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Cisco Catalyst 4900M Switch Installation Guide
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Chapter 2 Site Planning
Safety Overview
Warning
Only trained and qualif ied pe rson nel sho uld be allowe d to i nstall, rep lace, or servic e this equipment.
Statement 1030
Warning
This equipment must b e groun ded. Nev er defea t the ground c onductor or operate the equipment i n the
absence of a suitably installed ground conductor. Contact the appropriate electrical inspection
authority or an electrician if you are uncertain that suitable grounding is available.
Statement 1024
Note To completely de-energize the system, unplug the power cord.
• Always use caution when lifting heavy equipment.
• Always turn all power supplies off by unplugging all power cords before installing or removing a
chassis.
• Keep the chassis area clear and free of dust during and after installation.
• Keep tools and chassis components off of the floor and away from foot traffic.
• Avoid wearing jewelry (including rings and chains) or other items that could get caught in the
chassis. Avoid wearing any loose clothing, or securely fasten items such as ties, s carves, or sleeves.
• Install the system in compliance with the following local and national electrical codes.
Working Safely with Electricity
Follow these basic guidelines when working with any electrical equipment:
• Locate the emergency power-off switch for the room in which you are working before beginning
installation.
• Disconnect all power and external cables before installing or removing a chassis.
• Do not work alone when potentially hazardous conditions exist.
• Never assume that power has been disconnected from a circuit; always check.
• Do not perform any action that creates a potential hazard to people or makes the equipment unsafe.
• Examine your work area carefully for possible hazards such as moist floors, ungrounded power
extension cables, and missing safety grounds.
