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Cisco MGX 8850 Multiservice Switch Installation and Configuration
Release 1.1.31, Part Number 78-11223-03 Rev. B0, May 2005
Chapter 3 Site Preparation
Maintaining Safety with Electricity
Warning
Read the installation instructions before you connect the equipment to its power source.
The MGX 8850 AC and DC powered systems are intended for installation in a RESTRICTED ACCESS
LOCATION.
Safety Recommendations
The guidelines that follow help ensure your safety and protect the MGX 8850 equipment. The list of
guidelines may not address all potentially hazardous situations in your working environment, so be alert,
and exercise good judgement at all times.
The safety guidelines are
• Keep the chassis area clear and dust-free before, during, and after installation.
• Keep tools away from walk areas where people could fall over them.
• Do not wear loose clothing or jewelry, such as rings, bracelets, or chains, which may become caught
in the chassis.
• Wear safety glasses if you are working under any conditions that may be hazardous to your eyes.
• Do not perform any actions that create a potential hazard to people or make the equipment unsafe.
• Never attempt to lift an object that is too heavy for one person to handle.
Maintaining Safety with Electricity
Warning
Before working on a chassis or working near power supplies, unplug the power cords on an
AC-powered system. On a DC-powered system, disconnect the power at the circuit breakers.
Follow these guidelines when working on equipment powered by electricity:
• Locate the emergency power-off switch for the room in which you are working. If an electrical
accident occurs, you can quickly turn off the power.
• Do not work alone if potentially hazardous conditions exist anywhere in your workspace.
• Never assume that power is disconnected from a circuit: always check the circuit.
• Carefully look for possible hazards in your work area, such as moist floors, ungrounded power
extension cords, or missing safety grounds.
• If an electrical accident occurs:
–
Use caution—do not let yourself become a victim.
–
Disconnect power from the system.
–
If possible, send another person to get medical aid. Otherwise, assess the condition of the victim
then call for help.
• Use the MGX 8850 AC and MGX 8850 DC systems within their marked electrical ratings and
product usage instructions.