Aspen Avionics Evolution EFD 1000 C3 Pro PFD - Analog Converter Unit (ACU); Configuration Module (CM)

CHAPTER 1 WELCOME
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091-00019-001 REV B
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091-00019-001 REV BEFD1000 C3 Pro PFD Pilot’s Guide
1.1.2. Conguration Module (CM)
The Conguration Module (Figure 1-7) contains an EEPROM device that retains system
conguration and calibration data and provides two primary functions:
• Retains aircraft-specic conguration information, calibration data, and user
settings, allowing the PFD to be swapped for service purposes without re-entering
or re-calibrating the installation
• Contains a license key that congures the PFD software features
The CM is typically attached to the wire bundle coming out of the D-sub connector on
the display unit.
1.1.3. Analog Converter Unit (ACU)
The Analog Converter Unit (ACU) (Figure 1-8), included with the PFD system, enables
the all-digital, EFD1000 System to interface with analog avionics when required. The
ACU converts multiple analog interfaces to the digital ARINC 429 buses supported by
the PFD. Control parameters, such as desired heading, are also sent from the PFD to the
ACU for conversion to analog format for autopilot support. The ACU is required when
any of the following capabilities are required in a PFD installation:
• 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
Conguration Module (CM)
Figure 1-8
Analog Converter Unit (ACU)