L3 FA2100 CVR Component Maintenance Manual With Illustrated Parts List page 127

The memory model for the two hour CVR is physically constructed as illustrated in
Figure 12. There are a total of 15 X 32 Mb memory devices allocated to the four
partitions as shown. The 30 minute CVR contains a total of 7 X 32 Mb memory
devices allocated to just the first two partitions, for the HQV and HQC channels.
Due to the amount of sampling required for high quality channels, it takes almost as
many memory devices for 30 minutes of high quality recording as it does for 120
minutes of standard quality recording. For 30 minute recorders the total amount of
physical memory capacity is 24 megabytes. For 120 minute recorders the memory
capacity is 60 megabytes.
2M
Words
2M
Words
2M
Words
2M
Words
HQV = High Quality Voice
HQC = High Quality CAM
SQV = Standard Quality Voice
SQC = Standard Quality CAM
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
2M 2M
Words Words
2M 2M
Words Words
2M 2M
Words Words
2M 2M
Words Words
Figure 12.
2–Hr FA2100 CVR Memory Structure
2M
HQV = 4 Chips
Words
HQC = 3 Chips
SQV = 4 Chips
2M
Words
SQC = 4 Chips
2M
Words
NOTE: This representation does not
include p/n: 2100-1025-( ), which is a
2-hour HQ only recorder.
30 Min.
30 Min.
120 Min.
120 Min.
23–70–04
Description and Operation
Rev. 15 Page 50
Apr. 14/16