Installing and Upgrading Internal Modules and FRUs in Cisco 1900 Series ISRs
Modules Internal to the Cisco 1941 Router
21
Installing and Upgrading Internal Modules and FRUs in Cisco 1900 Series ISRs
Step 6
Tighten the securing screws.
Step 7
Replace the cover. See
“Opening and Closing the Chassis” section on page 5
.
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, page 21
•
Removing a CompactFlash Memory Card, page 21
•
Installing a CompactFlash Memory Card, page 23
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:
•
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).
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.
Step 1
Remove the CompactFlash cover by placing a flat screwdriver in the slot and pushing sideways against
the tension to release the cover door. (See
Figure 19
and
Figure 20
.)
