SHAPING THE FUTURE OF SATELLITE COMMUNICATIONS
In-band Return Signalling
In-band return signalling is sending the signalling messages from the modem on
the ACM client site as non-routable encapsulated IP packets to the satellite link.
As you can see in Figure 85 and Figure 86 there is no connection with external
devices to return the ACM signalling.
The modem on the ACM controller site receives these signalling messages and
sends them to the ACM controller. The ACM controller adapts the ModCod if
needed.
Figure 86 - In-band Return Signalling
In-band and out-band signalling are selected independent for
forward signalling messages and return signalling messages.
Info 2
In-band forward signalling works both with modems and
modulators.
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