Perle Systems Perle IOLAN DS1 - Manual (Page 139)

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Channels
Auto Clear Mode When enabled, automatically clears the alarm when the trigger condition
changes; for example, if the
Trigger is Inactive and the alarm is triggered, once
the input becomes active again, the alarm will automatically be cleared
Default: Enabled
Manual Clear
Mode When enabled, a triggered alarm must be manually cleared.
Default: Disabled
Syslog When enabled, sends a message to syslog when an alarm is triggered or
cleared. The syslog entry includes the severity level and the value that caused
the alarm to trigger or clear. The syslog message is associated with
Level
Critical .
Default: Disabled
SNMP When enabled, sends an SNMP trap when an alarm is triggered or cleared. The
trap consists of the severity level and whether the alarm was triggered or
cleared.
Default: Disabled