COMPONENT MAINTENANCE MANUAL
AVIATION PRODUCTS
Model FA5000
Rev. 02 Page 54
July 21/17
Description and Operation
23–70−30
Use or disclosure of information on this sheet is subject to
the restrictions on the cover page of this document.
terface level and is unaffected by any link layer, or above, data content. This means
that the CVR will record all 32 bits of each and every SAL 157 or 156 word received
on the DataLink input.
As a result, the CVR will not be impacted by any changes or additions to the ap-
proved DataLink message set. Likewise, the CVR DataLink recording function is not
affected by the ARINC 619 General Format Identifier (GFI) coding or by the Extend-
ed GFI header encoding currently defined for message encapsulation. This tech-
nique provides the maximum flexibility in DataLink recording without the need for fu-
ture CVR changes as the approved message set or associated encapsulation proto-
cols continue to evolve.
A generic DataLink encapsulation structure is illustrated in Figure 2.1 below.
The document reference is online, please check the correspondence between the online documentation and the printed version.
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