CAHORS
CS 60022 - 46003 Cahors cedex 9 - France
Tél. +33 (0)5 65 35 82 20 Fax + 33 (0)5 65 35 82 52
The MSU range allows cascade or standalone operation.
Definition of standalone mode:
Multiswitch used alone or at the end of the cascade.
This mode loads the outputs of the Multiswitch with 75-ohm terminations
Definition of cascading mode:
Mode allowing the addition of multiswitches in cascadable mode.
The outputs are not loaded
Amplification before injection in the multiswtich / column
Multiswitch (acceptors of high input levels). If LNB output signals or filter output signals are
sufficient, they will need the amplifiers.
Active for all multiple switches: Maximum input level of 95 dBμV
Satellite for all multiswitch: Maximum input level of 100 dBμV
Column feed, remote power supply
The DC case and LNB power supply is via any satellite cascadable output from the switch (main
satellite).
The power supply without receiver does not make it possible to remote power the multiswitch
nor the heads, nor a preamplifier of reception by terrestrial input. It is obligatorily a 12 V
external power supply.
The remote feeding does not go up by the terrestrial trunk.
It goes back only by the satellite trunk
System performance
The system can operate in active or passive mode for the terrestrial.
See last page for details of losses
The trunk losses are to be taken into account when using more than one multi-switch in the
columns.
