Mar 2017
Page 16
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.
permits the user to change the configurable address via the
web interface.
FDR Data Inputs
The DAFR acquires FDR data from multiple input sources.
These collectively comprise:
3 x ARINC 429 input channels, configurable for both low
and high speed.
4 x analogue potentiometer input channels
1 x analogue accelerometer input source.
6 x discrete input sources
The source of data to be recorded is determined by a
configuration file uploaded at time of manufacture, the source
of this data is defined in the appropriate customer
configuration specification. The acquired data is formatted into
a means suitable for download, processing and replay in
support of an incident.
CVR Audio Channel Inputs
All audio inputs are balanced and have input impedance of
10k
Ω
at 1kHz (nominal). Signal characteristics are defined in
Audio Characteristics. The audio inputs are compatible with the
requirements of ARINC 757 Supplement 2.
Rotor Speed
The DAFR accepts an analogue signal from the Rotor Speed
Input.
Input voltage Range:
1.6V
pk-pk
to 221.4V
pk-pk
with respect to
unit chassis.
Input impedance:
≥
10k
Ω
.
The Rotor Speed signal may be recorded as an integral part of
the Audio record as a parameter representing the signal
frequency with a maximum tolerance of ±2% over the range.
The Rotor speed signal period, the time between recorded
pulses, is valid for periods between 100ms and 1.1ms,
equivalent to a rotor frequency of 10Hz to 900Hz.