L3 FA2100 CVR Component Maintenance Manual With Illustrated Parts List page 132

The fault signal is indicated for any of the following (as per ED112 §2−1.4.2):
F
F
F
The following list explains system failures intended to be displayed with the
message: "CVR SYSTEM FAULT"
P/N 2100−1X25/1X26/1X27−( ) Software Fault Warning Failures
SSCVR label 350 bit 11
Failure of the audio circuit
Failure of the recording
Failure of the recorder to
store Information In the
storage medium
Insufficient audio or UTC
time record duration
CVR Inhibited (pin 10 acti-
(3) Data Link (ATC) Interface (p/ns: 2100−1X25/1X26/1X27−( ) only)
The FA2100CVR, p/n: 2100−1X25/1X26/1X27−( ) only can interface with the
Data Link Systems from other aircraft programs (ATSU on SA/LR or even
CMU).
The FA2100CVR is designed to support V3 Williamsburg Protocol high and V1
Williamsburg hardware provision.
The "data link recording" information status is taken into account by the A429
CVR output through the label 350 bit 16. (0 = ok and 1=failure), as per ARINC
757.
The CVR receives all data link messages on pins 33/34 (DATALINK IN 429) as
per ARINC 757 characteristics.
Use or disclosure of information on this sheet is subject
to the restrictions on the cover page of this document.
The document reference is online, please check the correspondence between the online documentation and the printed version.
AVIATION RECORDERS
COMPONENT MAINTENANCE MANUAL
FA2100CVR
failure of the audio or digital interface and processing equipment.
failure of the recording medium and/or drive mechanism.
failure of the recorder to store the information in the storage medium as
shown by checks fo the recorded material including, if reasonably practi-
cable, correct correspondence with the inputs.
Table 9.
CVR CU label 350 bit 13
Control Unit loads Its pow-
er supply below 15.5 Volts.
medium
vated)
DataLink Recording label
350 bit 16
Failure of the recording
medium
Failure of the recorder to
store Information In the
storage medium
Insufficient datalink record
duration
CVR Inhibited (pin 10 acti-
vated)
23–70–04
Description and Operation
Rev. 15 Page 55
Apr. 14/16