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20 CZM-1s, 4 ohms max. Multiple Class B
power connections can be used if you do not
exceed the ratings above (40 CZM-1s max
and 4 ohms per run max). For example, you
could have four individual Class B power runs,
for a total of 40 devices (for example, 12, 8, 6,
and 14 CZM-1s), with each of the four runs not
exceeding 4 ohms resistance.
T-tapping is allowed, provided the total resis-
tance of all wires does not exceed 4 ohms.
6. Refer to Figures 9 and 10 for wiring instruc-
tions for the PS-5A.
MOI-7 Power (P9)
The PSR-1 may be used in standalone mode as
the power supply for the MOI-7. In this configura-
tion the MOI-7 and the PSR-1 must be in the
same enclosure. A separate 5V output is provided
for the MOI-7. The PSR-1 local trouble contact
must also be connected as a means of reporting
PSR-1 troubles to the MXL. See Figure 11 for the
wiring diagram.
See Figure 12 if the MOI-7 is in a separate enclo-
sure. In this configuration do not use the 5V
power on P9. A separate PS-5A must be in-
cluded in the remote enclosure with the MOI-7.
A
U
X
L I
A I
R
C
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M
P
A
T
C
o
m
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t a
b i
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c i
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s
C
Z
M
1 -
B
6
C I
P
B -
6
M
O
D
1 -
6
M
O
I
7 -
P
S
5 -
A
P
S
5 -
N
7
M
K
- B
/ 5
5 -
C
M
K
- B
/ 6
6 -
C
R
C
- C
/ 3
3 -
F
- /
/ C
3 -
F
C
S
e l i
t n
K
n
g i
t h
5
1
2
8
5 /
1
2
9
S
R
3 -
5
S
D
H
2 -
/ D
3 -
/ D
4 -
D
/
5 -
/ D
6 -
/ D
7 -
/ D
8 -
D
§
N
S
1 -
§
L
s i
e t
d
p
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8
6
4
8
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2
4
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P
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C I
E
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t s
u r
t c
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n
s
P
N /
3
1
5
0 -
9
5
3
5
5
7 -
P
N /
3
1
5
0 -
9
5
3
0
6
8 -
P
N /
3
1
5
0 -
9
0
8
3
0
7 -
P
N /
3
1
5
0 -
9
2
7
9
9
7 -
P
N /
3
1
5
0 -
9
2
3
6
7
8 -
P
N /
3
1
5
0 -
9
2
7
2
9
1 -
2
P
N /
3
1
5
0 -
4
8
7
2
7
3 -
P
N /
3
1
5
0 -
4
8
7
2
2
4 -
P
N /
3
1
5
0 -
4
8
6
6
5
5 -
P
N /
3
1
5
0 -
9
3
2
9
4
5 -
P
N /
3
1
5
0 -
8
7
6
9
1
8 -
P
N /
3
1
5
0 -
4
9
4
8
1
3 -
P
N /
3
1
5
0 -
8
5
4
0
9
3 -
E
t i d
o i
n
REFER TO WIRING SPECIFICATION FOR MXL, MXL-IQ
AND MXLV SYSTEMS, P/N 315-092772 REVISION 6 OR
HIGHER, FOR FURTHER INFORMATION.
1
2
3
CLASS B WIRING
+
4
_
5
CZM-1
6
TB3
T-TAPPING ALLOWED
CZM-1 Power, Class B Wiring
PSR-1
REFER TO WIRING SPECIFICATION FOR MXL, MXL-IQ
AND MXLV SYSTEMS, P/N 315-092772 REVISION 6 OR
1
HIGHER, FOR FURTHER INFORMATION.
POSITIVE AND NEGATIVE GROUND FAULT
2
DETECTED AT <30K OHMS FOR TB3, 1-6
+
3
+
4
_
5
_
6
DO NOT
USE
TB3
18-31 VDC
2A MAX
POWER LIMITED TO
NFPA 70 PER NEC 760
4 OHMS MAX PER
PAIR (TOTAL)
18 AWG MIN
PS-5A Power, Class A Wiring
PSR-1
REFER TO WIRING SPECIFICATION FOR MXL, MXL-IQ
AND MXLV SYSTEMS, P/N 315-092772 REVISION 6 OR
1
HIGHER, FOR FURTHER INFORMATION.
POSITIVE AND NEGATIVE GROUND FAULT
DETECTED AT <30K OHMS FOR TB3, 1-6
2
3
+
4
_
5
6
DO NOT
USE
TB3
18-31 VDC
2A MAX
POWER LIMITED TO
NFPA 70 PER NEC 760
4 OHMS MAX PER
PAIR (TOTAL)
18 AWG MIN
PS-5A Power, Class B Wiring
9
18-31 VDC
2A MAX
POWER LIMITED TO
NFPA 70 PER NEC 760
CZM-1
4 OHMS MAX PER PAIR (TOTAL)
18 AWG MIN
POSITIVE AND NEGATIVE
GROUND FAULT DETECTED
AT <30K OHMS FOR TB3, 1-6
Figure 8
DO NOT
USE
_
4
3
2
1
+
PS-5A
Figure 9
DO NOT
USE
_
4
3
2
1
+
PS-5A
Figure 10
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