Fire-Lite FCPS Series Field Charger/Power Supply - Manual (Page 16)

16 FCPS-24FS Series Instruction Manual — P/N 51883-L8:J1 8/30/13
Installation NAC Circuit Wiring
2.2 NAC Circuit Wiring
2.2.1 Style Y (Class B)
The standard configuration for NACs is Style Y (Class B) as shown in Figure 2.3.
2.2.2 ZNAC-4 Class A Option Module
The ZNAC-4 is an optional Class A conversion module which mounts to connector J3 on the upper
right side of the FCPS-24FS circuit board. This module allows the FCPS-24FS6 or FCPS-24FS8 to
support Style Z (Class A) Notification Appliance Circuits.
Figure 2.3 NAC Style Y (Class B)
4.7K Ω ELR
Horn Strobe
Horn Strobe
Horn Strobe
Alarm Polarity Shown
FCPS-24FS Circuit Board
24
fscl
sb
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Figure 2.4 Style Z (Class A) NACs using ZNAC-4 Option Module
ZNAC-4 Option Module
J3
Horn Strobes
ZNAC-4
Alarm Polarity
Shown
24
fsclsa.wmf FCPS-24FS Circuit Board