APC AP7900 manual Purpose and benefits of outlet groups

Switched Rack PDU

USER’S GUIDE

®

Purpose and benefits of outlet groups

By using groups of synchronized outlets on Switched Rack PDUs, you can ensure that outlets turn on, turn off, and reboot in a synchronized manner. Synchronizing control group actions through outlet groups provides the following benefits.

•Synchronized shutdown and startup of the power supplies of dual- corded servers avoids erroneous reporting of power supply failures during a planned system shutdown or reboot.

•Synchronizing outlets by using outlet groups provides more precise shutdown and restart timing than relying on the delay periods of individual outlets.

•A global outlet is visible to the user interfaces of the Switched Rack PDUs to which it is linked.

Under normal conditions all outlets in outlet groups affected by a control action will perform that action within a one-second interval.

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