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Audible device
output
14
Generally the relay output for control of an
audible device operates if one of the 16 alarm
channels is activated. Every channel can also be
separately programmed to deliver an audible
ringback when the alarm channel returns to
normal state. If an alarm channel has been
programmed for a sequence providing a field
contact following visual indication only, no
audible alarm will be generated, please refer to
"Standardized operational sequences" on page 8.
Reset of audible
output
(Silence)
Channell 1
Channel 2
Channel 3
Channel 16
Fig. 12. Principle diagram for the audible alarm.
The audible device can be silenced by means of
the acknowledge/reset push-button or by means
of an external control signal applied to the remote
silence control input (17) of the annunciator
unit.
An incoming alarm signal, for which only the
audible alarm has been silenced but the alarm
signal has not been acknowledged nor reset, will
not produce a new audible alarm if the field
contact starts "pumping".
Audible
alarm
memory
Audible device
relay output
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