L3 Technologies AFIRS228S ユーザーズマニュアル
AFIRS 228S Iridium Global Communications System Installation Manual
16 July 2014
L-3 Aviation Recorders Proprietary
Page 41
165E5733-00 Rev. 03
6.3 ARINC 429 Interfaces
The Iridium SATCOM System has 16 ARINC 429 receive ports and 6 ARINC 429 transmit ports. Each
port is software-configurable for high or low speed, and the receive ports are also individually
software-configurable for odd, even, or no parity checking. The transmit ports always transmit odd
parity.
port is software-configurable for high or low speed, and the receive ports are also individually
software-configurable for odd, even, or no parity checking. The transmit ports always transmit odd
parity.
6.3.1 Receiver Protocols
Each of the ARINC 429 receivers can be configured in software for the proper protocol of the external
aircraft system to which it is interfaced. Once a protocol (except “None”) is selected for any given
receive port, it is no longer available for assignment to any other port. When an input is not connected
to an active system (e.g. no connection, or wiring provisions only are installed), the port should be
configured as “None” to avoid triggering bus inactivity faults.
aircraft system to which it is interfaced. Once a protocol (except “None”) is selected for any given
receive port, it is no longer available for assignment to any other port. When an input is not connected
to an active system (e.g. no connection, or wiring provisions only are installed), the port should be
configured as “None” to avoid triggering bus inactivity faults.
•
None
•
ACARS 1
•
ACARS 2
•
A739 MCDU 1
•
A739 MCDU 2
•
A739 MCDU 3
See Section 0 for the label specifications for each receiver protocol.
6.3.2 Transmitter Protocols
Each of the ARINC 429 transmitters can be configured in software for the proper protocol of the
external aircraft system to which it is interfaced. Once a protocol (except “None”) is selected for any
given port, it is no longer available for assignment to any other port.
external aircraft system to which it is interfaced. Once a protocol (except “None”) is selected for any
given port, it is no longer available for assignment to any other port.
•
None
•
ACARS
•
A739 MCDU
See Section 3.10 for the label specifications for each transmitter protocol.