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Building Technologies
4 Planning
4.1 FC721 system limits and options
FC721 System limits
Detector line
Max. C-NET addresses 126 *(1 loop or 2 stubs)
Number of loops or stubs 1 loop or 2 stubs
Number of devices per loop Max. 126
Number of devices per stub line Max. 32
Supply
Power supply 70 W
Batteries (with 70 W power unit) Max. 2x 7 Ah
Battery extension (optional) Max. 2x 26 Ah
with optional power supply (150 W) and additional
empty housing (standard)
External DC 24 V supply ―
Operating unit Integrated
Inputs and outputs
RT alarm, relay 1
RT fault, relay 1
RT alarm monitored 1
RT fault monitored 1
Outputs for monitored, acoustic signal transmitter 1
Freely configurable inputs/outputs 4
Options
RS232/RS485 module Max. 1
Ext. Printer DL3750+ Max. 1
LED module; 24 red/green and yellow LEDs each Max. 1
EVAC-NL operating unit [NL] Max. 1
License key S1 Max. 1
Kaba or Nordic key switch Max. 1
* Note system limits!
The description of system components and options does not form part of this
technical manual.