L3 FA5000 Component Maintenance Manual With Illustrated Parts List page 62

23 CHANNEL 3 INPUT LOW
24 CHANNEL 3 INPUT HIGH
25 VIDEO IN (­)
26 VIDEO IN (+)
27 ARINC 429 OUTPUT LOW
28 ARINC 429 OUTPUT HIGH
29 FDR INPUT DATA RATE
PROGRAM PIN A
30 FDR INPUT DATA RATE
PROGRAM PIN B
31 AREA MICROPHONE
POWER SHIELD GROUND
RETURN
32 ARINC 429 INPUT LOW
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AVIATION RECORDERS
COMPONENT MAINTENANCE MANUAL
Model FA5000
IN Channel 3 audio differential input signal low; 150
Hz to 3.5 kHz bandwidth, 3V RMS maximum. Im­
pedance 5K ohm minimum.
IN Channel 3 audio differential input signal high; 150
Hz to 3.5 kHz bandwidth, 3V RMS maximum. Im­
pedance 5K ohm minimum.
IN Differential video input, Input impedance is 75
Ohms.
IN Differential video input, Input impedance is 75
Ohms.
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.
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.
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)
(wps)
OPEN
GND
OPEN
GND
OPEN
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.
IN Connected to Pin 38, AREA MICROPHONE
SIGNAL LOW, through a 0 Ohm resistor.
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.
PIN 30 (B) SPEED
OPEN 64
OPEN 128
GND 256
GND 512
OPEN 1024
23–70−40
Description and Operation
Initital Issue Page 20
Sep. 30/11