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2.3.5.2 Connecting Three or More IRDs and
TVs (North American Systems Only)
To install three or more IRD/TV pairs, an active multiswitch
(Channel Master model 6214IFD or equivalent) must be placed
between the antenna unit and the IRDs. Figure 2-18 illustrates
typical wiring arrangements for multiple IRDs. If more than four
IRDs are required, contact KVH for additional wiring
instructions. Mount the multiswitch unit in accordance with the
manufacturer’s instruction sheet.
1. Connect the RF cable tagged “RF1” to the
multiswitch input labeled “LNB RHCP +13V.”
2. Connect a second RF cable to the multiswitch
input labeled “LNB LHCP +18V.”
3. Connect the multiswitch outputs to individual IRD
inputs. Use RG-6 cable terminated with
F-type connectors for all RF connections.
4. Terminate all unused output connectors with
75 ohm DC blocks (Channel Master #7184, Radio
Shack #15-1259 or equivalent).
2-14
A Guide to TracVision L3/S3
Multiswitch
DC In RHCP
+13V
VHF/UHF LHCP
+18V
Out 1 Out 2 Out 3 Out 4
DC Power
IRD #1 IRD #2 IRD #4IRD #3
TracVision RF Connectors
RF1
RF2
Figure 2-18
Installing Three or Four IRDs
Using an Active Multiswitch
TracVision L3/S3 has the capability
to switch from one satellite to
another when you choose TV
channels that are carried by your
two selected satellites. However,
the use of an active multiswitch
may interfere with the 22 KHz tone
sent by DIRECTV DSS Plus
™
IRDs
to the antenna. As a result, the
antenna may not receive the signal
to change satellites when you
change channels using your
DIRECTV DSS Plus remote.
In this case, you will need to use
the optional TV/SAT Switch* or a
PC as described in Section 3.2,
“Changing Channels and Switching
Between Satellites.”
* To order a TV/SAT Switch (KVH Part
Number 01-0245), please call
+1 401 847-3327.