tables which the receiv-
ers evaluate and require for convenient use. The TPS module can adjust the
"Network Information Table" (NIT) to accommodate the new station data. The
"NIT" contains data which is required by the set-top box for the automatic
search feature.
3 i
nstallation
– Ensure the head-end station is mounted so it will not be able to vibrate.
Avoid, for example, mounting the head-end station onto a lift shaft or any
other wall or floor construction that vibrates in a similar way.
– Before installing or changing a module, switch off the head-end station or
unplug the power cable from the mains power socket.
Take measures to protect against ESD!
• Open the housing of the head-end station in accordance with the assembly
instructions for the STC 160.