Northern Airborne Technology AMS50 - Manual (Page 50)

AMS50-000 Stereo Audio Panel with Marker Manual SM50 Rev. 4.00
3.2.3.4
Music and ICS Muting
The mute level is adjusted during installation. The tables below show the muting effects in
each mode.
EFFECT Ö Effect on Crew Music Effect on PAX Music
ACTION Ø All Mode Crew Mode PLT ISO All Mode Crew Mode PLT ISO
PIL TX Key Mute Mute No Mute No Mute
COP TX Key Mute Mute No Mute N/A
RX Detect Mute Mute No Mute No Mute
PAX ICS Mute Mute Mute Mute
Pilot ICS Mute Mute No Mute N/A
Co-pilot ICS Mute
N/A
(already
muted)
N/A
(already
muted)
Mute No Mute Mute
N/A= Not Affected by this action.
EFFECT Ö Effect on Crew ICS Effect on PAX ICS
ACTION Ø All Mode Crew Mode PLT ISO All Mode Crew Mode PLT ISO
PIL TX Key *Mute *Mute N/A *Mute No Mute N/A
COP TX Key *Mute *Mute N/A *Mute No Mute N/A
* ICS is not muted during PA Tx to provide artificial sidetone. N/A= Not Affected by this action.
Note: In PLT ISO mode the Crew consists of the Pilot only. The Co-pilot is considered to be a passenger.
3.2.3.5 Radio Audio Muting
The Pilot Radio audio is never muted. To mute the COM and NAV RX audios, they must
be de-selected. These audios are muted to the PAX in both CREW and PLT ISO
modes.
3.2.4 Speaker and Test Buttons
Speaker Button
and Indicator Lamp Test Button
and Indicator
3.2.4.1 SPKR (Speaker Button)
Radio audio can be switched to a cockpit speaker via the SPKR push-button. Turning on
the cockpit speaker will have no effect on headset audio. Only the direct audio and audio
from the Receive selections (not intercom, music, or transmit selection audio) is available
to the speaker. A green LED above the push-button is illuminated to indicate that the
speaker is on. Headset audio always remains on and can not be deselected.
3.2.4.2
TEST (Lamp Test Button)
This button enables the operator to confirm correct operation of all the front panel
indicator LEDs.
The LEDs will illuminate for as long as the button is pressed in.
Note: The audio from the marker beacon receiver is not tested by this button.
Page 3-4 Nov 12, 2003
ENG-FORM: 806-0104.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.