UTC Fire and Security FenwalNET 8000-ML Installation, Operation And Maintenance Manual page 84

Installation
Both NAC circuits are supervised, power limited, and are compatible with conventional, UL-Listed,
24-Vdc notification appliances such as:
• MT Series Multi-Tone Horns and Horn/Strobes
• NS Series Horn/Strobes
• NH Series Horns
• RSS(P) Series Strobes
• Exceder Series
• Commander Series
NOTE 1: These strobes can be programmed for synchronization.
NOTE 2: Commander Series strobes require the manufacturer's synch module to synchronize
Horn/strobe combination devices utilizing the appropriate synch protocol have the option to use
silenceable horns and non-silenceable strobes. Refer to the horn/strobe manufacturer's installation
sheet for details.
All strobes are designed to flash with continuous applied voltage. Strobe notification
appliances cannot be used on pulsing signaling (NAC or R-NAC) circuits. You must use a
separate notification circuit if the application requires a pulsing signaling circuit for
WARNING
horns. Failure to adhere to this warning may cause system malfunction.
Use Figure 2-31 to estimate the maximum length of wire as a function of notification-appliance
current for NACs.
12000
11500
11000
10500
10000
9500
9000
8500
8000
7500
7000
6500
6000
5500
5000
4500
4000
3500
3000
2500
2000
1500
1000
500
0
0.0
February 2011
(See Note 1)
(See Note 1)
(See Note 1)
(See Note 2)
devices.
0.1 0.2 0.3 0.4 0.5
Figure 2-31. Wiring Length vs. Notification-Appliance Current
0.6 0.7 0.8 0.9
NAC Current (A)
2-36
1 1.1 1.2 1.3 1.4
P/N 06-237041-001
1.5