EFD1000 E5 Dual Electronic Flight Instrument (EFI) Install Manual
DOCUMENT # 900-00041-001
PAGE 84-226
REVISION D
© Copyright 2019 Aspen Avionics Inc.
7.2.8
ACU Wiring
Wire the ACU as shown in Section 9 keeping all grounds as short as possible. No
additional HIRF shielding is required. The ACU case must be grounded to airframe
ground for proper operation.
7.2.9
Back Up NAV Indicator Wiring
Wire the NAV indicator as shown in Figures 9-24, 9-25, and 9-26. Do not parallel more
than one NAV Indicator to each ACU. When paralleling the wiring make the splice is as
close to the navigation receiver as practical. Do not splice the connection at the back of
the NAV indicator.
7.2.10
Autopilot Wiring
Wire the autopilot to ACU as shown in Section 9. Remove any existing connections and
switching between GPS and NAV receivers to autopilot. Only ARINC 429 wiring may
remain between the GPS and autopilot for NAV mode GPSS. The ACU will perform all
switching functions to autopilot for GPS1 and NAV1.
7.2.11
Backup Instrument Wiring and Cable bundle
Any existing wiring/cabling or tubing going to or coming from the backup turn and slip,
altimeter or the airspeed indicator must not route directly behind the rear of the EFD1000
E5 display head. Ensure it is secured away and below the display head fan assembly.
