L3 FA5000 Component Maintenance Manual With Illustrated Parts List

COMPONENT MAINTENANCE MANUAL
AVIATION RECORDERS
Model FA5000
Initital Issue Page 21
Sep. 30/11
Description and Operation
23–70−40
Use or disclosure of information on this sheet is subject to
the restrictions on the cover page of this document.
33 FDR DATA INPUT ARINC
717 LOW
IN ARINC 717 differential serial flight data input sig
nal, Line B, received from an aircraft data acquisi
tion unit. Format is defined in ARINC Characterist
ics 573, 717, and 747. Data rate of 64 wps, 128
wps, 256 wps, or 512 wps is determined by FDR
DATA RATE A and FDR DATA RATE B. RS422
differential levels with input impedance greater
than 100 kohms.
34 FDR DATA OUTPUT ARINC
717 LOW
OUT ARINC 717 differential serial flight data output sig
nal, Line B. Data output is the FDAU input data
buffered and returned to the FDAU. Format is
defined in ARINC Characteristics 573, 717, and
747. The differential output is RS422, slew rate
controlled, and with impedance of 85 ohms.
35 ATC DIGITAL INPUT LOW IN Line B input of a standard ARINC 429 compliant
differential pair that provides Controller Pilot Data
Link Communication (CPDLC) using the Williams
burg V3 file data transfer protocol.
36 ATC DIGITAL INPUT HIGH IN Line A input of a standard ARINC 429 compliant
differential pair that provides Controller Pilot Data
Link Communication (CPDLC) using the Williams
burg V3 file data transfer protocol.
37 AREA MICROPHONE 18V
POWER
OUT +18 ±2 VDC output for Area Microphone bias.
Maximum operating current is 25 milliamps. Short
circuit limited at approximately 30 milliamps.
38 AREA MICROPHONE
SIGNAL LOW
IN Area Microphone signal return which is connected
by 0 Ohm resistors to CAM signal shield ground,
CAM power shield ground, and CAM power return.
Return is referenced to signal ground.
39 AREA MICROPHONE
SIGNAL HIGH
IN Area Microphone audio signal. Single ended input.
40 ARINC 429 INPUT HIGH IN Line A input of a standard ARINC 429 compliant
differential pair used for receiving GMT / UTC
from a chronometer. The label of the clock is 125
for BCD or 150 for binary.
41 FDR DATA INPUT ARINC
717 HIGH
IN ARINC 717 differential serial flight data input sig
nal, Line A, received from an aircraft data acquisi
tion unit. Format is defined in ARINC Characterist
ics 573, 717, and 747. Data rate of 64 wps, 128
wps, 256 wps, or 512 wps is determined by FDR
DATA RATE A and FDR DATA RATE B. RS422
differential levels with input impedance greater
than 100 kohms.
42 FDR DATA OUTPUT ARINC
717 HIGH
OUT ARINC 717 differential serial flight data output sig
nal, Line A. Data output is the FDAU input data
buffered and returned to the FDAU. Format is
defined in ARINC Characteristics 573, 717, and
747. The differential output is RS422, slew rate
controlled, and with impedance of 85 ohms.
43 +28VDC RETURN
SECONDARY
OUT Ground return for +28VDC power supply second
ary input per TNX131AF329E10, Section 3.4.2.5
(FAR 29.1459 (a) (6))
The document reference is online, please check the correspondence between the online documentation and the printed version.

L3 FA5000 Specifications

General

Brand	L3
Model	FA5000
Category	Voice Recorder
Language	English