Cisco Systems Network Router 1805 DOCSIS User Manual

C H A P T E R  
9
Installing and Replacing CompactFlash Memory  
Cards on Cisco 1805 DOCSIS Cable Router  
This chapter describes installing and replacing CompactFlash memory cards in Cisco 1805 DOCSIS  
cable router. 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  
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:  
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.  
Caution  
For safety, periodically check the resistance value of the antistatic strap. The measurement should be  
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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Chapter 9 Installing and Replacing CompactFlash Memory Cards on Cisco 1805 DOCSIS Cable Router  
Using the Compact Flash Guard  
The Compact Flash guard (CF-guard) provides protection for the compact flash memory slot.  
Note  
A small flat-head screwdriver is required to attach the CF-guard.  
To install the CF-guard, follow these steps:  
Step 1  
Unpack the CF-guard.  
Step 2  
Step 3  
Slip the CF-guard flap into the notch in the CompactFlash memory slot.  
Screw the CF-guard into the screw hole.  
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Chapter 9 Installing and Replacing CompactFlash Memory Cards on Cisco 1805 DOCSIS Cable Router  
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