Raymarine 45 STV User Manual page 21

Installation
European systems
In order to connect three or four IRDs to the antenna, you will need to purchase a
suitable universal LNB multiswitch. 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 whether you want to watch channels that are vertically or horizontally
polarized. Only those channels in the selected band will be available for viewing.
Antenna
POWER/DATA
baseplate
IRD 1
To connect three or four IRDs:
1. Connect an RF cable to RF1 and another to RF2 on the antenna base plate.
2. Connect the RF1 cable to Lo/Ver Lo/Hor on the multiswitch depending
whether the desired programming is in the vertical or horizintal low band.
3. Connect the RF2 cable to Hi/Ver or Hi/Hor on the multiswitch depending
whether the desired programming is in the vertical or horizintal low band.
4. For each output required, connect an RF cable from an OUT connector of the
signal splitter to the LNB or ANT connector of the individual IRD units.
5. Terminate any unused connections with a suitable 75 Ohm DC terminator
block.
RF1
RF2
Hi/Hor Hi/Ver Lo/Hor Lo/Ver
DiSEqC
POWER
24V DC
OUT 1 OUT 2
OUT 3 OUT 4
IRD 2
19
Multiswitch
IRD 3 IRD 4