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SECTION SIX: Interfacing the 957 system
Page 50 957 INSTALLATION MANUAL, Revision C1
Connecting two
Northstar units
You can connect two 957’s and then transfer one of the unit’s
waypoints and routes into the other. To connect the 957’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 957. You must
select a cable; use only shielded, twisted pair.
You can also connect a 957 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 appro-
priate pins:
•
For wiring two 957’s, see Figure 17 on page 51 and
Table 8 on page 51.
•
For wiring a 957 to a 952/951/941, see Figure 18 on
page 52 and Table 9 on page 53.
2. Move to Step #3 on page 53.