SECTION TWO: Installing and wiring the 958

 

TABLE 2: In t e r f a c e

c o n n e c t o r f u n c t i o n s

 

 

 

 

Connector name

Connector function(s)

 

Connects to...

 

 

 

 

 

 

 

 

NMEA (NMEA I/O)

NMEA 1 input/output --------------

>

NMEA devices: radar, autopilot, etc.

(18-pin port)

 

 

 

 

NMEA 2 input/output --------------

>

Same as NMEA 1

 

Honk alarm/200 ppnm ------------

>

Remote honk alarm (or speed indicator)

 

 

 

 

GPS (Antenna)

GPS/WAAS input/output ---------

>

2201 or 2301 GPS antenna

(7-pin RS232 port)

 

 

- or -

 

Beacon input/output --------------

>

Northstar 2701 beacon receiver (optional)

 

 

 

 

AUX (Auxiliary)

RS-422/NMEA input/output -----

>

Northstar 490 echo sounder (optional)

(6-pin auxiliary NMEA

 

 

 

port)

 

 

- or -

 

 

 

A second 958 (or to a Northstar 957/952/

 

 

 

951/941) to transfer waypoints and routes

 

 

 

 

PWR (Power)

Power

 

10 to 36 VDC, 50 watts

 

 

 

 

VGA (15-pin port)

Video output

 

Remote display

 

 

 

 

VIDEO (coaxial)

Video input

 

Any NTSC-compatible device

 

 

 

 

Electrical power requirements

Power source

The 958 is a negative-ground system that’s reverse-polarity protected. Power requirement is 10 VDC minimum to 36 VDC maximum with at least 16-gauge connecting wire.

CAUTION!

As a good safety practice, Northstar strongly recommends that you connect the 958 to a circuit breaker or 20-amp fuse at the power source (battery).

Connecting the 958 to ship’s power

The 958 ships with a 10-foot power cable that you can lengthen to a maximum of 25 feet:

for a cable length up to 15 feet, the power connections must use 16-gauge connecting wire or heavier

for a cable length from 15 to 25 feet, use 14-gauge connecting wire or heavier

Page 8

958 Installation Manual, Rev. A1

Page 12
Image 12
NorthStar Navigation 978/897-6600, 800/628-4487 Electrical power requirements, Connecting the 958 to ship’s power

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