NorthStar 972 Installation Manual page 20

SECTION THREE: Installing and wiring the GPS antenna
Re-fabricating the 972 connector
If you ever want to shorten the antenna cable, or remove its connector to make more room to run
the cabling, you can remove the connector from the 972 end and then replace it:
1. After shortening or snaking the cable, slide an appropriate sized piece of heat
shrink tubing onto the cable (large enough to fit over the connector backshell).
Then slide the connector backshell onto the cable, as shown below.
2. Prepare each wire for insertion into its solder cup by stripping it and tinning it.
3. Carefully solder each wire to the appropriate cup, as described in Table 7 below.
4. Slide the backshell down the cable and screw it onto the connector body. It should
be hand tight.
5. Using the supplied screws, screw the strain relief onto the backshell.
6. Slide the heat shrink tubing onto the connector. Be sure to leave room for the
locking collar to retract.
7. Heat the shrink tubing until it shrinks around the connector, providing a
watertight seal.
For the pin numbers and functions for the 972 end of the cable, see Table 7 below.
Description
RS232 RX1 (Main receive port)
RS232 RX2 (Aux receive port)
RS232 TX1 (Main transmit port)
Signal gnd
Remote power-on
Ship's power control
Power gnd
(system gnd)
Power in (10-32 VDC)
Page 16
TABLE 7: Wiring connections for 2301 cable
Wire color Pin
Blue 1
Orange 2
Green 3
Brown 4
Black 5
White 6
Red 7
972 Installation Manual, Rev. B