Promax HD Ranger +, Руководство пользователя

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December 2014
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A3.5 In the collective facilities
The most frequent satellite signal distribution system in the small collective
facilities is the “BIS-switched”. This technology implies to use the “Quattro” type
LNBs (not to confuse with the “QUAD” type) and also supports specific
multiswitches for this type of facilities.
A Quattro-LNBis a LNB with 4 outputs that provides in a separated way the four
frequency bands (vertical low, vertical high, horizontal low and horizontal high).
These four signal scan then be distributed in the building through multiswitches.
Figure A3. 4.
The signal is distributed in the network by means of multi-outlet
multiswitches . The number of inputs and outputs is variable. The number of
inputs depends on the number of satellites (LNB).Usually a multiswitch includes
also an input for the TV terrestrial signal. The number of outputs depends on the
number of terminals (receivers) that can be connected to the multiswitch. In
addition,
multiswitch in cascade incorporate pass connectors to be able to
distribute the signal and thus to connect several multiswitch in cascade mode
and therefore to give access to more users.
Figure A3. 5.