Cisco Systems UBR7100E manual Electrostatic Discharge Prevention, Chassis Lifting Guidelines

Chapter 2 Preparing for Installation

Safety Guidelines

Electrostatic Discharge Prevention

Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. ESD damage occurs when electronic components are improperly handled and can result in complete or intermittent failures. Figure 2-1illustrates how to attach an electrostatic discharge wrist strap.

Always follow ESD-prevention procedures when you remove and replace components. Ensure that the chassis is electrically connected to earth ground. Wear an ESD-preventive wrist strap, ensuring that it makes good skin contact. Connect the grounding clip to an unpainted surface of the chassis frame to safely ground unwanted ESD voltages. To guard against ESD damage and shocks, the wrist strap and cord must operate properly. If no wrist strap is available, ground yourself by touching the metal part of the chassis.

Caution For safety, periodically check the resistance value of the antistatic strap, which should be between 1 and 10 megohms (Mohm).

Figure 2-1 Attaching an Electrostatic Discharge Wrist Strap

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Chassis Lifting Guidelines

A fully configured Cisco uBR7100 series router weighs approximately 32 pounds (14.5 kg). The chassis is not intended to be moved frequently. Before you install the router, ensure that your site is properly prepared so you can avoid having to move the chassis later to accommodate power sources and network connections.

Whenever you lift the chassis or any heavy object, follow these guidelines:

•Always disconnect all external cables before lifting or moving the chassis.

•Ensure that your footing is solid, and balance the weight of the object between your feet.

•Lift the chassis slowly; never move suddenly or twist your body as you lift.

•Keep your back straight and lift with your legs, not your back. If you must bend down to lift the chassis, bend at the knees, not at the waist, to reduce the strain on your lower back muscles.

•Lift the chassis from the bottom; grasp the underside of the chassis exterior with both hands.

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

OL-5916-01 2-5