Style Y (Class B) Input/Output Nac Wiring - Faraday RSE-300 Owner's Manual

2.5.3

Style Y (Class B) Input/Output NAC Wiring

Figure 2-6 shows how to wire for Style Y (Class B) input and output supervision. Use in/out wiring
methods for proper supervision. Compatible notification appliances are listed in Section 7.
Style Y (Class B) Output Notification Circuits
Figure 2-6 shows four, 1.5 amp devices wired as Style Y (Class B) circuits.
Place a 24K ohm EOL resistor (provided) at the end of each loop to enable notification output supervision
when using all output as Style Y (Class B) notification circuits. The 24K EOLs must be wired to the
terminals whether or not you are using all output terminals.
Style Y (Class B) Supervised Input Circuits
Figure 2-6 shows Style Y (Class B) supervised wiring from a fire alarm control unit to the 15073 board.
Use an EOL resistor as shown to enable notification input supervision.
18-30VDC / VFW
6mA MAX.
SUPERVISED BY
FIRE ALARM CONTROL
UNIT, POWER LIMITED
EOL
(SEE CONTROL UNIT
INSTALLATION
INSTRUCTIONS)
Figure 2-6. Style Y (Class B) Supervised Input/Output Connections
447179 Issue 1 Rev. A
Trouble
Input 1 Input 2
Relay
2 3 4 5
1 6 7
Class B notification
output from fire panel
-
+
firealarmresources.com
NAC NAC NAC
8 9 12 14
10 11 13 15
Notification Appliance Circuit
Style Y, Class B
Supervised, Power Limited
+ -
See Owner's Manual for
Compatible Devices
Polarity shown in
-
+
activated condition.
NAC RATINGS:
ALARM VOLTAGE: 24VDC NOMINAL
MAX. ALARM CURRENT: 3A
24K 1/2W
MAX. RIPPLE: 0.1 VAC
FARADAY
MAX. WIRE VOLTAGE DROP: 1.5VDC
P/N 10807
MAX. STANDBY CURRENT: 1.0mA
15073 OWNER'S MANUAL
NAC AUX
18 19
17
16
+ -
11