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Lookup service, Alarm debouncing, Lookup service alarm debouncing – Grass Valley Kaleido-X v.7.80 User Manual

Page 170

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162

Configuring Alarms

Lookup Service

and control purposes. See

Managing Alarm Providers

on page 175.

Lookup Service

Grass Valley’s monitoring and control products implement a lookup service for discovery
and information sharing over a network. A program on one device can use a lookup service
to obtain information from remote applications or devices, including alarm-related
information from a device’s GSM. By default, every multiviewer has a lookup service and can
therefore be considered a lookup server. For example, before you can use an RCP-200
control panel to operate your monitor wall, the multiviewer must be specified as a lookup
server in the RCP-200’s configuration (see

Specifying lookup servers for the RCP-200

on

page 483).

Alarm Debouncing

Alarm debouncing allows the filtering of false alarms. Two parameters can be calibrated:
the time required for an alarm event to be present before the system considers it to be valid
(to avoid false triggering of alarms), and the time required for an alarm state to be normal
before the system actually clears the alarm (to avoid false releasing of alarms).

An alarm is triggered when a probe is in a continuous error state for the number of seconds
specified in the Set duration debouncing parameter. By default, the alarm status will revert
to normal as soon as the probe returns a normal state. To delay the releasing of an alarm,
you can change its Clear duration parameter. The default debouncing parameters are as
follows:

IMPORTANT

iControl application server requirement
In the case of an iControl system involving multiple application
servers, there will typically be only one or two of the servers with a
lookup service enabled. To qualify as an external alarm provider, an
iControl application server must have its lookup service enabled (i.e.,
it must be a lookup server). Refer to the iControl User Guide for more
information.

Attribute

Default value

Range

Description

Set duration

15 seconds

0 s

300 s This is the time interval to wait before triggering

an alarm once a probe has been in a continuous
error state.

Clear duration 0 seconds

0 s

90 s

Once a probe has returned to a normal state (the
alarm condition is no longer detected), this is the
time interval to wait before resetting the alarm.

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