Cisco Systems CISCO7576, Cisco 7513-MX Tools Required, Preventing Electrostatic Discharge Damage

Installation Safety, ESD Precautions, and Tools Required

In addition, use the guidelines that follow when working with any equipment that is 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 is disconnected at the network interface.

•Use caution when installing or modifying telephone lines.

Preventing Electrostatic Discharge Damage

Electrostatic discharge (ESD) damage, which can occur when electronic boards or components are handled improperly, can result in complete or intermittent failures.

Following are guidelines for preventing ESD damage:

•Always use an ESD-preventive wrist strap or ankle strap and ensure that it makes good skin contact.

•When removing or installing an ESD-sensitive component, connect the equipment end of a ground strap to an unpainted surface of the chassis, such as the chassis frame.

•If you are returning a replaced part to the factory, immediately place it in a static shielding bag to avoid ESD damage to the board.

•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 antistatic strap. The measurement should be between 1 and 10 megohms.

Tools Required

You need the following tools to install or replace the backplane and card cage assembly:

•1/4-inch flat-blade screwdriver to loosen the captive screws on the power supplies and card cage

•Number 1 Phillips or 1/4-inch, flat-blade screwdriver to remove any blank processor module carriers (fillers) and to tighten the captive installation screws that secure the processor module in its slot

•Spare card cage assembly—includes the card cage with the chassis interface (attached) and dual arbiter (attached)

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ESD-preventive wrist strap

Small piece of masking or clear cellophane tape to mark the new EEPROM device

Antistatic packaging in which the old card cage assembly should be placed

8Cisco 7513, Cisco 7513-MX, and Cisco 7576 Card Cage and Backplane Assembly Replacement Instructions