52 MS-9200UDLS/E/C Manual — P/N 52750:F 7/26/2010
Installation Notification Appliance Circuits
2.5.1 Style Y (Class B) NAC Wiring
2.5.2 Style Z (Class A) NAC Wiring with ZNAC-92 Converter
B
+
B
-
+
+
+
+
+
+
+
+
+
B
+
B
-
B
+
B
-
33
2
2
44
Figure 2.8 NAC Style Y (Class B) Wiring
4 Style Y (Class B) Notification Appliance Circuits, supervised and power-limited - 4.7 k, ½ watt P/N:71252 UL listed
Polarized Bells
Polarized Bells
Polarized HornsPolarized Horns
Polarized Strobes
Notification Appliance Circuit
polarity shown in alarm state
Dummy Load all unused circuit
TB4
9
2
0
0
n
a
c
y
.
c
d
r
Polarized Strobes
circuit number
NAC 1
NAC 3
NAC 4
NAC 2
TB3
4 Style Z (Class A) Notification Appliance Circuits, supervised and power-limited
Polarized Bells
Polarized HornPolarized Horn
Notification Appliance Circuit
polarity shown in alarm state
Polarized Bell
Polarized Strobe Polarized Strobe
Figure 2.9 NAC Style Z (Class A) Wiring
NAC 1
NAC 2
TB3 TB4
NAC 3
NAC 4
Dummy Load all unused circuits
circuit number
Polarized Bell
Polarized Horns
Polarized Strobes
circuit number
TB1 TB2
9
2
0
0
c
n
a
c
z
.
w
m
f
ZNAC-92