EFD1000 E5 Dual Electronic Flight Instrument (EFI) Install Manual
DOCUMENT # 900-00041-001 PAGE 88-226 REVISION D
© Copyright 2019 Aspen Avionics Inc.
Pressure Altitude (Baro corrected)
(1) These labels are the only ones transmitted when no ACU is configured.
*The label rate has a tolerance of +/- 15%
Table 8-4: EFD1000 E5 A429 GPS Output
8.2 ACU Electrical Specifications (910-00004 all dash numbers)
8.2.1 Power Input
Nominal Input: .................. 14Vdc or 28Vdc
Operating Range: .............. 11Vdc to 32Vdc
8.2.2 Reserved
8.2.3 VLOC Receiver
8.2.3.1 NAV Composite Input
An input connected to the composite output of a VHF Navigation receiver.
Nominal Input: .............. 0.5Vrms VOR
..................................... 0.35Vrms Localizer
Input Impedance: .......... 100K ohms
8.2.3.2 ILS Energize Discrete Input
Low impedance to ground supplied from a Navigation receiver when it is tuned to a
localizer frequency.
Active: ........................... Less than 500 ohms to ground or less than 1.5Vdc
Inactive: ........................ Open circuit sinking less than 1 ma to ground at 28Vdc
8.2.3.3 Glide Slope Deviation Input
A low level differential input that accepts a glide slope signal from an external VHF Nav
receiver.
Input Range: ................. ±150mVdc full scale
Max Input Range: .......... ±400mVdc
Load: ............................ 1000 ohm
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