Mar 2017
Page 97
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.
The Cockpit Control Unit is packed in a Penny & Giles
standard trade container, unless otherwise negotiated with
the Customer. The unit should not be removed from the
packaging until required for use. When unpacking the unit,
care should be taken to ensure that it does not undergo
undue shock. The packaging should be retained for future
use.
4 INSTALLATION
CAUTION:
CARE MUST BE TAKEN WHEN UNPACKING AND
HANDLING THE CONTROL UNIT TYPE D51616-XXXX TO
ENSURE THAT THE UNIT DOES NOT SUFFER UNDUE
SHOCK.
The installation detail for the Control Unit depends on case
configuration and is detailed in Figure 19 and Figure 20.
4.1 WIRING
The recommended minimum wiring sizes are shown in Table
10 for CCU Type D51616-1XXX and Table 11 for CCU Type
D51616-2XXX. These sizes are applicable for runs of up to
100 metres. For variants with an Internal Preamplifier and
remote Cockpit Area Microphone, the electromagnetic
environment will set the limit on cable length to the
microphone.
A typical installation wiring diagram for a generic DAFR and
CCU installation is shown in Figure 7.
.
4.2 SIGNAL
LEVELS
When setting the Attenuation Links for the Cockpit Area
Microphone Preamplifier, it must be remembered that signal
levels encountered in flight will be higher than those
encountered on the ground and the attenuation therefore set
accordingly. Confirmation of optimum attenuation level
should be established by subjective evaluation of recordings
made during flight.