LCD-160 Manual —
P/N 51850:D2 10/07/2016
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Appendix A: LCD-160 Power Requirements
An LCD-160 draws its power from the power supply and must be considered when calculating the
primary and secondary power supply requirements for the system. Each LCD-160 is accounted for
in the power calculations outlined in the respective installation manual. However, if the current
draw dedicated to all LCD-160s must be calculated as a separate figure, use the equations in
Table A.1.
Electrical Ratings
Input Voltage: 24 VDC (must be non-resettable).
Data Communications Port:
RDP interface (power-limited/Class 2).
Non-Fire Alarm Status A: Power LED is on; backlight is off
Number of LCD-160 modules [_____] X 0.075 A= [_________] amps
Non-Fire Alarm Status B: Power LED is on; backlight is also on
Number of LCD-160 modules
assumed to have points active
simultaneously [_____] X 0.300 A= [__________] amps
Total LCD-160 Standby Current = [__________] amps
Fire Alarm Status (All LEDs and pixels are assumed to be on)
Number of LCD-160 modules
assumed to be in alarm simultaneously [_____] X 0.325 A= [__________] amps
Total LCD-160 Fire-Alarm Current= [__________] amps
Table A.1 LCD-160 Current Draw
