APC AP7900 Manual Do Utilizador

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®
USER’S GUIDE
Switched Rack PDU
33
Device and Outlet Management Menus
How to Configure and Control Outlet Groups
Outlet group terminology
An outlet group consists of outlets that are logically linked together on the 
same Switched Rack PDU. Outlets that are in an outlet group turn on, turn 
off, and reboot in a synchronized manner, i.e., within a one-second interval 
under normal conditions:
• A local outlet group consists of two or more outlets on a Switched Rack 
PDU. Only the outlets in that group are synchronized.
• A global outlet group consists of one or more outlets on a Switched Rack 
PDU. One outlet is configured as a global outlet, which logically links the 
outlet group to outlet groups on up to three other Switched Rack PDUs. 
All outlets in the linked global outlet groups are synchronized.
– For global outlet groups, the initiator outlet group is the group that 
issued the action
– For global outlet groups, a follower outlet group is any other outlet 
group that is synchronized with the initiator outlet group.
When you apply an outlet control action to outlets that are members of an 
outlet group, the outlets are synchronized as follows:
• For a global outlet group, use the delay periods and reboot duration 
configured for the global outlet of the initiator outlet group.
• For a local outlet group, the outlets use the delay periods and reboot 
duration of the lowest-numbered outlet in the group.