User's Manual

SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
ARINC 781-200 SDU and SCM
23-15-30 2-1
DATE TBD
SYSTEM OPERATION
The SDU is an integral component in an AES. Together with the SCM, DLNA, Antenna, and HGA
subsystem, it provides AMSS by facilitating airborne satellite communication services over the
Inmarsat network. These services comprise Classic Aero-H+, Swift 64, and SwiftBroadband (SBB).
The SCM is a dedicated peripheral of the SDU and stores aircraft specific installation configuration
critical to the operation of the AES.
This section provides basic information on using the A781-200 system.
1. Registering and Activating Terminals
Registering and activating the A781-200 system has the following steps:
• Obtaining ICAO Addresses
• Choosing Service Providers
• Registering Terminals
A. Obtaining ICAO Addresses
Obtain your ICAO address from your local aeronautical authority. Your service provider
will require this address when you register.
B. Choosing Service Providers
Contact Inmarsat for an up-to-date list of Inmarsat Service Providers using the following
contact information:
Inmarsat
99 City Road, London
EC1Y 1AX
Tel: [phone]
Fax: [phone]
Customer Care
Tel: [phone] 
Fax: [phone]
Email: [e-mail]
Web address: www.inmarsat.com
C. Registering Terminals
Contact your Inmarsat service provider and ask for a registration for service activation of
Aircraft Earth Station form. With this form, you can register for SBB and Aero
H+ services.
The services available depend on your service provider.