Connecting two Northstar units

SECTION SIX: Interfacing the 958 system

You can connect two 958’s (or a 958 to a 957) and then transfer one of the unit’s waypoints and routes into the other. To connect the 958’s, you must fabricate an interface cable and terminate both its ends with the supplied 6-pin solder-cup style cable connectors. This data-transfer cable is not included with the 958. You must select a cable; use only shielded, twisted pair.

You can also connect a 958 with a Northstar 952, 951, or 941, also using your own data-transfer cable. Each 952, 951, and 941 that you want to transfer waypoints and routes to or from must be using software version 3.12 or higher.

Assembling the cable

To assemble the cable:

1.Cut the cable to the desired length.

2.Slide the following parts onto each end of the cable, in the following order:

• connector backshell

•rubber-strain relief boot that fits inside the backshell

•twist lock (also known as a quarter turn), ensuring that it’s facing in the correct direction.

3.Trim and prepare the wires for soldering to the connector body.

4.Terminate the cable, as described below.

Terminating the cable

To terminate the cable:

1. Terminate and solder the appropriate wires to the appropriate pins:

•For wiring two 958’s or a 958 to a 957, see Figure 17 on page 32 and Table 9 on page 32.

•For wiring a 958 to a 952/951/941, see Figure 18 on page 33 andTabl e10 on page 34.

2. Move to Step #3 on page 34.

958 Installation Manual, Rev. A1

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978/897-6600, 800/628-4487 specifications

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