Aspen Avionics Evolution EFD1000 VFR PFD - Configuration Module (CM); Analog Converter Unit (ACU)

CHAPTER 1 WELCOME
EFD1000 VFR PFD Pilot’s Guide
Page 1-6
091-00028-001 ( ) EFD1000 VFR PFD Pilot’s Guide
Page 1-7
091-00028-001 ( )
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)
1
The Analog Converter Unit (ACU) (Figure 1-8), is highly recommended if you are
considering upgrading your VFR PFD to a Pro PFD. If installed with the VFR it eliminates
the need to open the aircraft during the VFR to Pro upgrade. It 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 Pro 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 Pro 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)
1. VFR PFD option