L3 FA5000 Component Maintenance Manual With Illustrated Parts List

COMPONENT MAINTENANCE MANUAL
AVIATION RECORDERS
Model FA5000
Initital Issue Page 13
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.
F9 fpga_discrete_Output2 O 3.3VDC CMOS output pulled high to 3.3
volts by default. The CMOS low voltage
output, V
OL,
does not exceed 0.4VDC.
The signal controls an NFET gate hav
ing a 0.7VDC minimum voltage input
threshold. The NFET implements a
shunt discrete output assigned to FDR
MAINTENANCE FAULT. Referenced to
the Signal Ground.
E9 fpga_discrete_Output3 O 3.3VDC CMOS output pulled high to 3.3
volts by default. The CMOS low voltage
output, V
OL,
does not exceed 0.4VDC.
Referenced to the Signal Ground. No cir
cuitry exists on the AI PWA to support
this signal.
H3 Status_Relay_Power O Diode isolated +5 volts DC relay coil
power. Referenced to the Signal Ground.
F7 fpga_FDRMaintenanceRe 
lay_Feedback
I Open/Ground input pulled high to 3.3
volts by default to be used as an optional
feedback to alert the processor of the
relay’s contact closure. Referenced to
the Signal Ground.
E7 fpga_FDRStatusRelay_Feed 
back
I Open/Ground input pulled high to 3.3
volts by default to be used as an optional
feedback to alert the processor of the
relay’s contact closure. Referenced to
the Signal Ground.
F10 fpga_RES_FDR_MAINTEN
ANCE_Control_reset
O No circuitry exists on the AI PWA to sup
port this signal.
E10 fpga_RES_FDR_MAINTEN
ANCE_Control_set
O 3.3VDC CMOS output pulled high to 3.3
volts by default. The CMOS low voltage
output, V
OL,
does not exceed 0.4VDC.
The signal controls an NFET gate hav
ing a 0.5VDC minimum voltage input
threshold. The NFET controls relay coil
current to implement discrete signaling
through the relay contacts. Referenced
to the Signal Ground.
F11 fpga_RES_FDR_STATUS_C
ontrol_reset
O No circuitry exists on the AI PWA to sup
port this signal.
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