L3 Technologies AFIRS228S User Manual
AFIRS 228S Iridium Global Communications System Installation Manual
16 July 2014
L-3 Aviation Recorders Proprietary
Page 43
165E5733-00 Rev. 03
6.5 ACARS ATSU
The ACARS ARINC 429 Tx interface provides safety-services data functionality for the Iridium
SATCOM System. It is recommended that if the ACARS ATSU ARINC 429 Rx connection will not be
used, that the wires be capped and stowed near the connectors as shown. Any Rx port from 2 to 16
may be used (ARINC 429 Rx port 4 is used in Figure 6-3).
SATCOM System. It is recommended that if the ACARS ATSU ARINC 429 Rx connection will not be
used, that the wires be capped and stowed near the connectors as shown. Any Rx port from 2 to 16
may be used (ARINC 429 Rx port 4 is used in Figure 6-3).
Figure 6-3 – ACARS ATSU Interface