Stereo/Monaural Jack Installation
The stereo/monaural installation is preferable because it allows stereo and monaural headsets to be used at the
same time.
To attach headphone and microphone jacks to the aircraft panel when you are installing the intercom as a
stereo/monaural system:
1. Choose an accessible location in the aircraft panel for each pair of headphone and microphone jacks (one
pair each for the pilot and co-pilot and one pair each for up to four passengers).
2. Using the stereo/mono switch plate as a template placed either horizontally or vertically, carefully mark each
stereo/mono switch and headphone jack location.
3. Drill one 1/4 inch hole in the aircraft panel for each stereo/mono switch and one 3/8 inch hole for each head
phone jack
(Figure 5 below)
.
4. Drill one 1/2 inch hole in the aircraft panel for each microphone jack shoulder washer, preferably next to the
headphone jack.
5. Connect headphone and microphone jacks with 20-22 gauge wire (preferably 22 gauge), as shown in
(Figure 5 below)
and
(page 4, Figure 6 )
.
6. Pass the stereo/mono switch through the aircraft panel and switch plate, and secure it using the mounting
nuts and washers provided
(Figure 5 below)
.
7. Mount the headphone jack to the aircraft panel and switch plate, and secure it using the metal mounting nut
and washer provided.
8. Repeat steps 3 through 7 at each pre-marked headphone jack location, with the correct side of each switch
plate facing outward.
Figure 5
- Jack Mounting Diagram-Stereo/Mono
3
