to boom mic*. New Power. Cable. Existing Audio/. Mic cable. 9V+. (—). (—) audio
+. Two. Grounds. Merge. Crossover Cable. Left. Volume Control to boom mic*.
Wiring Diagram Power (9v) Ground (-) (common ground, see below where two grounds merge) Audio (+) Audio (+) after volume control This diagram represents the correct wiring method to make a wiring harness and install the anr modules. Five different configurations are shown below. Determine which figure best describes your headset, and install the modules according to that figure. Do not assume the colors shown on this schematic represent the colors of the wiring in your headset prior to to modification. Most headsets will have different colored wiring. You must confirm the identity (color) of your audio (+) and ground (-) wires prior to making the wiring harness. The best way to confirm the identity of audio (+) and ground (-) is with a continuity tester (ohm meter). Your headset may be stereo or mono. Compare your audio plug to the audio plugs shown below to determine if your headset is mono or stereo. Ground (-) Audio + (R) Ground (-) Audio + (L)
Audio +
Audio Plug (mono)
Audio Plug (stereo)
*Leads to the boom mic are not affected and should not be cut or spliced in any manner. Do not use the boom mic ground lead as a ground for the anr modules.
Cable
audio + (—
)
+
9V
(—
)
to boom mic*
over
Mono Headset with single volume control in left side.
Left Volume Control
Cross
Figure A
Two Grounds Merge
New Power Cable
Existing Audio/ Mic cable
to boom mic*
+ audio ) (—
)
+
9V
(—
Mono Headset with two volume controls.
Cross over
Figure B
Cable
Left Volume Control
Two Grounds Merge
New Power Cable
Existing Audio/ Mic cable
to boom mic* ) (—
+ 9V
(—
)
Mono Headset with volume control in right side. This layout requires a 4 conductor
