Emergency operation
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Siemens Building Technologies 007831_a_en_--.doc
Fire & Security Products 03.2004
4 Emergency operation
An alarm, which occurs during system failure, is displayed at the control panel as a
”Collective alarm” (without location). The emergency operating circuit permanently
integrated in the system achieves this.
Reduced alarm messages in emergency operation mode
– Collective alarm at B3Q700 (visual and buzzer)
– Alarm horns are activated and can be silenced at B3Q700 control console
– Remote alarm is activated via contact at the E3G070
– Response indicator at detector flashes (except with collective detectors)
Emergency operation circuit at C-Bus level (external)
– Comprises the functions ”Collective alarm” and ”Silence alarm horns”
– Requires 3 additional wires between FC700A and FT700A
– The line ’Emergency operation circuit fire alarm’ is electrically monitored
– Function ’Monitoring’ must, if not used, be set to inactive (SWE700A)
– Emergency operation circuit between the individual stations is designed for spe-
cific systems
Emergency operation circuit at I-Bus level (internal)
– Comprises the functions ”Emergency alarm” and ”Silence alarm horns” at the
various I-Bus modules
– Integrated in the I-Bus flat cable, for this purpose 2 lines lead via all modules to
the FC700A (B3Q700)
C-Bus
FT FG
FC
E3M...
I-Bus
Emergency operation circuit external
(3 additional wires)
Emergency operation circuit internal
E3M...
FC FC
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