NorthStar Navigation EXPLORER 657 Installation What comes with, Optional sensors and instruments

18-1 Installation: What comes with the 657

657 display unit, with a holder for plug-in cards and blanking cap for fuel connector.

Dust cover for display unit

Power cable

Mounting bracket (screws included)

GPS connection cable

Warranty registration card

Northstar 124 GPS antenna

Flush mounting kit

Dual frequency transom sonar transducer (includes cable kit and screws)

Transom Mount Transducer Installation Manual

Full Instruction Manual CD

18-2 Installation: Options and Accessories

•Replacement paddle wheel

•C-MAP™ NT-MAX, NT+ or NT chart cards.

•C-MAP™ user cards (3 V) for storing data. (The older 5 volt cards are not supported)

•Northstar carry bag.

•Northstar NavBus junction boxes simplify wiring, particularly if several instruments are connected. For more information, see the NavBus Installation Manual.

Optional sensors and instruments

External alarms: Lights or sounders in the boat to sound alarms through the boat (see section 18-4).

GPS or DGPS antenna: For GPS navigation (see section 18-5).

Sonar transducer: For depth sounding and fish finding (see section 18-6).

Fuel sensors: For fuel functions. The 657 can use these optional fuel flow sensors, fitted to one or two engines:

•Northstar petrol/gasoline sensors (see section 18-7)

•SmartCraft™ fuel sensors (see section 18-10)

DSC VHF radio: Tracks other boats with GPS receivers and DSC radios and displays barometric pressure (see section 18-8).

SmartCraft™: With one or two SmartCraft™ capable Mercury petrol/gasoline engines, the 657 can display engine data and trim and can control troll speed (see section 18-10).

Other instruments: The 657 can receive data from other instruments and send data to other instruments by NavBus or NMEA (see sections 18-11 and 18-12).

Please consult your Northstar dealer for more information.

Northstar Explorer 657 Installation and Operation Manual 75