Cisco 3600 Series Upgrade-Anweisungen - Seite 10

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Tools and Equipment Needed

Preventing Electrostatic Discharge Damage

Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. ESD can occur

when electronic printed circuit cards are improperly handled, and can result in complete or intermittent

failures. Always follow ESD-prevention procedures when removing and replacing cards. Ensure that the

router chassis is electrically connected to earth ground. Wear an ESD-preventive wrist strap, ensuring

that it makes good skin contact. Connect the clip to an unpainted surface of the chassis frame to safely

channel unwanted ESD voltages to ground. To properly guard against ESD damage and shocks, you must

use the wrist strap and cord properly. If no wrist strap is available, ground yourself by touching the metal

part of the chassis.

For safety, periodically check the resistance value of the antistatic strap. It should be between 1 and 10

Caution

megohms (Mohms).

Caution

Before opening the chassis, be sure that you have discharged all static electricity from your body and the

power is off.

Tools and Equipment Needed

You need the following tools and equipment to remove and install DIMMs or SODIMMs in a Cisco 3700

series router:

•

The following warning applies to DC powered systems only.

Note

Before performing any of the following procedures, ensure that power is removed from the DC circuit.

Warning

Statement 1003

Upgrading System Memory in Cisco 3700 Series Routers

Number 2 Phillips screwdriver

Small flat-blade screwdriver

ESD-preventive wrist strap

Antistatic mat

OL-5423-02