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Installing and Upgrading Internal Modules and FRUs in Cisco 1900 Series ISRs

Tighten the securing screws.

Step 6

Replace the cover. See

Step 7

Installing and Replacing CompactFlash Memory Cards

This section describes installing and replacing CompactFlash (CF) memory cards in Cisco 1941

integrated services routers. 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:

•

Preventing Electrostatic Discharge Damage

This section describes installing and replacing CompactFlash (CF) memory cards in Cisco 1900 series

integrated services routers. It contains the following sections:

To prevent ESD damage, follow these guidelines:

•

For safety, periodically check the resistance value of the antistatic strap. The measurement should be

Caution

between 1 and 10 megohms (Mohms).

Removing a CompactFlash Memory Card

To remove a CompactFlash memory card from the chassis, perform the following steps:

Caution

Do not remove a CompactFlash memory card from the chassis while it is being accessed. The CF LED

blinks to indicate when flash memory is being accessed. Removing the CompactFlash memory card from

the router while flash memory is being accessed can cause data corruption and erratic operation.

Remove the CompactFlash cover by placing a flat screwdriver in the slot and pushing sideways against

Step 1

the tension to release the cover door. (See

"Opening and Closing the Chassis" section on page

Preventing Electrostatic Discharge Damage, page 21

Removing a CompactFlash Memory Card, page 21

Installing a CompactFlash Memory Card, page 23

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.

Installing and Upgrading Internal Modules and FRUs in Cisco 1900 Series ISRs

Modules Internal to the Cisco 1941 Router

Figure 19

and

Figure

20.)