General description
2-2 Chapter 2: Introduction 98-145168-A
The AVIATOR 200S System consists of:
• SDU-5045 Compact Satellite Data Unit (CSDU)
• SCM-5055 Compact SDU Configuration Module (SCM)
• LGA-5005 HLD/Enhanced Low Gain Antenna (HELGA)
The CSDU is the master of the AVIATOR 200S System and controls the associated units in
the system. The SCM and the antenna are powered by the CSDU.
The AVIATOR 200S System has the following features:
• Complete aircraft network segregation with priority for the Aircraft Control Domain
(ACD) over the Aircraft Information Services Domain (AISD).
• ARINC 781-7 compliant network security
• Approved FANS 1/A services, including CPDLC, ADS-C and ACARS.
• Enhanced ACARS (with IPSEC VPN) and Secure Cockpit Voice.
• Media for aircraft monitoring systems and continuous positioning reporting.
• Background IP data for AISD (e.g. EFB) applications.
• ARINC 781-7 Compact 2 MCU package with active HLD/Enhanced Low Gain Antenna.
• Two cockpit voice over 4-wire connections, with three MCDU ARINC 429 interfaces for
SATCOM and voice management
• Two CMU/AFIS ARINC 429 interfaces for ACARS.
Figure 2-1: AVIATOR 200S System, single channel (Class 4)
HELGA (LGA-5005)
Coax Cable:
RF, DC power, Control, BITE
2 MCU
SCM (SCM-5055)
HLD and Enhanced Low Gain Antenna
SDU Configuration Module
CSDU (SDU-5045)
Compact
Satellite Data Unit
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General