L3 FA2100 CVR Component Maintenance Manual With Illustrated Parts List page 105

STANDARD INTERWIRING PER ARINC SPEC 757A
(Data Link wiring IAW ARINC Spec 757A Paragraph 3.9)
TO 115 VAC, 400 HZ
TO AC COLD
2, 8
OR
TO DC POWER IN
28 VDC
28 VDC RETURN
CONTROL UNIT
PUSH TO TEST
PREAMP PWR GND
PREAMP PWR HOT (+18 VDC REG)
CHASSIS GND
VOICE ERASE "A"
VOICE ERASE "C"
OUTPUT LO
OUTPUT HI
MIC INPUT LO
MIC INPUT HI
MIC BIAS
AUDIO MONITOR LO
AUDIO MONITOR HI
15
LIGHTING COMMON
15
LIGHTING 28V
MICROPHONE
MIC BIAS (WHITE)
MIC HIGH (BLACK)
MIC LOW (SHEILD))
13
Figure 8. ARINC 757A Interwiring Diagram, Recorder FA2100 CVR
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
1
AMP
5
3
AMPS
A
B
C
D
E
F
G
H
J
3
K
L
TO ANNUNCIATOR
M
N
P
FROM CAPTAIN'S
R
S
T
U
SPARE MICROPHONE
V
TO 3RD CREW
W
MEMBER OR
X
Y
Z
a
b
MICROPHONE
c
d
e
f
g
h
i
j
k
m 6
n
COCKPIT AREA MICROPHONE
p
q
r
s
t
BRAKE
BULK ERASE INTERLOCK (TYPICAL)
(2100-1X27-XX)
VOICE RECORDER UNIT
(2100−1027−02 wiring shown for
reference)
115 VAC POWER IN COLD
1
115 VAC POWER IN HOT
2
3
4
5
5
6
7
8
9 +28 VDC POWER IN
4
10
11
8
12
13
14
15
16
17
18
19
9
20
21
22
23
OR MAINT.
24
COMPUTER
25
26
CLOCK
27
28
29
30
31
PA SYSTEM 32
33
10, 11
34
35
TO COPILOT
36
37
10 38
39
40
41
TO PILOT
MICROPHONE 42
43
44
10, 11
45
46
47
48
FROM ROTOR
SPEED 49
SENSOR
50
51
52
3, 7
53
54
55
56
57
GEAR
5
28 VDC RETURN/SIGNAL GROUND
AUDIO OUT LO
AUDIO OUT HI
RECORD ON B
RECORD ON A
STOP RECORDING/RIPS ACTIVE INPUT
PUSH TO TEST
PREAMP PWR OUT GND
PREAMP PWR OUT HOT (+18 VDC REG)
CHASSIS GND 3
CVR FAULT
GMT IN B (ARINC 429) LO
12
GMT IN A (ARINC 429) HI
16
RIPS FAULT INPUT
CHANNEL 1 LO
INPUT
DATA LINK FAULT CHANNEL
1
CHANNEL 1 HI
DATA LINK IN (429) B
14
DATA LINK IN (429) A
CHANNEL 2 LO
INPUT
CHANNEL
2
CHANNEL 2 HI
RIPS MAINTENANCE INPUT
OMS IN (429) B
14
OMS IN (429) A
CHANNEL 3 LO
INPUT
RIPS PRESENT INPUT
CHANNEL
CHANNEL 3 HI
3
RES - CVR REPLAY INHIBIT/
PLAYBACK INHIBIT
CHANNEL 4 LO
INPUT
CHANNEL
4
CHANNEL 4 HI
ROTOR SPEED IN LO
ROTOR SPEED IN HI
DATA LINK V1/OMS B OUT
14
DATA LINK V1/OMS A OUT
VOICE ERASE "A"
14
DATA LINK VALID
VOICE ERASE "C"
23–70–04
Description and Operation
Rev. 15 Page 28
Apr. 14/16
17