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6 Loading
Calculations
6.1 Panel Loading
The total AX-CTL base card load must not exceed the rating of the AX-CTL power supply. The AX-CTL power
supply can deliver 5A total load maximum (battery charging is disabled during alarm).
When the optional AX-PSU expansion power supply is used to supplement the AX-CTL base card power supply
(AX-CTL-2PCB two loop and four only) an additional 4A of load current for NAC #3 and NAC #4 is available.
Note: The AX-CTL-1PCB one loop base card cannot support the optional AX-PSU expansion power supply
module.
The AX-CTL base card loading includes the AX-CTL (195mA for a one or two SLC loop system and 260mA for a
four SLC loop system), any power required for additional option modules and all external power required for the
SLC, NAC and AUX circuits.
Note: The AX-DSP alphanumeric graphic display backlight is turned off during AC power failure (after 60
seconds). It turns on in Alarm or if a panel button is activated.
