787 Flight Crew Operations Manual
DO NOT USE FOR FLIGHT
Communications Chapter 5
System Description Section 20
Copyright © The Boeing Company. See title page for details.
D615Z003-TBC 5.20.1
5.20 Communications-System Description
Communications20 System DescriptionSystem Description
Introduction
The communication systems include:
• cockpit voice recorder system
• radio communication system
• SELCAL system
• SATCOM system
• communication crew alerting system
• interphone communication system (Refer to Interphone Communication
System in Chapter 5, Section 30, for additional information.)
• data communication system (Refer to MFD Communications Functions
in
Chapter 5, Section 40, for additional information.)
The communication systems are controlled using the:
• audio control panels
• tuning and control panels (TCP) (Refer to Cabin Interphone System
in
Chapter 5, Section 30, for additional information.)
• control display unit (CDU) communications pages (Refer to Company
Datalink in Chapter 11, Section 34, for additional information.)
• multifunction display (MFD) communications pages (Refer to MFD
Communications Functions in Chapter 5, Section 40, for additional
information.)
Audio Control Panels
The audio control panels are used to manage the radio and interphone
communication systems. Navigation receiver audio can also be monitored. The
captain, first officer, and first observer audio control panels are installed on the aft
aisle stand.
Microphones are keyed by pushing the desired audio control panel transmitter
select switch and using the MIC (microphone) position of a control wheel or audio
control panel microphone/interphone switch, a glareshield MIC switch, or a hand
microphone push-to-talk switch. Systems are monitored using headphones or
speakers. An oxygen mask microphone is enabled and the boom microphone is
disabled when the oxygen mask stowage doors are open. The oxygen mask
microphone is disabled and the boom microphone is enabled when the left oxygen
mask stowage box door is closed and the RESET/TEST lever is pushed.
June 16, 2008
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