Airbus Iridium SATCOM System
165E5733-00
L-3 Aviation Recorders Proprietary
Issue, Rev. 02
21 January 2014
Page
5
3.5.7.1
Configurable Outputs ....................................................................................... 31
3.5.8
Two-Wire Phone .............................................................................................. 31
3.5.9
Microphone Input ............................................................................................. 31
3.5.10
Iridium / GPS Antenna ..................................................................................... 32
3.6
SDU Maintenance Connector (J2) ................................................................................ 32
3.7
SDU Configuration Module (SCM) ............................................................................... 32
3.8
ARINC 429 Receiver Protocols .................................................................................... 32
3.9
ARINC 429 Receiver Activity Status ............................................................................. 34
3.10
ARINC 429 Transmitter Protocols ................................................................................ 34
3.10.1
From SDU to ATSU / FWC .............................................................................. 34
3.10.2
From SDU to MCDU ........................................................................................ 35
3.10.3
From SDU to Airbus CFDS .............................................................................. 35
4.
Installation Considerations .................................................................................................... 36
4.1
Satellite Data Unit (SDU) .............................................................................................. 36
4.2
SDU Configuration Module (SCM) ............................................................................... 37
4.3
Iridium Antenna System ............................................................................................... 37
4.3.1
Antenna ........................................................................................................... 37
4.3.2
Antenna Mounting ............................................................................................ 39
4.3.3
Coaxial Cable .................................................................................................. 39
5.
SATCOM Installation Materials ............................................................................................. 41
5.1
Required Materials ....................................................................................................... 41
6.
System Interface Wiring ........................................................................................................ 42
6.1
General ......................................................................................................................... 42
6.2
Primary Power, Antenna, and SCM .............................................................................. 42
6.3
ARINC 429 Interfaces ................................................................................................... 42
6.3.1
Receiver Protocols ........................................................................................... 43
6.3.2
Transmitter Protocols ....................................................................................... 43
6.4
MCDU ........................................................................................................................... 44
6.5
ACARS ATSU ............................................................................................................... 45
6.6
CFDIU Interface ............................................................................................................ 46
6.7
Date, Time and Position ............................................................................................... 46
6.8
RS-232/422 Databus .................................................................................................... 46
6.9
Ethernet ........................................................................................................................ 47
6.10
Discrete Inputs .............................................................................................................. 48
6.10.1
Landing Gear Control Interface Unit (LGCIU) Input ......................................... 48
6.10.2
Function Assignment ....................................................................................... 49
