Cisco Systems UBR7100E manual Preparing for Installation Safety Guidelines

Chapter 2 Preparing for Installation

Safety Guidelines

Follow these guidelines when you work on equipment powered by electricity.

•Locate the emergency power-off switch for the room in which you are working. Then, if an electrical accident occurs, you can act quickly to turn off the power.

•Before working on the system, unplug the power cord.

•Disconnect all power before doing the following:

–Installing or removing a chassis

–Working near power supplies

Warning Before working on a system that has an on/off switch, turn OFF the power and unplug the power cord. Statement 1

Warning Before working on a chassis or working near power supplies, unplug the power cord on AC units; disconnect the power at the circuit breaker on DC units. Statement 12

Warning When installing or replacing the unit, the ground connection must always be made first and disconnected last. Statement 1046

•Do not work alone if potentially hazardous conditions exist.

•Never assume that power is disconnected from a circuit. Always check.

•Look carefully for possible hazards in your work area, such as moist floors, ungrounded power extension cables, frayed power cords, and missing safety grounds.

•If an electrical accident occurs, proceed as follows:

–Use caution; do not become a victim yourself.

–Turn off power to the system.

–If possible, send another person to get medical aid. Otherwise, assess the condition of the victim and then call for help.

–Determine if the person needs rescue breathing or external cardiac compressions; then take appropriate action.

In addition, use the guidelines that follow when working with any equipment that is disconnected from a power source, but still connected to telephone wiring or other network cabling.

•Never install telephone wiring during a lightning storm.

•Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.

•Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface.

•Use caution when installing or modifying telephone lines.

Cisco uBR7100 Series and Cisco uBR7100E Series Universal Broadband Router Hardware Installation Guide

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