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<br />m! SILENT <br />KNIGHT <br /> <br /> <br />Q!) <br /> <br />SK-2224 Battery Calculation Worksheet <br />(all currents stated in mAl <br />12/06/2001 <br /> <br />Instructions: fill in shaded data fields <br /> <br />Device <br /> <br />Description <br /> <br /> <br />Total Device <br />Standby mA <br /> <br />Total Device <br />Alarm mA <br /> <br />SK-2224 Fire Alarm Control Panel 1 50 250 50 250 <br />SK-2884 Serial Driver Board >: 10 10 0 0 <br />SK-2865 LED Annunciator 35 75 0 0 <br />SK-2880 Input/Output Module 35 660 0 0 <br />SK-2104 Digital Alarm Communicator Transmitter ..3.......... 33 70 0 0 <br />Total SK-2224 System Current 50 250 <br /> <br /> <br />0.475 <br />o <br />o <br />o <br />o <br />o <br />o <br />0.475 <br /> <br />0.969 <br />o <br />o <br />o <br />o <br />o <br />o <br />0.969 <br /> <br /> N/A N/A 0 <br /> N/A N/A 0 <br /> N/A N/A 0 <br /> N/A N/A 0 <br /> N/A N/A 0 <br /> N/A N/A 0 <br />Other N/A N/A 0 <br />Notification Appliance Totals N/A 0 <br /> <br />Summary Section <br />Standby Hrs. Required 'Ii ';':""".>i..: <br />Alarm Sounding Minutes .>i... ::.~.i;'iF <br />Total System Standby mA 50.475 <br />Total Svstem Alarm mA 250.969 <br />Total System Standby A1H 3.03 <br />Total System Alarm A1H 0.02 <br />Min, A1H Battery Required 3.05 <br />Recom mended A1H Battery"" I 3,66 I <br /> <br />4AH <br /> <br />. If you are using door holders, you do not need to consider door holder current for alarm current or loss of AC, because power is removed during that time. <br /> <br /> <br />However, during normal operation, door holders draw current and must be included in the total standby current that can be drawn from the panel. <br /> <br />.. Use ~ size battery with capacity greater than required. <br />