Northern Airborne Technology AMS50 - Manual (Page 49)

SM50 Rev. 4.00 AMS50-000 Stereo Audio Panel with Marker Manual
3.2.3 ICS
Functions
Pilot Isolate Switch
and Indicator
Crew Mode Switch
and Indicator
The AMS50 features three operating modes as outlined below. Intercom (ICS) and
music audio will have different muting features depending on the selected ICS mode
(see section 3.2.3.4). Selection of a specific mode will cause the related LED to
illuminate. To deselect, either press the same button again (the LED will go dark) or
press the alternate selection (the LED for the newly selected mode will illuminate, and
the previous LED will go dark).
3.2.3.1
CREW Mode
When the CREW button is pressed, the green LED above it will illuminate to indicate
that the ICS system is in CREW mode.
The Pilot and Co-pilot are isolated from the passengers but retain normal radio
operations. The crew and passengers each retain full intercom capabilities within their
own groups, but the passengers are prevented from hearing any radio communications
while still retaining normal music muting. The crew’s music level is automatically set to
the mute level selected at installation.
3.2.3.2
PLT ISO Pilot Isolate Mode
When the PLT ISO button is pressed, the green LED above it will illuminate to indicate
that the intercom system is in Pilot Isolate mode.
In this mode, the Pilot is separated from the intercom network, allowing confidential
radio communications without interference from the passenger intercom or music.
While in PLT ISO mode, the Pilot maintains complete control of all the radio functions of
the audio panel. The Co-pilot is connected with the passengers, and is removed from all
radio operations.
3.2.3.3 All
Mode
If neither the CREW nor PLT ISO buttons is pressed, both the indicator LEDs will remain
dark, signifying that the system is in the ALL (default) mode.
This mode permits everyone on the system to talk to each other, listen to music, and hear
all radio communications.
Nov 12, 2003 Page 3-3
ENG-FORM: 806-0104.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.