Cisco Catalyst 7500 Series Wymiana instrukcji obsługi - Strona 4
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Installation Prerequisites
Warning
with telephone-network voltages. (For a translation of this safety warning, refer to the section
"Translated Safety Warnings" on page 32.)
Preventing Electrostatic Discharge Damage
Electrostatic discharge (ESD) damage, which can occur when electronic cards or components are
improperly handled, results in complete or intermittent failures. Following are guidelines for
preventing ESD damage:
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Caution
should be between 1 and 10 megohms.
List of Parts and Tools
Following are the tools and equipment that you will need to complete the CI replacement:
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4 Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis
Before opening the chassis, disconnect the telephone-network cables to avoid contact
Always use an ESD-preventive wrist or ankle strap and ensure that it makes good skin contact.
Connect the equipment end of the strap to a captive installation screw on an installed power
supply.
Handle the CI by the edges only; avoid touching the board or connector.
Place a removed CI board-side-up on an antistatic surface or in a static shielding bag. If the
component will be returned to the factory, immediately place it in a static shielding bag.
Avoid contact between the CI and clothing. The wrist strap only protects the board from ESD
voltages on the body; ESD voltages on clothing can still cause damage.
For safety, periodically check the resistance value of the antistatic strap. The measurement
ESD-preventive equipment (a disposable wrist strap is included with all spares and upgrade kits)
Antistatic mat, foam pad, or bag for the removed CI (immediately place a removed board into an
antistatic bag if you will return it to the factory)
3/16-inch, flat-blade screwdriver; Number 1 and Number 2 Phillips screwdrivers
CI board for your Cisco 7500 series chassis (MAS-7500CI=)