9
To connect power
M1 DC power requirements:
Note - Each handset requires 12W of power (1A@12V)
HINT - To provide sufficient power, consider the total system
requirements in terms of adequate cable gauge and fuse rating
with capacity for future expansion (ie, adding an H1 or H1P
handset to the same circuit).
The 2M (6.5ft) power cable (supplied) is terminated with a 2 pin
socket. This cable may be extended or shortened as necessary.
> Check that the VHF antenna is connected before
connecting to live DC power.
> Connect the positive (+ve red) and negative (-ve
black) leads of the power cable to the vessel.
> Connect a fuse or circuit breaker to the positive cable
of the appropriate rating for the system. (ie 10A for the M1,
2A for each handset)
> Connect the power cable to the M1. Tighten the power
cable lock ring clockwise to ensure a secure connection
and watertight seal.
> Turn the vessel's batteries (and/or switch or circuit breaker)
on to apply power to the M1.
> Confirm the M1 is powered on with a visual check on the
M1 indicator lights.
M1 wiring diagram
Power +ve
FUSE
Negative -ve
HINT - Connect the M1 to a power supply that will remain on even
when the vessel’s batteries may be turned off. (eg, connected to
the 24hr circuit)
This is important for monitoring to ensure the M1 remains on even
when the main DC power of the vessel is switched off.
Wiring color codes
Red
Black
Nominal
0.5A @ 12V
VHF High Power Transmit (Max)
6.0A @ 12V
Red
DC positive (+ve) (12/24 volts).
Black
DC negative (-ve)
Always use a fuse or circuit breaker installed near the battery
end or bus bar end.
Do not connect directly to a battery.
If you must extend the power connections use quality tinned
marine grade wire at least 16 AWG (1.5mm²).
