Output Circuits; Notification Appliance Circuits - Fire-Lite Alarms MS-4412B Instruction Manual

Output Circuits

Output Circuits

Notification Appliance Circuits

The control panel provides two Notification Appliance Circuits (Style Y). Each circuit is capable of 1.5
amps of current. Total current drawn from all four circuits cannot exceed 2.25 amps. NACs are supervised
and power-limited.
Note: Refer to the Device Compatibility Document for suitable devices.
For details on how jumper configurations affect panel functions see "Supervisory Configuration" on page
20.
• For DIP switch configuration, see "Setting Mode of Operation" on page 27.
• For non-silenceable service on Initiating Zone #1, see "Non-Silenceable Service" on page 32.
• Unused circuits must be connected with a dummy load as shown.
MS-4412B/MS-4424B Instruction Manual PN 15125:G1 10/22/02
Polarized
Bell
Polarized
Strobe
Polarized
Horn
Style Y (Class B)
TB3
Figure 8 Notification Appliance Circuits
24 Volt -
4.7K, 1/2-Watt ELR
PN 71252 (UL listed)
12 Volt -
2.2K, 1/2-Watt ELR
PN R-2.2K (UL listed)
2. Installation
19