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viii HP Uninterruptible Power System R1500 XR Models User Guide
Rack Stability
WARNING: To reduce the risk of personal injury or damage to the equipment, be sure
that:
• The leveling feet are extended to the floor.
• The full weight of the rack rests on the leveling jacks.
• The stabilizing feet are attached to the rack in single-rack installations.
• The racks are coupled together in multiple-rack installations.
• Only one component is extended at a time. A rack may become unstable if more
than one component is extended for any reason.
Symbols in Text
These symbols may be found in the text of this guide. They have the following meanings.
WARNING: Text set off in this manner indicates that failure to follow directions in the
warning could result in bodily harm or loss of life.
CAUTION: Text set off in this manner indicates that failure to follow directions could result in
damage to equipment or loss of information.
IMPORTANT: Text set off in this manner presents essential information to explain a concept or
complete a task.
NOTE: Text set off in this manner presents additional information to emphasize or supplement
important points of the main text.
Related Documents
For additional information on the topics covered in this guide, refer to the following
documents:
• HP Uninterruptible Power System R1500 XR Models Installation Instructions
• HP UPS R1500 XR Models Extended Runtime Module Installation Instructions
• HP UPS XR Products Power Cord and Options Reference Guide
• Industry Standard Terminology Glossary
These documents are located on the Power Products Documentation CD or at
www.hp.com.