Installation
Notification Appliance Circuit
polarity shown in alarm state
30
2.4.3 Style Z (Class A) NAC Wiring
2 Style Z (Class A) Notification Appliance Circuits,
supervised and power-limited
Polarized Bell
+
Polarized Strobe
+
+
Polarized Horn
B
A
A
NAC 1
-
+
+
Figure 2.8 NAC Style Z (Class A) Wiring
Polarized Bell
+
Polarized Strobe
+
Polarized Horn
+
B
B
A
A
B
NAC 2
-
-
-
+
+
Notification Appliance Circuits
MS-9600 PN 51335:E1 2/14/08