Satellite Airborne Telecommunication System - BOMBARDIER Challenger 650 Handbook

COMMUNICATION AND CONTROL

SATELLITE AIRBORNE TELECOMMUNICATION SYSTEM

The Honeywell Aspire-100 system provides voice and data communication to the aircraft cabin and an operating interface
to the satellite communication system. The system consists of a dual-channel Cabin Services Unit (CSU), a Network
Distribution Unit (NDU), and cabin handsets. The CSU coordinates and controls the telephone handsets for all voice calls
and in-cabin intercom functions and may provide an automated attendant. The CSU includes multi-function networking
modules that provide wireless LAN, Ethernet LAN, 2- and 4-wire voice lines, CEPT E1 service, and ISDN service. The
system offers connectivity, integration, and management of all aircraft cabin communication systems and user devices. The
system also interfaces with office equipment to allow data transmission and reception.
The Aspire-100 system can route communication signals from the aircraft cabin over the Iridium satellite network. The
number and orbit spacing of the Iridium satellites is such that the aircraft is always in view of an Iridium vehicle for
coverage, even over polar areas. The Aspire-100 system transceiver provides telecommunication and data communication
interfaces to wireless Ethernet devices through the onboard Wireless Access Point (WAP).
The Aspire-100 system is interfaced to the CMS via Ethernet to allow maintenance reporting and troubleshooting through
the Galley Control Panel. The PCU that serves the same seat as the handset sends a ring tone to the headphones and
pauses any video and audio signals when the handset is active.
Telecommunications equipment shown in Figure 36 includes corded and cordless handsets.
The International Maritime Satellite (INMARSAT) system provides third voice communication channel (CEPT EI).
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