Auxiliary Fire Alarm System
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AFP-300/AFP-400 Installation PN 50253:C1 05/22/97 5-3
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Figure 5-2 shows typical wiring for an Auxiliary Fire Alarm System (Municipal Box
connected to a 4XTM). Note the following:
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1. The Local Energy Municipal Box circuit is nonpower-limited. Maintain at least a
0.25 inch space between the Municipal Box Circuit wiring and all power-limited
circuit wiring.
2. Municipal Box wiring can leave the building.
3. Maximum Municipal Box circuit resistance allowed for wiring from the control
panel to the municipal box is 3 ohms. Electrical values for the Auxiliary Fire
Alarm System are listed in Table 5-2:
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Figure 5-2 shows a typical wiring diagram of 4XTM connected to a Municipal Box:
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Item Value
Supervisory current 5.0 mA
Trip current 0.35 A (subtracted from notification appliance power)
Coil voltage 3.65 VDC
Coil resistance 14.6 ohms
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