Installation
MS-5UD/MS-10UD Series PN 52626:B 8/01/2008 29
2.4 Output Circuits
2.4.1 Notification Appliance Circuits
Total current drawn from the four Style Y (Class B) Notification Appliance Circuits as well as other
DC power outputs cannot exceed 3.0 amps for the MS-5UD-3(E), MS-10UD-3(E) [2.5 amp
maximum per NAC] powered by the FLPS-3 power supply or 7.0 amps for the MS-5UD-7(C/E),
MS-10UD-7(C/E) [3.0 amps maximum per NAC] powered by the FLPS-7 power supply (refer to
"Power Supply Calculations" on page 133). Each circuit is supervised, power-limited and provides
special application power. Refer to the Fire•Lite Device Compatibility Document for a listing of
compatible notification appliances.
The NACs can be converted to Style Z (Class A) by installing the optional Class A Converter
module. Refer to "CAC-5X Class A Converter Module" on page 34.
Figure 2.7 NAC Connections
Class B Notification Appliance Circuits (supervised and power-limited)
4.7 K
Ω, ½ watt resistor P/N:71252
Dummy load any unused circuits (P/N: 71245)
Polarized Bell
Polarized Strobe
Polarized Horn
Polarized Horn
Polarized Horn-Strobe
Polarized Bell
Notification Appliance Circuit
polarity shown in alarm condition
ms-10UDnac.cdr
+ - + -
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