Cisco Systems OL-7861-01 manual Safety Guidelines, Preventing Electrostatic Discharge

Preparing for Installation

•Required Tools and Equipment, page 10

Safety Guidelines

Before you perform any procedure in this publication, review the safety guidelines in this section to avoid injuring yourself or damaging the equipment.

The following guidelines are for your safety and to protect equipment. The guidelines do not include all hazards. Be alert.

Note Review the safety warnings listed in the Regulatory Compliance and Safety Information for

Cisco 12000 Series Internet Router publication (Document Number 78-4347-xx) that accompanied your router before installing, configuring, or maintaining a line card.

•Keep the work area clear and dust free during and after installation. Do not allow dirt or debris to enter into any laser-based components.

•Do not wear loose clothing, jewelry, or other items that could get caught in the router while working with line cards.

•Cisco equipment operates safely when it is used in accordance with its specifications and product usage instructions.

Before working with laser optics, read the “Laser Safety” section on page 81 .

Preventing Electrostatic Discharge

Electrostatic discharge (ESD) damage, which can occur when electronic cards or components are improperly handled, results in complete or intermittent failures. Electromagnetic interference (EMI) shielding is an integral component of the line card. Cisco recommends using an ESD-preventive strap whenever you are handling network equipment or one of its components.

The following are guidelines for preventing ESD damage:

•Always use an ESD-preventive wrist or ankle strap and ensure that it makes good skin contact. Connect the equipment end of the connection cord to an ESD connection socket on the router or to bare metal on the chassis.

•Handle Ethernet line cards by the captive installation screws, the provided handle, ejector levers, or the line card metal carrier only; avoid touching the board or connector pins.

•Place removed Ethernet line cards board-side-up on an antistatic surface or in a static shielding bag. If you plan to return the component to the factory, immediately place it in a static shielding bag.

•Avoid contact between the Ethernet line cards and clothing. The wrist strap only protects the board from ESD voltages on the body; ESD voltages on clothing can still cause damage.

Warning For safety, periodically check the resistance value of the ESD strap. The measurement should be between 1 and 10 megohms.

Cisco XR 12000 Series Router Ethernet Line Card Installation

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