EFD1000 E5 Dual Electronic Flight Instrument (EFI) Install Manual
DOCUMENT # 900-00041-001
PAGE 32-226
REVISION D
© Copyright 2019 Aspen Avionics Inc.
3.3
Remote Sensor Module (RSM)
The RSM is required and connects directly to the EFD display. It physically resembles a
traditional GPS antenna and follows the industry standard mounting hole pattern.
The RSM contains all of the sensors that must be remotely located from the EFD display unit.
The RSM is powered by the EFD through a shielded wire harness and contains the Magnetic
“flux” sensors.
All RSM versions must be mounted in a magnetically quiet environment. The -002 RSM may be
mounted internally within the fuselage or wing structure or externally on the fuselage. The -
003 bottom mount RSM can be mounted internally in the upside down orientation or
externally on the underside of the aircraft. The -001 RSM is eligible for installation.
CAUTION: Do not mount an RSM made for inverted operation on the top of the aircraft as reverse
magnetic sensing will result, producing unacceptable AHRS performance.
3.4
Configuration Module (CM)
The Configuration Module retains system configuration settings and calibration data. The
Configuration Module connects to the EFD through a short, fabricated, harness and is fastened
to the main wiring bundle of the display.
Each display has an associated Configuration Module that retains that display’s aircraft
specific configuration, calibration data and user settings. This scheme permits the display
hardware to be replaced without re-entering the installation settings or re-calibrating the EFD.
3.5
Analog Converter Unit (ACU)
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 signals supported by the EFD. Control parameters, such as desired heading and
selected course, 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:
Interface to supported autopilots
Interface to supported non-ARINC 429 VLOC navigation radios
Interface to supported non-ARINC 429 GPS navigators
If digital radios (i.e., Garmin 4XX/5XX and similar series radios) are equipped in the aircraft
and no other aircraft interfaces are to be used, then the ACU is not required.
3.6
Analog Converter Unit 2 (ACU2)
The optional ACU2 provides all the features of the standard ACU above but adds the following
capabilities: