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OPERATOR’S
MANUAL
CMA-9000 FLIGHT MANAGEMENT SYSTEM
Page 16-1
November 19, 2009
SECTION 16
MCDU FUNCTIONS
MCDU SUBSYSTEM CONTROL (if configured)
The FMS has the built in capability to interface with External Sub-Systems (ESS) through ARINC 739 protocol
and act as a MCDU for these external sub-systems. After a FMS cold start, automatic logon into an ESS is
possible if there is at least one ESS configured in the auto logon priority list. There are 11 FMS hardkeys can
be assigned as key logon functions in the configuration. When a hardkey is pressed, the FMS will logon into the
assigned ESS.
The MCDU MENU page displays all configured external sub-systems and the internal FMS.
Display MCDU MENU X/X page by pressing [MENU].
The sub-systems displayed have a dedicated key. The internal FMS is displayed at LSK 1L. The name of
ESS1 is displayed at LSK 2L, the name of ESS2 is displayed at LSK 3L and so on.
NOTE: That up to 7 external sub-system can be installed, meaning 8 equipments can be displayed on the
MCDU MENU page (including the internal FMS that is always part of the sub-system list), from LSK 1L
to LSK 5L on MCDU MENU 1/2, and from LSK
1L to LSK 3L on MCDU MENU 2/2.
1 R
2 R
3 R
4 R
5 R
6 R
MCDU MENU 1/1
<
FMS1 <REQUESTING>
<
FMS2 <ACTIVE>
<
ACARS
<TIMED-OUT>
COMM
>
1 L
2 L
3 L
4 L
5 L
6 L
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and must not be retained for reference