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庞巴迪挑战者605公务机机组操作手册 CL605-通讯 COMMUNICATIONS(2)

时间:2011-10-27 15:35来源:蓝天飞行翻译 作者:公务机
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Microphone and headphone jacks;

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Hand-held microphones;

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Microphone push-to-talk (PTT) keying switches; and

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External ground interphone jacks.

 


 COMMUNICATIONS Description  Vol. 2  06.10.2 
Oct 05/06 


Audio Electronics Control Unit
The audio electronics control unit is responsible for receiving and processing audio and microphone keying input. The unit interfaces with the following:
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Boom, hand-held and oxygen mask microphones;

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Microphone keying switches;

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Ground interphone communication stations;

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Communication and navigation radios;

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Engine indication and crew alerting system (EICAS); and

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Recording systems (voice, flight data).


The unit integrates audio from the crew intercom, communication and navigation radios, and receives command input from the audio control panels. In addition, the unit receives microphone keying and audio, and routes it to the associated radio system. The audio is also provided to the voice recorder system for recording.
EICAS audio is provided in the form of aural tones, chimes and voice messages. This audio is triggered by the DCUs, processed by the audio electronics control unit, and played through the headphones and flight compartment speakers. Crew alerting audio cannot be muted or volume controlled.


 COMMUNICATIONS Description  Vol. 2  06.10.3 
Oct 05/06 


Audio Integrating System Components
Figure 06.10.2

 

 COMMUNICATIONS Description  Vol. 2  06.10.4 
Oct 05/06 


Audio Control Panel
The audio control panels are used to select and control received audio from the communication and navigation systems, as well as to connect microphone keying and audio to the HF/VHF communication radios, the PA system, and the crew and service interphone.
The audio control panel includes the following controls, switches and selectors:
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Audio On/Off and volume controls;

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Microphone selector;

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Radio Transmit/Off/Intercom switch (R/T I/C);

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Voice/Both switch;

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Speaker On/Off/Volume switch;

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Mask/Boom switch; and

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Emergency/Normal switch.


Audio On/Off and Volume Controls
Individual controls are provided for each system where audio is available. Audio is heard when the associated control is pressed, while rotating it adjusts the volume. Each control is provided with backlighting when selected.
Microphone Selector
The position of the microphone selector switch determines which system receives push-to-talk (PTT) commands and crew audio. Audio and sidetone for the selected system is automatically enabled without the requirement for a separate selection of the audio on/off control.
 
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