EFD1000 Installation Manual
DOCUMENT # A-01-126-00 PAGE 23-225 Revision H
© Copyright 2009 Aspen Avionics Inc.
The RSM is mounted externally in a magnetically quiet environment to provide acceptable
reception for the integral GPS antenna and to minimize magnetic disturbances that would
impact accurate magnetometer operation.
3.3 Configuration Module
The Configuration Module contains an EEPROM device which retains system configuration and
calibration data. The Configuration Module connects to the PFD through a short fabricated
harness and is fastened to the main wiring bundle of the PFD.
The Configuration Module provides two primary functions:
• Retains aircraft specific configuration, 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 configures the PFD software to either “Pilot”, “Pro”, or “Pro
Digital” feature set.
3.4 Analog Converter Unit (ACU)
For the Pro model only, the optional Analog Converter Unit (ACU) provides compatibility with
older, analog-based avionics when required. The ACU converts and concentrates multiple
analog interfaces to 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 feature set of the “Pilot” system does not support interface to navigation equipment, and
therefore does not support the ACU interface. The ACU is required when any of the following
capabilities are required in a “Pro” installation:
• Interface to supported autopilots
• Interface to supported non-ARINC 429 VLOC navigation radios
• Interface to supported non-ARINC 429 GPS navigators
• Interface to supported radar altimeter decision height
If digital radios (i.e., Garmin 4XX/5XX series radios) are equipped in the aircraft and no other
aircraft interfaces (such as an advanced autopilot) are to be used, then the “Pro Digital”
configuration module can be used and the ACU is not required.
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