COMPONENT MAINTENANCE MANUAL
AVIATION PRODUCTS
Model FA5000
Rev. 02 Page 5
July 21/17
Description and Operation
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rupt service routines. These interrupt service routines will examine the data being sent to
the processor and pass it to the appropriate task. ARINC 429 DataLink messages are
passed to the DataLink task, and digitized audio packets are passed to the CVR task.
These tasks are also sent other types of data that are needed for proper processing (i.e.
discretes, rotor speed, UTC, etc.). Each data processing task will create packets of data
that can be used for storage in the CSMU. These packets are sent to the Data Storage
task which will write them to the appropriate place in the CSMU.
The BITE task is used to store fault log information as well as other system-related infor-
mation. All tasks will be able to communicate with the BITE task for the purpose of send-
ing fault information and/or system status information.
The user can interface to the Model FA5000 CVR in several different ways. All of the in-
terfaces use an Ethernet network as the means for transferring data. The most common
interface will be to a web server via an HTTP connection. This will present web pages to
the user that will allow for real-time data monitoring, system status monitoring, CSMU da-
ta retrieval, and other recorder-specific functions. The user will also be able to create an
FTP connection that can be used in conjunction with the file system to retrieve data
stored in the CSMU. For testing purposes, a TCP/IP connection can be made with the
GSE task to perform operations that are normally not intended for the end-user.
The document reference is online, please check the correspondence between the online documentation and the printed version.