Safety With Electricity - Cisco 4451 ISR Hardware Installation Manual

Safety Recommendations
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Safety with Electricity

Warning This unit might have more than one power supply connection. All connections must be removed
to de-energize the unit. Statement 1028
Do not work on the system or connect or disconnect cables during periods of lightning activity.
Warning
Statement 1001
Read the installation instructions before connecting the system to the power source. Statement
Warning
1004
The covers are an integral part of the safety design of the product. Do not operate the unit
Warning
without the covers installed. Statement 1077
Follow these guidelines when working on equipment powered by electricity:
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Hardware Installation Guide for the Cisco 4000 Series Integrated Services Router
2-6
If you remove the chassis cover, put it in a safe place.
Keep tools and chassis components away from walk areas.
Do not wear loose clothing that could get caught in the chassis. Fasten your tie or scarf and roll up
your sleeves.
Wear safety glasses when working under conditions that might be hazardous to your eyes.
Do not perform any action that creates a hazard to people or makes the equipment unsafe.
Locate the emergency power-off switch in the room in which you are working. If an electrical
accident occurs, you can quickly turn off the power.
Disconnect all power before doing the following:
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Installing or removing a chassis
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Working near power supplies
Look carefully for possible hazards in your work area, such as moist floors, ungrounded power
extension cables, frayed power cords, and missing safety grounds.
Do not work alone if hazardous conditions exist.
Never assume that power is disconnected from a circuit. Always check.
Never open the enclosure of the internal power supply.
If an electrical accident occurs, proceed as follows:
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Use caution; do not become a victim yourself.
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Turn off power to the device.
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If possible, send another person to get medical aid. Otherwise, assess the condition of the victim
and then call for help.
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Determine if the person needs rescue breathing or external cardiac compressions; then take
appropriate action.
Chapter 2 Cisco 4000 Series ISRs Preinstallation
OL-32185-02