L3 Technologies AFIRS228S0 User Manual
AVIATION RECORDERS
COMPONENT MAINTENANCE MANUAL
AIRBUS IRIDIUM SATCOM SYSTEM
B. SDU CONFIGURATION MODULE (SCM)
Refer to Figure 4. The SCM is a small module that is mounted near the SDU. It uses
an EEPROM to store a copy of the “aircraft personality” information. The SCM also
contains the Iridium SIM card, which provides access to the Iridium satellite network
for the voice communications functionality.
an EEPROM to store a copy of the “aircraft personality” information. The SCM also
contains the Iridium SIM card, which provides access to the Iridium satellite network
for the voice communications functionality.
Figure 4. SDU Configuration Module (SCM) Assembly Drawing
Part Number: 418E5733-00
Description and Operation
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