SHAPING THE FUTURE OF SATELLITE COMMUNICATIONS
The modulated (L-band) signal is forwarded to a multiplexer, in this multiplexer the
following options can be added;
• 10MHz reference (we refer to the section Options for ordering information);
• +24 or +48V DC Power (we refer to the section Options for ordering
information).
At the output of the modulator, the signal is available on an L-band interface, MOD
OUT and MON OUT connector.
Test Generator
The modem is equipped with a build in test generator. This generator can be used
to simulate ASI/TS or IP data.
Option IF OUT
Optionally the L-band modulator can be replaced by an IF-band modulator. When
this option is available the IF signal is directly available on the output of the modem
as IF OUT. In this case the multiplexer is not used. For ordering information see
section Option.
This option is not shown in the block diagram.
7.4.2 Demodulator Functionality
The modem has a dual L-band input on the receiving side. The active input is
selected by the user and can provide DC power and frequency band selection
signals compatible with most professional and commercial LNBs.
The L-band signal is demodulated by the L-band Demodulator. This demodulated
signal is deframed and decapsulated. The data is available on the Ethernet
connector A or B depending which one is activated by the user.
Test Generator
The demodulator is equipped with a build in test generator. This generator can be
used to detect/monitor IP data.
Option IF OUT
Optionally, one L-band input can be replaced by an IF input.
This option is not shown in the block diagram.
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