COMPONENT MAINTENANCE MANUAL
AVIATION RECORDERS
Model FA5000
Initital Issue Page 20
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.
23 CHANNEL 3 INPUT LOW IN Channel 3 audio differential input signal low; 150
Hz to 3.5 kHz bandwidth, 3V RMS maximum. Im
pedance 5K ohm minimum.
24 CHANNEL 3 INPUT HIGH IN Channel 3 audio differential input signal high; 150
Hz to 3.5 kHz bandwidth, 3V RMS maximum. Im
pedance 5K ohm minimum.
25 VIDEO IN () IN Differential video input, Input impedance is 75
Ohms.
26 VIDEO IN (+) IN Differential video input, Input impedance is 75
Ohms.
27 ARINC 429 OUTPUT LOW OUT Line B output of an ARINC 429 compliant differen
tial pair used for the OnBoard Maintenance Sys
tem (OMS) as described in ARINC 604 and 624.
Also used for data link recorder handshaking using
the ARINC 429 Williamsburg V1 file data transfer
protocol. Supports either low speed or high speed
bit rates.
28 ARINC 429 OUTPUT HIGH OUT Line A output of an ARINC 429 compliant differen
tial pair used for the OnBoard Maintenance Sys
tem (OMS) as described in ARINC 604 and 624.
Also used for data link recorder handshaking using
the ARINC 429 Williamsburg V1 file data transfer
protocol. Supports either low speed or high speed
bit rates.
29 FDR INPUT DATA RATE
PROGRAM PIN A
IN FDR input data rate program pin A. FDR DATA
RATE A along with FDR DATA RATE B defines
the rate of received ARINC 717 data. Signal is a
shunt discrete input. Program Pin A routed to Pro
gram Pin B and Program B routed to Program Pin
A to achieve ARINC 757 compatibility in software.
INPUT RATE PROGRAMMING
(Not ARINC 757 compliant):
PIN 29 (A) PIN 30 (B) SPEED
(wps)
OPEN OPEN 64
GND OPEN 128
OPEN GND 256
GND GND 512
OPEN OPEN 1024
30 FDR INPUT DATA RATE
PROGRAM PIN B
IN FDR input data rate program pin B. FDR DATA
RATE A along with FDR DATA RATE B defines
the rate of received data from the FDAU as
defined in ARINC Characteristic 757. Signal is a
shunt discrete input.
31 AREA MICROPHONE
POWER SHIELD GROUND
RETURN
IN Connected to Pin 38, AREA MICROPHONE
SIGNAL LOW, through a 0 Ohm resistor.
32 ARINC 429 INPUT LOW IN Line B 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.
The document reference is online, please check the correspondence between the online documentation and the printed version.
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