User`s guide

19
base plate.
4. Connect the other end of the RF cable to ‘LNB’, ‘ANT’ or
‘Satellite In’ on the rear panel of the second IRD.
Full details on configuring your system IRDs will be found in the
relevant Manufacturer’s handbook.
Multiple IRDs
IMPORTANT: Due to satellite polarization, incorrect connection
in systems using multiple IRDs will result in signal degradation.
Make sure you select the correct method of connection for your
area of operation.
In order to connect three or four IRDs to the antenna you will
have to purchase a suitable universal LNB multiswitch and the
necessary additional RF cables.
The multiswitch has to be installed between the antenna unit
and the IRDs as shown in the following diagram.
You should connect to either the vertical or horizontal high and
low pairs depending on whether you want to watch channels in
the high or low bands. Only those channels in the selected band
will be available for viewing.
To connect three or four IRDs:
1. Connect an RF cable to RF1 and another to RF2 on the
antenna base plate.
RF1 RF2
Multiswitch
Lo/VerHi/Ver Lo/HorHi/Hor
OUT 3OUT 2
POWER
24V DC
OUT 1 OUT 4
GROUND
IRD 1
IRD 3
IRD 4
D9280_3
DiSEqC
IRD 2
81304_1.book Page 19 Tuesday, July 31, 2007 2:44 PM