Cisco Systems OL-11497-03 manual Safety with Electricity

Chapter 2 Preparing for Installation

Safety with Electricity

Caution Periodically check the resistance value of the antistatic wrist strap. The resistance measurement should be between 1 and 10 megohms.

Safety with Electricity

The line cards, redundant clock and scheduler cards, switch fabric cards, alarm cards, blower module, and redundant power modules can be removed and replaced while the router is operating without presenting an electrical hazard or causing damage to the router.

Follow these basic guidelines when working with any electrical equipment:

•Before beginning any procedures requiring access to the interior of the router, locate the emergency power-off switch for the room in which you are working.

•Disconnect all external cables before installing or removing a router.

•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.

•Never install equipment that appears damaged.

•Carefully examine your work area for possible hazards such as moist floors, ungrounded power extension cables, and missing safety grounds.

•If an electrical accident does occur, proceed as follows:

–Use caution; do not become a victim yourself. Disconnect power to the router.

–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, observe the following guidelines when working with any equipment that is disconnected from a power source but still connected to telephone or network wiring:

•Never install telephone wiring during a lightning storm.

	Cisco 12006 and Cisco 12406 Router Installation and Configuration Guide
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