Cables & - Hama

S144_155_(GB)_SAT2 22.07.2005 13:46 Uhr Seite 144
Sat-Receiver
Sat-Receiver
TV
SAT
TV
R
2 x Twin LNB oder
LNB
LNB
IN
IN (schielende Qua
(H) 18 V (V) 4 V
(H) 18 V (V) 14 V Anlage)
(0 KHz)
(22 KHz)
MS4/4
OUT 1 Multischalter OUT 2
(Receiver powered)
950 – 2300 MHz
Entkopplung/decoupling: 40dB ± 3 dB
Dämpfung/attention: ≤ 6 dB
OUT 3
OUT 4
44159
SAT
R
Sat-Receiver
Sat-Receiver
TV
SAT
R
TV
SAT
R
TV
SAT
TV
R
SAT
R
TV
SAT
R
TV
SAT
R
Antennas/SAT
Multi Switches
If several satellite receivers are to be connected to an LNB,
a so-called multi switch, also sometimes named switch matrix, is
needed. For the distribution of the single levels provided (horizontal
and vertical) a multi switch is placed between the separate
receivers and the LBN output ports. This switch provides all incoming
levels to each receiver connected. Via built-in switches the
receiver is able to control the
switch and accordingly to receive
the desired level. For simultaneous
reception of digital
programs which are broadcasted
in another frequency
range. Multi switches have an
additional trigger criterion,
normally a 22 kHz tone or DiSEqC
which the receiver superimposes
to its operating voltage.
Multi Switch
Diagram of a 3/4
multi switch
Connection
for
terrestrial
antenna
Quattro-LNB:
E.g.: Analogue and digital, but only for one satellite only, e.g. Astra
4/4 Multi Switch
Supply f. terrestrial
antenna
Receiver 1 Receiver 3
Receiver 2 Receiver 4
5/4 Multi Switch
SAT-Receiver
SAT-Receiver
Terrestrial
antenna
MULTISCHALTER
Terrestrial
antenna
Hama
Multi Switch
Item No.
056670
SAT-Receiver
SAT-Receiver
9/4 Multi Switch
Quattro-LNB
E.g.: Astra and Eutelsat (analogue/digital)
i
Hama
Multi Switch
Item No.
44159
1 x Quattro-LNB
Terrestrial
SAT-Receiver
SAT-Receiver
Or
decoder
SAT input ports
SAT-Receiver
SAT-Receiver
The terrestrial input port at the multi switch also allows
feeding in signals from monitoring cameras and decoders!
When connecting decoders copyright laws have to be
obeyed!
144 Hama September 2005
BC = Blistercard