COMPONENT MAINTENANCE MANUAL
AVIATION RECORDERS
FA2100CVR
Rev. 15 Page 41
Apr. 14/16
Description and Operation
23–70–04
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sor. The Store Manager Processor gathers audio data from the Audio Compressor,
packetizes the data, and saves the data into the flash memory contained in the
Crash Survivable Memory Unit (CSMU).
Table 7. Acquisition Processor (AP) PWA Current Configuration Where Used
Acquisition Processor
PWA P/N
Model Effectivity
Notes
205E250221
2100
−
1010
−
00
2100
−
1020
−
00
2100
−
1020
−
02
2100
−
1220
−
00
2100
−
1220
−
02
Compatible with 3V Intel
Memory
205E250214
2100
−
1025
−
02
2100
−
1025
−
12
2100
−
1025
−
22
2100
−
1025
−
24
2100
−
1225
−
22
2100
−
1225
−
24
Data Link
205E250224
2100
−
1026
−
02
2100
−
1226
−
02
205E250234
2100
−
1027
−
02
2100
−
1227
−
02
205E250238
2100
−
1010
−
50
2100
−
1010
−
51
2100
−
1020
−
50
2100
−
1020
−
51
Compatible with 3V Intel
Memory
The Acquisition Processor interfaces with three internal functional modules: Aircraft
Interface, Audio Compressor, and CSMU. Additionally, is an external interface to the
Ground Support Equipment (GSE).
(1)
Aircraft Interface
The Aircraft Interface (AI) Interface involves the following external power inputs
and outputs:
(a)
External power input +39 Vdc storage supply, +15 V, and +5 V (storage)
from the Aircraft Interface PWA.
(b)
External power 18 V preamp power, +5 V, and
$
12 V to the Air-
craft Interface PWA.
(2)
Audio Compressor
The Audio Compressor (AC) Interface consists mainly of the Time Division Mul-
tiplexing (TDM) bus. Audio data is transmitted by the AC via the TDM bus to
the Store Manager Processor (SMP). Additionally, an 8.192 MHz clock is out-
put to the AC to be used as the time base for audio sampling. AC Reset and
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