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NOVO Technical Handbook - NE41 15013-02 v2.0
4.2.6 Mains failure
If the unit loses mains power (AC failure) and is powered from the backup
accumulator it can be configured to send a
Mains Failure alarm
and indicate the
failure visually and/or acoustically, see chapter "3 Indications".
For Mains failure, a
detection delay
can be configured. The unit will delay any
indication of the failure for the configured detection delay.
For Mains failure, an
alarm delay
can be configured. The unit will delay transmitting
an alarm for the configured alarm delay. The unit will indicate the failure as
configured.
For Mains failure the unit will add a random time of 5 – 60 minutes to the
alarm
delay
. The purpose of this randomized delay is to prevent many units in the same
area from transmitting Mains Failure alarm simultaneously.
4.2.7 Mains return
If NOVO has reported Mains Failure it can be configured to report
Mains Return
when
AC is returned. A Mains OK alarm will be sent after a random time between 5 – 30
minutes after detection of AC return.
Any visual/acoustical indications of Mains failure will stop as soon as the unit
detects return of AC.
4.2.8 PSTN/MOBILE/IP surveillance
Depending on the model NOVO can report status of PSTN/MOBILE/IP connectivity.
For the purpose of this section PSTN/MOBILE/IP will be referred to as Network. Note
that PSTN, Mobile and IP connections are monitored individually. The surveillance,
indications and reporting are configured individually.
If the unit detects loss of Network it can be configured to send a
Network Failure
alarm
and indicate the failure visually and/or acoustically, see chapter "3
Indications".
For Network failure, a
detection delay
can be configured. The unit will delay any
indication of the failure for the configured detection delay.
For Network failure, an
alarm delay
can be configured. The unit will delay
transmitting an alarm for the configured alarm delay. The unit will indicate the failure
as configured.
NOVO can be configured to send a
Network OK alarm
when it detects that Network
has been restored. Any indications for Network failure are stopped as soon as NOVO
detects that Network has been restored.
