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NOTE: If power limited wiring is not used within a
System 3 enclosure, the following guidelines
do not apply. In that case, be sure to follow
standard wiring practices.
WIRING ENTERING THE ENCLOSURE
Non-power Limited Wiring
Wiring to the System 3 module terminations shown in
Table 1 is considered non-power limited and must
enter through the knockouts in the top right side of the
enclosure (See Figure 2). Wiring between the knock-
outs specified and the module termination must be in
the shortest route, and must not overlap any other
wiring.
T
A
M
O
D
U
L
E
T
E
R
M
A
A
3 -
0
U
T
B
1
P
A
E
3 -
0
U
T
B
1
P
B
C
3 -
7
A
l l
P
o
C
P
3 -
5
T
B
P
o
C
P
3 -
5
T
B
P
o
P
M
3 -
2
A
l l
P
o
P
S
3 -
5
T
B
1
P
P
S
3 -
5
S
T
B
1
P
P
S
3 -
5
2 /
2
0
T
B
1
P
R
C
3 -
0
U
A
l l
P
o
R
M
3 -
0
U
A
l l
P
o
S
M
3 -
0
A
l l
P
o
S
R
3 -
0
A
l l
P
o
S
R
3 -
2
T
B
P
o
1
4
3 -
, 1
S
R
3 -
5
A
l l
P
o
T
C
3 -
0
U
A
l l
P
o
T
R
- I
R
T
B
P
o
WIRING IN THE ENCLOSURE
Non-power Limited Wiring
Wiring from the batteries to the BC-37 is considered
non-power limited. To maintain the required separa-
tion, the wiring must be routed in the right side of the
enclosure.
All wiring within the enclosure must be routed as
shown in Figure 2. To maintain the required ¼ inch
minimum spacing, tie-wrap the wiring to the
module mounting screws.
B
L
E
1
N I
A
T
O I
N
o
t i s
o i
n
, 3
, 4
, 7
8
o
t i s
o i
n
, 3
4
t i s
o i
s n
t i s
o i
n
1
3
2 -
1
t i s
o i
n
3
2
3 -
, 5
3
, 7
3
8
t i s
o i
s n
o
t i s
o i
n
, 1
, 2
4
6 -
o
t i s
o i
n
, 1
, 2
4
6 -
o
t i s
o i
n
, 1
, 2
4
6 -
t i s
o i
s n
t i s
o i
s n
t i s
o i
s n
t i s
o i
s n
t i s
o i
n
- 2
, 4
- 6
, 8
1
0
1 -
, 2
3
3
3 -
, 5
3
7
3 -
, 9
4
1
4 -
3
t i s
o i
s n
t i s
o i
s n
t i s
o i
n
6
8 -
WIRING ENTERING THE ENCLOSURE
Power Limited Wiring
Wiring to the System 3 module terminations shown in
Table 2 is considered power limited and must enter
through the knockouts in the top left side of the
enclosure (See Figure 2).
M
O
D
U
L
E
I B
3 -
5
C
P
3 -
5
T
L
3 -
0
U
T
R
- I
D
T
R
- I
R
T
I R
S -
Z
N
3 -
1
U
Z
N
3 -
4
U
A
U /
S
Z
U
3 -
5
3 /
5
T
S
3 /
5
D
S
WIRING LEAVING THE ENCLOSURE
Power Limited Wiring
Where power limited wiring is desired for audible
circuits, use the model PLM-35. Refer to the PLM-35
Installation Instructions, P/N 315-093495, for informa-
tion on installation of the module and wiring to the
audible circuits.
2
T
A
B
L
E
2
T
E
R
M
N I
A
T
O I
N
T
B
P
o
t i s
o i
n
4
1 -
0
T
B
P
o
t i s
o i
n
1
1 -
2
A
l l
P
o
t i s
o i
s n
T
B
P
o
t i s
o i
n
1
7 -
T
B
P
o
t i s
o i
n
1
5 -
T
B
P
o
t i s
o i
n
1
5 -
T
B
P
o
t i s
o i
n
1
6 -
T
B
P
o
t i s
o i
n
1
1 -
2
T
B
P
o
t i s
o i
n
1
1 -
2
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