User's Manual

Table Of Contents
ABBREVIATED COMPONENT MAINTENANCE MANUAL
1458-A-1101 / 1458-A-1300
Figure 9. (Sheet 1 of 1) Simplified Aeronautical Satellite Communications System
(GRAPHIC 23-15-30-99B-809-A01)
C. Software Specifications (Subtask 23-15-30-870-006-A01)
(1) The A350 SDU and SCM operating software meets RTCA/DO-178B Level D requirements.
D. Hardware Specificati
ons (Subtask 23-15-30-870-007-A01)
(1) The A350 SDU and SCM hardware meets RTCA/DO-254 Level D requirements.
E. Equipment Description (Subtask 23-15-30-870-008-A01)
(1) Mechanical
(a) The A350 SATCOM Avionics System consists of the following LRUs:
•SDU
•SCM
FMPA (optional).
(b) The SDU is divided into several SRUs that are elect
rically connected through the
backplane. Various SRUs are also connected with
the RF cables.
EFFECTIVITY
ALL
23-15-30
Page 40 of 70
5 Oct 2012
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10-Feb-2013