User Manual

AFIRS 228S Iridium Global Communications System Installation Manual
16 July 2014 L-3 Aviation Recorders Proprietary Page 42
165E5733-00 Rev. 03
6.4 MCDU
If an ARINC 739A MCDU is installed:
• MCDU 1 should be connected to ARINC 429 Tx 1 and ARINC 429 Rx 1
• MCDU 2 and 3 can be connected to any ARINC 429 Rx port from 2-16
(Ports 2 and 3 are used in Figure 6-2)
Figure 6-2 – MCDU Interface