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AA12S Series Compact Audio Controller Manual SM69 Rev. 4.00
3.3.2.2 ICS Volume Control
The ICS VOL control, which has a line to mark rotational position, is at minimum volume
when fully ccw. As the knob is rotated cw, the ICS volume for crew and PAX increases.
The ICS is muted during transmit operations.
3.3.3 PILOT ISO / NORM Modes
Pilot Isolate Switch
The PILOT ISO/NORM control is a red, two-position toggle switch that allows selection
of either NORM (Normal) or PILOT ISO (Pilot Isolate).
In NORM mode (default) everyone on the system can talk to each other, listen to music,
and hear all selected radio audio.
The PILOT ISO mode separates the pilot from the intercom network, allowing
confidential radio communications without interference from the copilot or passenger
intercom or music, while maintaining complete control of all the radio functions of the
audio panel. The copilot and passengers retain normal intercom and music functions.
Note: In PILOT ISO mode, the receive/sidetone levels may require adjustment at the
audio source.
3.3.4 Entertainment Audio
The AA12S accepts stereo music input from portable entertainment units, CD players or
other integrated on-board systems. The stereo output delivers music to stereo, or
standard monaural, general aviation headsets (installation dependent).
Music muting occurs during any radio or intercom activity.
Page 3-4 Oct 13, 2005
ENG-FORM: 806-0106.DOT Amendment #1 Oct 14, 2005
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.