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HDTV 1000 SPTS
2.4 d
esCriPtion
The cassette is a
DVB-S2 / SPTS
converter which combines modulated serv-
ices (programmes) in accordance with the DVB-S-/DVB-S2 standard and data
streams supplied via the ASI interface into one data stream in the TPS module.
This is emitted via the LAN interface and can contain up to 16 services. For
operating the cassette in a LAN network it can be assigned its own IP ad-
dress. The cassette is equipped with two tuners. The accompanying channel
strips consist of the digital SAT tuners and the digital signal processing levels.
The resulting data streams from the "
Tuner A
"/"
Tuner B
" channel strips and
from the data streams supplied via the ASI socket (ASI – Asynchronous Serial
Interface according to DIN EN 50083-9) can take up to 16 services and are
each assigned an IP address. The signal supplied into the ASI input is provided
again via the ASI output.
Principle signal path:
TPS
"Tuner
A
"
"Tuner
B
"
CA-Modul
CA module
ASI input
ASI output
IP address: Port:
Service 1 212.40.50.90 : 1234
Service 2 212.40.50.91 : 1234
Service 3 212.40.50.92 : 1234
Service 4 212.40.50.93 : 1234
Service 5 212.40.50.94 : 1234
Service 6 212.40.50.95 : 1234
Service 7 212.40.50.96 : 1234
Service 8 212.40.50.97 : 1234
Service 9 212.40.50.98 : 1234
Service 16 212.40.50.105 : 1234
In the head-end station display, the channel strips of the cassette are indicated
with "
Bx …A
" ("
Tuner A
") or "
Bx …B
" ("
Tuner B
"). The channel strip "
Tuner
A
" can descramble scrambled channels via a corresponding CA module. The
cassette is controlled with the head-end station control unit.
Two LEDs provide an indication of the signal quality with their colour. The qual-
ity of the received transport stream can also be shown in the display ("
C/N
"
menu). In an additional menu, the transmission of DVB service information (EIT,
TDT and SDT) or teletext (TXT) can be individually activated or deactivated.
EIT (Event Information Table):
For each service, event information is transmitted (such as starting time, dura
-
tion, scrambling etc.)
TDT (Time Date Table):
The transmitted table contains the current time and date.
