Mar 2017 Page 91
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.
Control Inputs
(a) 6dB
ATTENUATION:
Connect to ATTENUATION COMMON
to attenuate microphone input signal
by 6dB. May be used in addition to
the 12dB and 24dB ATTENUATION
control inputs to give attenuation of
between 0dB and 42dB.
(b) 12dB
ATTENUATION:
Connect to ATTENUATION COMMON
to attenuate microphone input signal
by 12dB. May be used in addition to
the 6dB and 24dB ATTENUATION
control inputs to give attenuation of
between 0dB and 42dB.
(c) 24dB
ATTENUATION:
Connect to ATTENUATION COMMON
to attenuate microphone input signal
by 24dB. May be used in addition to
the 6dB and 12dB ATTENUATION
control inputs to give attenuation of
between 0dB and 42dB.
(d) ATTENUATION
COMMON:
See (a) to (c) above.
(e) CVR FAULT: High causes the ‘CVR FAIL’ indicator
to be extinguished.
(f) FDR FAULT: High causes the ‘FDR FAIL’ indicator
to be extinguished.
Signal Inputs
(a) MIC 1 INPUT HI These inputs are either for
connection to the integral
microphone (part number option
X1XX) or the main remote
microphone (part number option
X0XX). If a two-microphone
installation is used then the signals
from the two will be summed.
MIC 1 INPUT LO
MIC 1 INPUT BIAS
MIC 1 INPUT
SHIELD
(b) MIC 2 INPUT HI
These inputs are for connecting an
additional remote microphone. If a
two-microphone installation is used
then the signals from the two will be
summed.
MIC 2 INPUT LO
MIC 2 INPUT BIAS
MIC 2 INPUT
SHIELD
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