L3 Technologies AFIRS228S User Manual
AFIRS 228S Iridium Global Communications System Installation Manual
16 July 2014
L-3 Aviation Recorders Proprietary
Page 18
165E5733-00 Rev. 03
3.1.2 Environmental Specifications –Iridium SATCOM System
Refer to
Supplemental Documents
for environmental testing conditions, categories and
descriptions of the SDU tests conducted.
Note:
DO-160G categories for the Iridium SATCOM System are as specified by the design.
DO-160G categories for the Iridium SATCOM System are as specified by the design.
3.2 SDU Configuration Module (SCM)
The SCM is housed in a small enclosure designed to be mounted within 24” of the SDU rear
connector. Typically, the SCM will be mounted on or near the ARINC 600 mounting tray used for the
SDU. See Figure 3-6 for an outline of this component.
connector. Typically, the SCM will be mounted on or near the ARINC 600 mounting tray used for the
SDU. See Figure 3-6 for an outline of this component.
Figure 3-3 –Iridium SATCOM System SDU Configuration Module (SCM)