Johansson 9744MC, Руководство пользователя

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Digital SCR Multiswitch (Ref: 9744MC, 9746MC, 9748MC)
7
2. I
NSTALLATION OF THE HARDWARE
The optional power supply (ref
2460) can feed multiple
multiswitches.
Ref.
Amount of products
per power supply
9744MC 4
9746MC 2
9748MC 1
The four trunks are DC isolated
from each other, so 13 V and 18 V
can be supplied separately from
trunk out to trunk in.
All 4 LNB trunks should always be
cascaded or terminated with a DC-
blocked 75-Ohm terminator. All
unused SCR/Legacy outputs should
be terminated with a 75-Ohm
terminator for proper terrestrial
signals.
In this example 1 multiswitch is
installed per floor. Only 2 power
supplies are used to power the 4
multiswitches.