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 40
165E5733-00 Rev. 03
6. SYSTEM INTERFACE WIRING
6.1 General
All wire types and installation practices must comply with the requirements for the aircraft. Unless
otherwise noted, minimum wire size is 22 AWG for standard copper wire or 24 AWG for high-strength
copper alloy wire.
otherwise noted, minimum wire size is 22 AWG for standard copper wire or 24 AWG for high-strength
copper alloy wire.
Terminate all shields at ground block or ground stud on SDU tray. Keep shield drains and unshielded
conductor lengths as short as practicable (<3”).
conductor lengths as short as practicable (<3”).
6.2 Primary Power, Antenna, and SCM
The primary power, antenna, and SCM connections in Figure 6-1 are required for all Iridium SATCOM
System installations. The system will start, and continue to operate, whenever power (20.5 – 32.2 VDC)
is available at the Primary Power Input pin (J1C-2).
System installations. The system will start, and continue to operate, whenever power (20.5 – 32.2 VDC)
is available at the Primary Power Input pin (J1C-2).
Figure 6-1 – Primary Power, Antenna, and SCM Interface