Structure and function
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Siemens Building Technologies 007995_a_en_--.doc
Fire & Security Products 04.2004
4.2.3 Operating modes
The fire detection control unit has the following mode of operations:
'Unmanned'
This operating mode must be set when no instructed staff is present. In case of
alarm or fault, remote transmission (e.g. to the fire brigade) is activated immedi-
ately.
'Manned'
In this operating mode instructed staff is present, who is involved in the process
in case of alarm or fault. In this operating mode, an alarm or fault signal acti-
vates the remote transmission (e.g. to the fire brigade) only after the expiry of a
defined period of time.
Manual switchover between 'Manned' and 'Unmanned'
The switchover between the operating modes 'Manned' and 'Unmanned' may al-
ways be performed manually.
Automatic switchover between 'Manned' and 'Unmanned'
With fire detection system with an indicator module, automatic switchover is possi-
ble. At maximum two switchover times may be defined.
Automatic switchover between summer time and winter time
With fire detection systems with an indicator module, switching over between
summer time and winter time can be effected automatically.
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