L3 Technologies AFIRS228S User Manual
AFIRS 228S Iridium Global Communications System Installation Manual
16 July 2014
L-3 Aviation Recorders Proprietary
Page 48
165E5733-00 Rev. 03
6.11.1.2 Latched ACP Configuration
If the Audio Integrating System provides a latched Mic On output, the following interface can be used.
When an incoming call is ringing and the SATCOM switch on the Audio Control Panel is pressed, the
call will be answered and microphone audio will always be live. The SATCOM switch on the Audio
Control Panel is pressed a second time to end the call. Calls cannot be answered and terminated on
the MCDU screen in this configuration.
When an incoming call is ringing and the SATCOM switch on the Audio Control Panel is pressed, the
call will be answered and microphone audio will always be live. The SATCOM switch on the Audio
Control Panel is pressed a second time to end the call. Calls cannot be answered and terminated on
the MCDU screen in this configuration.
The following diagram also shows how the Call Light output can be interfaced to an Audio Integrating
System that provides SATCOM visual and aural call indications. In this case, a Call Light, Chime and
Chime Reset switch are not required.
System that provides SATCOM visual and aural call indications. In this case, a Call Light, Chime and
Chime Reset switch are not required.
Figure 6-7 – Latched ACP Audio Interface