CHAPTER 1
WEL
C
OME &
INTR
ODUC
TION
EFD1000/500 MAX MFD Pilot’s Guide
EFD1000/500 MAX MFD Pilot’s Guide
Page 1-7
091-00006-002 ()
1.1.3 Configuration Module (CM)
The Configuration Module contains an EEPROM device that retains system
configuration and calibration data and provides two primary functions (
Figure 1-7
):
• Retains aircraft-specific configuration information, calibration data, and pilot
settings, allowing the PFD to be swapped for service purposes without re-entering
or re-calibrating the installation.
• Contains a license key that configures the EFD system software features.
The CM is typically attached to the wire bundle coming out of the D-sub connector on
the system unit.
1.1.4 Analog Converter Unit (ACU) - optional
The optional ACU enables the all-digital EFD1000/500 MAX system to interface to
analog avionics when required. The ACU converts multiple analog interfaces to the
digital ARINC 429 buses supported by both the EFD1000/500 MAX displays. Control
parameters, such as desired heading, are also sent from the EFD to the ACU for
conversion to analog format for autopilot support. The ACU is required when any
of the following capabilities are required (
Figure 1-8
):
• Interface to supported autopilots.
• Interface to conventional VHF navigation radios.
• Interface to legacy (non-ARINC 429) GPS navigators.
• Interface to supported radar altimeter decision height annunciations.
If ARINC 429-based digital radios, such as the Garmin 400/500-series GPS/nav/comm
radios, are installed in the aircraft, and no other aircraft interfaces are desired, the ACU
is not required.
Figure 1-7
Configuration Module
Figure 1-8
Analog Converter Unit (ACU) - optional
