16
FCPS-24S Series Instruction Manual —
P/N 51977:J2 7/11/2014
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-24S circuit board. This module allows the FCPS-24S6 or FCPS-24S8 to
support Style Z (Class A) Notification Appliance Circuits.
Figure 2.3 NAC Style Y (Class B)
4.7K
:
ELR
Horn Strobe
Horn Strobe
Horn Strobe
Alarm Polarity Shown
FCPS-24S Circuit Board
2
4
fscl
sb
.wmf
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-24S Circuit Board
