![background image](http://html2.mh-extra.com/html/valcom/v-9923b/v-9923b_user-manual_3218317006.webp)
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50
25
W/BL
BL/W
W/O
O/W
W/G
G/W
W/BR
BR/W
W/S
S/W
R/BL
BL/R
R/O
O/R
R/G
G/R
R/BR
BR/R
R/S
S/R
BK/BL
BL/BK
BK/O
O/BK
BK/G
G/BK
BK/BR
BR/BK
BK/S
S/BK
Y/BL
BL/Y
Y/O
O/Y
Y/G
G/Y
Y/BR
BR/Y
Y/S
S/Y
V/BL
1
2
3
4
5
BL/V
V/O
O/V
V/G
G/V
V/BR
BR/V
V/S
S/V
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
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36
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42
43
44
45
46
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49
50
T
R
L
LS
INH
TO
RO
OUT
IN
PC
TT
RT
EP1
EP2
AG
AB
BG
BB
A
B
C
D
E
F
PBX AND
KEY SYSTEM
INPUT
ANALOG PBX
ANSWER PORT
SWITCHED
RELAY
OUTPUT
TONE
OUTPUT
EXPANSION
CIRCUIT
POWER
SUPPLY
66B350
FIGURE 3
CB-1