Installing And Replacing Compactflash Memory Cards On Cisco 1800 Series Routers (Modular); Preventing Electrostatic Discharge Damage; Replacing Compactflash Memory Cards - Cisco 1841 - 3G Bundle Router Hardware Installation Manual

Installing and Replacing CompactFlash Memory
Cards on Cisco 1800 Series Routers (Modular)
This chapter describes installing and replacing CompactFlash memory cards in Cisco 1800 series
integrated services routers (ISR) (modular). You can perform these procedures when the router has been
installed in its working location with all power and interface cables connected. This chapter contains the
following sections:
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Preventing Electrostatic Discharge Damage

CompactFlash memory cards are sensitive to electrostatic discharge (ESD) damage. ESD damage, which
can occur when electronic cards or components are handled improperly, results in intermittent or
complete failures.
To prevent ESD damage, follow these guidelines:
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For safety, periodically check the resistance value of the antistatic strap. The measurement should be
Caution
between 1 and 10 megohms (Mohms).

Replacing CompactFlash Memory Cards

This section describes how to remove and install CompactFlash memory cards.
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Preventing Electrostatic Discharge Damage, page 10-1
Replacing CompactFlash Memory Cards, page 10-1
Always use an ESD wrist or ankle strap and ensure that it makes good skin contact.
Connect the equipment end of the strap to an unfinished chassis surface.
Place a removed CompactFlash memory card on an antistatic surface or in a static shielding bag. If
the card will be returned to the factory, immediately place it in a static shielding bag.
Avoid contact between the card and clothing. The wrist strap protects the card from ESD voltages
on the body only; ESD voltages on clothing can still cause damage.
Do not remove the wrist strap until the installation is complete.
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Cisco 1800 Series Routers (Modular) Hardware Installation Guide
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