Mar 2017 Page 104
DATA ACQUISITION FLIGHT RECORDER Type D51615-202-XXX or D51615-
202-XXX-090 with CCU Type D51616-XXXX and CAM Type D51623-XXXX
Installation and Operating Manual with Illustrated Parts
List
Commercial in Confidence
PIM434-I
© Penny & Giles Aerospace Ltd. No part of this work may be reproduced or distributed by any
means without prior permission in writing from the copyright owner.
Table 13 Microphone Cable Details
Wire Signal Cable Requirements
White Bias
24 AWG Screened Twisted
Pair (captive with
microphone)
Black Signal Out Hi
Shield Signal Out Lo
2 INSTALLATION
CAUTION:
CARE MUST BE TAKEN WHEN UNPACKING AND
HANDLING THE AREA MICROPHONE TYPE D51623-
XXXX OR TYPE D51702-XX TO ENSURE THAT THE UNIT
DOES NOT SUFFER UNDUE SHOCK.
The installation details for the Remote Microphone are
detailed in Installation Drawing Figure 23.
Outline dimensions and fixing centres for the Remote
Microphone are shown in ARINC 757, Attachment 18.
2.1 WIRING
The recommended minimum wiring sizes are shown in Table
13 for the remote Area Microphone. The electromagnetic
environment will set the limit on cable length to the
microphone. The microphone is supplied with a 293±10 mm
long cable as standard.
The Area Microphone Record Level (attenuation) setting links
are to be as short as possible.
A typical installation wiring diagram for a generic DAFR, CCU
and CAM installation is shown in Figure 7.
2.2 CAM LOCATION
Figure 25 and Figure 26 show the preferred locations and
spacing for the Cockpit Area Microphone.
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