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41UPS Network Management Card 2 User’s Guide
Load-shedding options. Settings vary by UPS model. Use the load-shedding options to define how
the UPS will respond to alarms. The UPS provides automatic, sequenced, load-shedding when a problem
occurs with input voltage or battery capacity and provides automatic sequenced start-up of outlet groups
when the problem is resolved.
Outlet group events and traps
A change in the state of an outlet group generates the event UPS: Outlet Group turned on with a
severity of Informational, or UPS: Outlet Group turned off with a severity of Warning. The format of
event messages is “UPS: Outlet Group group_number, group_name, action due to reason”. For example:
UPS: Outlet Group 1, Web Server, turned on due to user control.
UPS: Outlet Group 3, Printer, turned off due to line fail.
By default, the event generates an event log entry, e-mail, and a Syslog message.
If you configure trap receivers for the events, trap 298 is generated when an outlet group turns on, and
trap 299 is generated when an outlet group turns off. The event message is the trap argument. The default
severity level is the same as for the event.
Setting Description
Settings that turn off
this outlet group
• A power failure is longer than the number of seconds you specify.
• The remaining UPS runtime is less than the number of seconds you specify.
• The UPS is overloaded (the power demand of the devices connected to the UPS
exceeds the amount of power the UPS can provide).
• Input power fails and the UPS battery capacity drops below the percentage you
specify.
• Output drawn from the UPS exceeds the percentage of UPS output load you specify.
• Skip outlet off delays. (Turn the outlet group off immediately, without waiting the
number of seconds configured as Power Off Delay. By default, this option is
disabled.)
• Stay off after power returns. (Remain off when AC utility power returns. By default,
this option is disabled, and the UPS waits the number of seconds configured as Power
On Delay, then turns on the outlet groups.)
Settings that turn on
this outlet group
• The outlet group has waited the number of seconds you specify.
• The battery recharges to the percentage of full capacity you specify.