EFD1000 E5 Dual Electronic Flight Instrument (EFI) Install Manual
DOCUMENT # 900-00041-001
PAGE 99-226
REVISION D
© Copyright 2019 Aspen Avionics Inc.
Pin
Number
Name
Input /
Output
Function
J3-4
429TX2A
OUTPUT ARINC 429 Port 2 Transmit A
J3-5
429TX2B
OUTPUT ARINC 429 Port 2 Transmit B
J3-6
OBS SIN -
OUTPUT Sin of selected course angle (L)
J3-7
OBS COS -
OUTPUT Cos of selected course angle (L)
J3-8
ROTOR C
OUTPUT OBS sin/cos excitation (L)
J3-9
+15V-EXT-
OUT
OUTPUT In15Vdc reference
J3-10
SIGNAL-COM
-
Signal ground
J3-11
HDG/CRS-COM
-
Signal ground
J3-12
Reserved
-
Reserved
J3-13
Reserved
-
Reserved
J3-14
429RX1B
INPUT
ARINC 429 Port 1 Receive B
J3-15
429TX1B
OUTPUT ARINC 429 Port 1 Transmit B
J3-16
SIGNAL-COM
-
Signal ground
J3-17
GPS SELECTED
OUTPUT Active Low signal to drive GPS and Autopilot inputs.
J3-18
OBS SIN +
OUTPUT Sin of selected course angle (H)
J3-19
OBS COS +
OUTPUT Cos of selected course angle(H)
J3-20
ROTOR H
INPUT
OBS sin/cos excitation (H)
J3-21
ARINC-HDG-
CRS-EXT
-
26Vac reference to emulate an ARINC synchro
interface
J3-22
HDG-DATUM
OUTPUT Heading Datum output
J3-23
HDG-CRS-
DATUM-EXT
INPUT
Heading/Course Datum excitation input
J3-24
Reserved
-
Reserved
J3-25
HDG-CRS-OFST
INPUT
Heading/Course Datum excitation offset input
Table 8-15: ACU J3 Pin Out
Figure 8-6: ACU J3 Connector (as viewed from front of unit)
Pin
Number
Name
Input /
Output
Function
J4-1
+15VDC Out
OUTPUT 15Vdc power to external equipment
J4-2
429TX3B
OUTPUT ARINC 429 Port 3 Transmit B
J4-3
429RX3B
INPUT
ARINC 429 Port 3 Receive B
J4-4
400HZ-REF-LO OUTPUT 400Hz excitation for heading synchro
J4-5
HDG Y
OUTPUT Heading synchro (Y-Z)
J4-6
DME1-DATA +8V
INPUT
N/A
1
14
13
25
