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CN-2676
MIC1 (RTS1)
CN1
FL1
GND
G
AUDIO
1
2
MIC1(X)OUT
EMI
2
1
OUT
IN
1
3
GND
OUT
3
JC1
0
GND
NM
FL2
MIC1(Y)OUT
EMI
2
1
OUT
IN
GND
3
GND
FL3
MIC1(G)OUT
EMI
2
1
OUT
IN
GND
3
GND
MIC2(RTS2)
CN2
FL4
GND
G
1
2
MIC2(X)OUT
EMI
2
1
OUT
IN
AUDIO
3
GND
JC6
2
3
0
OUT
GND
NM
FL5
MIC2(Y)OUT
EMI
2
1
OUT
IN
GND
3
GND
FL6
MIC2(G)OUT
EMI
2
1
OUT
IN
GND
3
GND
HDCU2500
JC2
0
JC3
0
JC4
0
NM
JC5
0
MIC1(G)
1
RTS1i/o(ENG)
MIC1(Y)out
2
RTS1i/o(PROD)
MIC1(X)out
3
RTS1i/o(GND)
MIC2(X)out
4
RTS2i/o(ENG)
MIC2(Y)out
5
RTS2i/o(PROD)
MIC2(G)
6
RTS2i/o(GND)
7
8
CN3
GND
JC7
0
JC8
0
JC9
0
NM
JC10
0
CN-2676
BOARD No. 1-867-897-11, 31
HDCU1500_CN-2676-011_1
CN-2677G
CN1
1
422TX1(X)/232TX1
2
422TX1(Y)
3
(AUX-a)
4
422TX0(Y)
5
422TX0(X)/232TX0
TRUNK
6
422RX0(X)/232RX0
A
7
422RX0(Y)
8
422RX1(Y)
CN-2675G
9
422RX1(X)/232RX1
CN9
10
GND
11
(AUX-b)
12
(AUX-c)
GND
CN-3451
CN2
1
Incom-Talk(g)
2
Incom-Talk(x)
470pF
3
Incom-Talk(y)
4
Incom-GND
AU-340
CN4
5
Incom-RCV(x)
6
Incom-RCV(y)
7
Incom-PGM(x)
8
Incom-PGM(y)
10
9
C3
C2
1000pF
1000pF
GND
FL1
2
EMI
1
OUT
IN
GND
3
FL2
GND
2
EMI
1
OUT
IN
GND
3
FL3
GND
2
EMI
1
OUT
IN
GND
3
FL4
GND
2
EMI
1
OUT
IN
GND
3
GND
FL5
EMI
2
1
OUT
IN
GND
3
FL6
GND
EMI
2
1
OUT
IN
GND
3
FL7
GND
EMI
2
1
OUT
IN
GND
3
FL8
GND
EMI
2
1
OUT
IN
GND
3
GND
C1
C2
C3
0.001uF
0.001uF
0.001uF
GND
INTERCOM
L1
2
S
1
C1
3
4
S
1:Talk-Y
6
CN1
2:Talk-X
FB2
5
1
3:GND
FB3
4
2
4:Receive
5:PGM
3
FB4
NM
FB1
CN-3451
BOARD No. 1-885-966-11
CN-3451_1
CN2
GND
1
422TX1(X)/232TX1
2
422TX1(Y)
3
422TX0(Y)
4
422TX0(X)/232TX0
5
GND
6
422RX0(X)/232RX0
7
422RX0(Y)
8
CN-2675G
CN7
422RX1(Y)
9
422RX1(X)/232RX1
10
GND
11
(AUX-a)
12
(AUX-b)
13
(AUX-c)
14
GND
15
16
17
18 19
GND
CN-2677G
BOARD No. 1-867-898-11, 31
HDCU1500_CN-2677-011_1
8-22
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