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5. CIRCUIT DIAGRAM
S
W
T I
C
H
M
A
D
C
O
N
D
T I
I
O
N
D
O
O
R
O
P
E
N
D
O
O
R
C
L
O
S
P
R
I
M
A
R
Y
•
I
N
T
E
R
L
O
C
K
E
S
W
T I
C
H
C
O
M
N
O
•
E
S
E
C
I
N
T
E
R
L
O
C
K
D
M
O
N
T I
O
R
S
E
S
W
T I
C
H
S
W
C
O
M
C
N
C
•
- 3 -
Figure 2
Figure 2
Figure 2
Figure 2
Figure 2
O
N
D
A
R
Y
I
N
T
E
R
L
O
O
O
R
N
S
I
N
G
R
E
L
A
Y
T I
C
H
O
M
C
O
M
N
O
N
O
•
•
C
K
2
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