4 installation: power/data cable – NorthStar Navigation Multi-Function Unit M84 User Manual

Page 95

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Northstar M121/M84 Installation and Operation Manual

94

Black

Auto

power

When wired for Auto Power On the unit will turn on when the ignition switch is on, if you would like
the unit to turn off when the ignition switch is off then set the unit for Auto Power Off (see section
2-2 and 17-1)

2 Wire any external alarm beepers or lights. The alarm output switches to ground to sound the

alarm. If the current is more than 200 mA, fit a relay.

3 Connect the power/data cable to the black display unit connector; turn the collar to lock the

connector.

Power/data cable

Yellow

Red

Black

Ignition

Ignition switch

Main switch

12/24 V DC

Fuses 2A

Power/data cable

Red

Yellow

Black

20-4 Installation: Power/data cable

Main switch

12/24 V DC

Fuse 2A

The power/data cable has a black locking collar and flying leads.

1 Wire the Instrument for auto power to have the Instrument turn on with the boat’s ignition switch

or to record engine hours or if the Instrument must add up the total fuel used (for example if
Northstar petrol/gasoline fuel sensors are installed or if SmartCraft is installed without fuel tank
level sensors). Otherwise wire for basic power (for more information, see section 2-2).

Basic

power

Black

Black

External beepers or

lights

Power/data cable

Red

Green

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