Sigtronics SPCC-2, Руководство по эксплуатации

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6
SPCC INSTALLATION
The SPCC requires six simple connections to put it into operation.
The power cord, the aircraft radio, the FM radio, the auxiliary audio
input source (optional), the push-to-talk switches, and the headsets
must all be connected for the system to work as designed. But do not
fear, Sigtronics has simplified the connection process, so it will
just take a few moments. Refer to the SPCC connection drawing Figure
1 on page 3.
1. Power Cord: The four foot power cord is designed to plug
directly into a standard cigarette lighter socket. The SPCC
will run on 11-34 VDC, so it automatically adjusts to 12 or
24 volt aircraft. The SPCC can also be powered by an
auxiliary battery pack, if desired.
2. Aircraft Radio: The mic and headphone cords on the unit are
designed to plug into the mic and headphone jacks in the
panel of the aircraft. If the aircraft does not have either
one of these jacks, they can be installed by any qualified
avionics technician. If you plan to use the SPCC in a
helicopter, please contact Sigtronics for advise on adapting
the general aviation plugs to the helicopter jacks.
3. FM Radio: An interface cable is needed to connect the SPCC
to the FM radio. On one end of the cable will be a five pin
connector to plug into the jack on the top of the SPCC. On
the other end will be whatever is required by your FM radio.
Since virtually any radio can be used and there is little
standardization among manufacturers, no one cable will work
for all radio transceivers. Therefore, the FM radio
interface cable will have to be fabricated for your
particular radio. This cable can be supplied to you by
Sigtronics or made up by your radio technician. If you
decide to purchase a completed interface cable, Sigtronics
has an extensive cable making facility and can provide you
with one at minimum cost. We will need to know what length
cable you require and the manufacturer and model number of
the radio you wish to use.
If you would rather have your radio technician make the
cable, the FM radio interface cable connector pin
assignments and some typical cable wiring examples are
located on pages 13 and 14. A five pin connector plug is
supplied with each SPCC unit for this purpose. You will also
need the radio mating connector and connection schematic or
hook-up drawing for your particular FM radio. These can
usually be obtained from the radio manufacturer.
4. Auxiliary Radio: If you are using an auxiliary radio, then a
simple interface cable is also needed to connect the SPCC to
the auxiliary audio input source. The SPCC accepts a
standard 1/8" monaural mini plug.