5-59
Cisco 2900 Series and 3900 Series Hardware Installation Guide
OL-18712-03
Chapter 5 Installing and Upgrading Internal Modules and FRUs
Removing and Installing CompactFlash Memory Cards
Removing and Installing CompactFlash Memory Cards
This section describes installing and replacing CompactFlash (CF) memory cards in Cisco 2900 and
3900 series integrated services routers. It contains the following sections:
• Preventing Electrostatic Discharge Damage, page 5-59
• Removing a CompactFlash Memory Card, page 5-59
• Installing a CompactFlash Memory Card, page 5-61
Preventing Electrostatic Discharge Damage
CF memory cards are sensitive to electrostatic discharge (ESD) damage, which can occur when
electronic cards or components are handled improperly. ESD results in complete or intermittent failures.
To prevent ESD damage, follow these guidelines:
• 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 CF memory cards 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.
Caution For safety, periodically check the resistance value of the antistatic strap. The measurement should be
between 1 and 10 megohms (Mohms).
Removing a CompactFlash Memory Card
To remove a CF memory card from the chassis, perform the following steps: See Figure 5-52.
Caution Do not remove a CF memory card from the chassis while it is being accessed. The CF LED blinks to
indicate when flash memory is being accessed. Removing the CF memory card from the router while
flash memory is being accessed can cause data corruption and erratic operation.
Step 1 Read the “Safety Warnings” section on page 5-2 section and disconnect the power supply before you
perform any module replacement.
Step 2 Remove the CF cover by placing a flat-blade screwdriver in the slot and pushing sideways against the
tensioner to release the cover door. (See Figure 5-50 and Figure 5-51.)
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