COMPONENT MAINTENANCE MANUAL
AVIATION RECORDERS
FA2100CVR
Rev. 15 Page 20
Apr. 14/16
Description and Operation
23–70–04
Use or disclosure of information on this sheet is subject
to the restrictions on the cover page of this document.
23
+V
CVR
RELAY
ENERGIZE = OPEN (NO CVR FAULT)
DE-ENGERIZED = GRN (CVR FAULT)
CVR FAULT LIGHT
ANNUNCIATOR
PANEL
REAL TIME
OPEN = FAULT
GND = NO FAULT
Figure 6.
GACVR Fault Circuit for Pin 23
K.
Crash Survivable Memory Unit
The Crash Survivable Memory Unit (CSMU) is the environmentally hardened
memory storage assembly of the Model FA2100. Electrical interface to the CSMU is
made by the Acquisition Processor PWA via a single 16-contact connector at con-
nector J1.
L.
Crash and Fire Protection
The Crash Survivable Memory Unit (CSMU) construction enables the Model
FA2100CVR to meet or exceed the rigorous crash protection requirements of
EUROCAE ED–56A, ED
−
112 and TSO-123a.
M.
Control Unit, Microphone & Preamplifier Equipment
Refer to Aviation Recorders ED-56A Compliant Control Unit, Preamplifier and Micro-
phone CMM, ATA No. 23-70-05, Part Number 165E1747-00, for more detailed infor-
mation of these ancillary recorder components.
A Control Unit or Preamplifier is a required component of a CVR installation and
functions as the FA2100CVR cockpit user interface; however, this is not required for
GACVR recorders. Control Units contain a preamplifier for interfacing the cockpit
area microphone with the CVR, and provide a means for activating the test function,
by pressing a green TEST push button and observing an green TEST indicator.
Bulk erasure of the FA2100CVR storage media is also accomplished by pressing the
Control Unit’s red ERASE push button. All Control Units contain a headset jack for
verifying system operation.
The document reference is online, please check the correspondence between the online documentation and the printed version.