ARTEX PRODUCTS / ACR ELECTRONICS, INC
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
ELT 345 (P/N: A3-06-2880)
Page 48 of 58
25-62-35
SUBTASK 25-62-35-450-002
C.
ELT D-Sub Plug Installation
1)
See Figure 20 Harness Plug Assembly.
2)
Select a rubber grommet, supplied as part of the D-Sub housing kit (150-1127), that fits snugly around the
harness wiring.
3)
Feed the wiring harness, ground wire, and buzzer power wire through the grommet, such that the raised collar
end of the grommet is positioned toward the D-sub receptacle end of the harness.
4)
Slide the grommet away from the cable and other conductor ends, such that it does not interfere with soldering
the conductors to the plug (150-1130).
5)
Buzzer ground conductor may be soldered to the cable shield or ground pin for composite airframe installations
(see Figure 18 Typical 2-Wire Installation for Shielded Harness on page 46 for composite airframe wiring
diagram).
6)
Solder a short jumper wire (G-switch loop) between pins 5 and 12 of the harness D-sub receptacle
CAUTION:
THE ELT WILL NOT AUTOMATICALLY ACTIVATE IF THE JUMPER G-SWITCH LOOP) IS NOT
PROPERLY INSTALLED IN THE ELT D-SUB RECEPTACLE.
7)
Note the pin locations of the harness D-sub receptacle plug and solder the harness wires in place, referring to
the appropriate wiring diagram.
8)
Fit the plug into one of the housing halves, positioning the grommet such that it fits into the recess on the cable
end of the housing.
9)
Install the bracket washers onto the thumbscrews.
10)
Insert thumbscrews into lower housing half.
11)
Fit the other housing half into place.
12)
Screw housing halves together using the screws and nuts supplied as part of the housing kit.
Figure 20 Harness Plug Assembly