Mircom FleX-Net FX-2003-12NDS Installation And Operation Manual page 128

Appendix B: Power Supply and Battery Calculations
Legend: * Assuming three initiating circuits in alarm.
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Using the 2W-B or C2W-BA 2-wire smoke detector. See LT-1023 Compatibility List for other compatible smoke
detectors.
To Calculate Chassis and Battery Size:
Add all the alarm currents in column (B), and use this value to determine main chassis selection and the battery
capacity requirement.
Total Current Requirement: ALARM (total from column B)______ Amps.
Main Chassis Selection:
Select FX-2003-12NDS, FX-2003-12NXTDS, FX-2017-12NDS or FX-2009-12NDS if the total of column B is less
than 12 Amps.
Use the total from column (A) as the standby current required. Multiple this value by 24 hours or 60 hours
depending on AHJ. Add this total to the total of column (B) multiplied by the time in hours to sustain alarm.
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Use 0.084 for five minutes of alarm or 0.5 for thirty minutes of alarm as a multiplier figure.
Battery Capacity Requirement:
([STANDBY (A) ______ ] X [(24 or 60 Hours) ___ ]) + ([ALARM (B) ______ ] X [
Battery Selection:
Batteries: BAT-12V18A (18AH) will fit in the BBX-1024DS
BAT-12V26A (26AH) will fit in the BBX-1072ADS/ARDS, BB-5008, or BB-5014
BAT-12V42A (42AH) will fit in the BC-160(R) battery cabinet
RAXN-LCD/ RAXN-LCDG:
The RAXN-LCD Remote Shared Display is a remote annunciator that provides the same functions as the main
display on the fire alarm control panel, less 16 zone LEDs. The RAXN-LCDG is similar to the RAXN-LCD except its
display is a graphical LCD. It is equipped with expanded memory of more than 18,000 system points, large 4 line x
20 character backlit alphanumeric LCD display (or for the RAXN-LCDG a graphical display) which uses a simple
menu system complete with a directional key pad and switches for Enter, Menu, Cancel and Info. For more
information see Mircom documents LT-895 and LT-6033.
Models:
• RAXN-LCD or RAXN-LCDG Main Annunciator Chassis with Common Indicators and Controls.
• RAX-1048TZDS: Adder Annunciator Chassis with 48 Circuit Capacity.
• IPS-4848DS: Programmable Input Switches module with 96 display points and 48 buttons.
• IPS-2424DS: Programmable Input Switches module with 48 display points and 24 buttons.
Enclosures for RAXN- LCD and RAXN- LCDG:
• BB-1001D(R/S) With capacity for one Annunciator Chassis.
• BB-1002D(R/S) With capacity for two Annunciator Chassis.
• BB-1003D(R/S) With capacity for three Annunciator Chassis.
• BB-1008D(R/S) With capacity for eight Annunciator Chassis.
• BB-1012D(R/S) With capacity for twelve Annunciator Chassis.
• BB-1001WP(R)A rated for outdoor environment, wet location with capacity for one Annunciator Chassis
• BB-1002WP(R)A rated for outdoor environment, wet location with capacity for two Annunciator Chassis.
Notes:
• Material:18 G.A. cold roll steel (CRS)
• Finish: Backbox painted black, white painted door (standard), suffix "R" for red painted door or suffix "S"
for stainless steel finish.
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Multiply (total from column C) by 1.25 to derate battery.
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Alarm in Hr.] ______) = (C) ______AH