COMPONENT MAINTENANCE MANUAL
AVIATION RECORDERS
Model FA5000
Initital Issue Page 23
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.
54 COCKPIT AREA MIC INPUT
ATTENUATION COMMON
(GND)
IN Signal ground reference output for the grounding
of pins 48, 49, 50 individually, or combined, to set
the microphone gain selection in voice recorders
having an internal microphone preamplifier. See
Table A2 below.
55 +28VDC INPUT PRIMARY IN +28VDC power supply primary input per
TNX131AF329E10, Section 3.4.2.5
(FAR 29.1459 (a) (6)). Current limited at 2A.
The document reference is online, please check the correspondence between the online documentation and the printed version.
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