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P83963 E 

Sheet 2 of 5  

WARNING:  CHECK THE MINIMUM AND MAXIMUM OUTPUT OF THE POWER SUPPLY AND STANDBY 

BATTERY AND SUBTRACT THE VOLTAGE DROP FROM THE CIRCUIT WIRING RESISTANCE TO DETERMINE 
THE APPLIED VOLTAGE TO THE STROBES. 
 

WARNING:  MAKE SURE THAT THE CURRENT REQUIRED BY ALL APPLIANCES THAT ARE CONNECTED TO 

THE SYSTEM’S PRIMARY AND SECONDARY POWER SOURCES, NAC CIRCUITS, SM, DSM SYNC MODULES OR 
WHEELOCK’S POWER SUPPLIES DO NOT EXCEED THE POWER SOURCES’ RATED CAPACITY OR THE 
CURRENT RATINGS OF ANY FUSES ON THE CIRCUITS TO WHICH THESE APPLIANCES ARE WIRED.  
OVERLOADING POWER SOURCES OR EXCEEDING FUSE RATINGS COULD RESULT IN LOSS OF POWER AND 
FAILURE TO ALERT OCCUPANTS DURING AN EMERGENCY, WHICH COULD RESULT IN PROPERTY DAMAGE 
AND SERIOUS INJURY OR DEATH TO YOU AND/OR OTHERS. 

 
When calculating the total current:  use Table 1 to determine the highest value of “Rated Average Current” for an individual horn 
(across the expected operating voltage range of the device); then multiply this value by the total number of devices; be sure to add the 
current for any other devices powered by the same source and include any required safety factors. 
 

WARNING:  MAKE SURE THAT ALL FUSES USED ON SIGNALING CIRCUITS ARE RATED TO HANDLE THE 

MAXIMUM INRUSH OR PEAK CURRENT FROM ALL APPLIANCES ON THOSE CIRCUITS.  FAILURE TO DO THIS 
MAY RESULT IN LOSS OF POWER TO THE SIGNALING CIRCUIT AND THE FAILURE OF ALL APPLIANCES ON 
THAT CIRCUIT TO OPERATE, WHICH COULD RESULT IN PROPERTY DAMAGE AND SERIOUS INJURY OR 
DEATH TO YOU AND/OR OTHERS. 

 
 
 

WIRING INFORMATION: 
 
 

Figure 1. 

Figure 2. 

 

APPLIANCE

-

+

-

+

TO NEXT APPLIANCE

OR END OF LINE

RESISTOR (EOLR)

FROM PRECEDING

APPLIANCE OR FIRE ALARM

CONTROL PANEL (FACP)

 

 

 
 
1)  Appliances have in-out wiring terminals that accept two #12 to #18 American Wire Gauge (AWG) wires at each screw terminal.  

Strip leads 3/8 inches and connect to screw terminals. 

 
2)  Break all in-out wire runs on supervised circuits to assure integrity of circuit supervision shown in Figure 1.  The polarity shown 

in the wiring diagrams is for the operation of the appliances.  The polarity is reversed by the FACP during supervision. 

 
 
 

TEMPORAL (CODE 3) / NON-TEMPORAL (CONTINUOUS) JUMPER SETTINGS: 

 
 

Table 2:  Jumper Settings 

FACP NAC 

MIZ-TC 

Result 

Continuous Continuous Continuous 
Continuous Temporal  Code 

Code 3 

Continuous 

Code 3 

Continuous with SM/DSM * 

Temporal 

Synchronized Code 3 

 

*  Requires use of SM, DSM, or Wheelock’s Power Supplies in Wheelock Sync mode. 

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