EFD1000 Installation Manual
DOCUMENT # A-01-126-00 PAGE 89-225 Revision H
© Copyright 2009 Aspen Avionics Inc.
9 Installation Wiring Diagrams
The following Section contains wiring diagrams for common interfacing equipment to the PFD,
ACU, RSM, and Configuration Module. Although the list of interfacing equipment is quite extensive
it does not cover all compatible equipment. For interfaces that are installed but not shown it is
required by the ICAs that a drawing be made and inserted into Appendix D of this document.
All other drawings used from this section by the installer must be copied and inserted into
Appendix D.
There will be some GPS receivers not shown on these drawings that will be compatible with the
EFD1000 system. The EFD1000 is compatible with ARINC 429, RS-232, and analog GPS receivers.
For flight plan information to be presented on the PFD an RS-232 or ARINC 429 interface is
required. Should an RS-232 or ARINC 429 bus not be available or incompatible then the GPS can
still be connected to the EFD1000 system using analog signals to drive the HSI deviation
indications. In this situation, GPS flight plan data will not be available. It will be up to the installer
to verify the interface is fully functional by performing a complete ground check of the system.
There are also VLOC receivers not shown in these drawings that can be connected either by ARINC
429 to the PFD or through VOR composite video into the ACU. Any radio with a nominal output of
0.5Vrms VOR or 0.35Vrms Localizer composite video format are supported. It will be up to the
installer to verify the interface is fully functional by performing a complete ground check of the
system.
The EFD1000 Pro with ACU emulates a Bendix King KI-525A and NSD-360A HSI by providing
outputs for HDG Datum and CRS Datum to an autopilot. The EFD1000 is compatible with any
autopilot that is compatible with a KI-525A or NSD-360A HSI. Should connections be made to an
autopilot not shown in these drawings the installer must verify the interface is fully functional by
performing a complete ground and flight check of the system per the autopilot manufacturer’s
installation manual or maintenance instructions.
The EFD1000 Pro with ACU also emulates the Bendix King KI-254/256, ARC G-550A, and Century
52C77 flight director indicators. All autopilots that output flight director signals that are KI-
254/256, G-550A, or 52C77 compatible are also compatible with the EFD1000 flight director
display.
To begin planning the electrical installation, select the drawing in the list below preceded by an “*”
that matches the aircraft equipment configuration, and then wire as shown. GPS1, GPS2, NAV1,
NAV2, and the autopilot are options on each page. Simply make the connections to the equipment
you plan to install and omit the units from the drawing you don’t. You will configure the system
later based upon the Configuration ID#s shown in the Configuration Matrix on each drawing.
Aspen Avionics Inc. uses the terms “GNAV” when referring to a combination GPS/VLOC Receiver
with an integral CDI source select (i.e., GNS-430), “GPS” for a standalone GPS Receiver (i.e., GNS-
400, KLN90B), and “VLOC” for stand alone VOR/Localizer equipment (i.e. KX-155, SL30).
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