14
VAIE 5500
EN
5. OPERATIONAL CONDITIONS AND TERMINOLOGY
Following is a list of how the operating conditions of the system are signalled and of the de
fi
nitions used on the subsequent pages
of the manual, completed by indications of a general nature.
5.1 SIGNALLING OF OPERATING CONDITIONS
The
VAIE
is designed to signal the different operating conditions as de
fi
ned below:
Idle state
(
ALARM, FAULT and SYS LEDs off
)
Normal operating condition, with no current faults or emergencies.
Alarm Status
(
ALARM LED on
)
Operating condition signalling the presence of at least one alarm signal, either pre-recorded or live, in at least one output zone.
Faulty status
(
FAULT LED on
)
Operating condition signalling the presence of at least one fault detected by the internal diagnostic system, with the relevant LED
turning on.
System failure
(
SYS LED on
)
Operating condition signalling that the system has crashed due to temporary or permanent CPU malfunctioning, detected by the
watchdog device.
Automatic Emergency
(
Display showing ‘AUTOMATIC EMERGENCY’ with active zones
)
Sequence of operations performed by an external peripheral unit connected to the control inputs that, depending on how these
are programmed, activates the Alarm Status or resets the alarms.
Manual Emergency
(
LED of the EMERGENCY button steady ON or fl ashing
)
Procedure of action on the system manual controls by an authorised operator, in order to activate emergency sources. Operations
in the Manual Emergency mode have priority over those activated in the Automatic Emergency mode.
6. DEFINITIONS
BGM source (BackGroundMusic)
One of the audio sources that can occupy the “Music” ampli
fi
cation channel.
PA source (Public Address)
One of the audio sources that can occupy the “Voice” ampli
fi
cation channel for service announcements.
Emergency Source
One of the audio sources that can occupy the “Voice” and/or “Music” channels for voice emergency announcements (pre-recorded
messages announcing an Alert and/or Evacuation, live messages from the local microphone, a call from a remote emergency
microphone station). Activation of an Emergency Source generates the operational condition of “State of Alarm”.
Priority
Occupation of the output zones by an audio signal or a reset order is governed hierarchically by the priority level assigned to each
active source. The current activation of the area can be stopped only by another with a higher priority.
