NAC Circuit Wiring Installation
FCPS-24S PN 51977:C1 08/06/03 15
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.
TB4
JP3
J3
TB5
TB2
JP1
JP2
OUT4
-NAC4+
OUT3
-NAC3+
OUT2
-N
C2+
OUT1
-N
C1+
U
-
IN2-
IN2+
OUT1-
OUT1+
IN1-
IN1+
SYNC IN -
SYNC IN +
U
+
NO NC
U
TBL
COM
1 2 3 4 5 6 7 8 9 10
8
7
6
5
4
3
2
1
TB2
3
2
1
+
-
+
-
+
-
+
-
Figure 2.3 NAC Style Y (Class B)
4.7KΩ ELR
Horn Strobe
Horn Strobe
Horn Strobe
Alarm Polarity Shown
FCPS-24S Circuit Board
24fsclsb.cdr
TB4
JP3
J3
TB5
TB2
JP1
JP2
OUT 4
-N
C4+
OUT 3
-N
C3+
OUT2
-N
C2+
OUT1
-N
C1+
U
-
IN2-
IN2+
OUT1-
OUT1+
IN1-
IN1+
S
NC IN -
S
NC IN +
U
+
NO NC
U
TBL
COM
1 2 3 4 5 6 7 8 9 10
8
7
6
5
4
3
2
1
3
2
1
OUT4
-N
C4+
8
7
TB2
+
+
-
-
+
-
+
-
+
-
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
FCPS-24S Circuit Board
24fsclsa.cdr
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