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WIRING
Refer to Figure 4.
All wiring must comply with national and local codes.
Terminate all unused outputs with an EOL resistor.
Figure 4
ZCT-8B Telephone Zone Wiring Diagram
3
C
o
m
p
t a
b i
e l
T
e
e l
p
h
o
n
F
T
3 -
0
1
S
r e
e i
s
W
a
d r
e
F
T
3 -
0
2
S
r e
e i
s
W
a
d r
e
F
J
3 -
0
3
J
a
k c
F
J
3 -
0
4
J
a
k c
T /
r e
m
n i
l a
ALL ZONES SUPERVISED, POWER LIMITED
All Wiring must comply with National and Local Codes
Maximum Loop Resistance: 10 ohnms
Minimum Wire Size:
18 AWG
Maximum Wire Size: 14 AWG
Supervised Telephone Zone Connections
Supervised: 9 VDC, 9mA max
Activated:
12.5 VDC, 300mA max
Connect shield to negative zone terminal
NOTES
1. Refer to Wiring Specification for MXL, MXL-IQ
and MXLV Systems, P/N 315-092772 revision 6
or higher, for additional wiring information.
2. Short to Earth Ground on Terminals 1-16 will
cause ground fault.
e
U
i n
s t
n
s '
t S
t a
o i
n
n
s '
t S
t a
o i
n
B
o l
k c
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