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Chapter 9
Using the SD Flash Memory Module
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Online Insertion and Removal (OIR)
The SD card can be installed and removed while the router is operating normally.
Caution
Do not replace the SD card if the LED is blinking green. A blinking green state indicates that a data
transfer between the router and the SD card is in progress. Removing the card during a data transfer will
interrupt this process and could damage system data.
Safety Warnings
Before performing any of the tasks in this chapter, read the safety warnings in the
Site Preparation
Preventing Electrostatic Discharge Damage
SD flash memory modules are sensitive to electrostatic discharge (ESD) damage, which can occur when
electronic cards or components are handled improperly, results in complete or intermittent failures.
To prevent ESD damage, follow these guidelines:
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Tools You Supply
You must provide a #2 Phillips screwdriver to remove the cover over the SD card slot.
Removing and Inserting the SD Card
To install or remove a SD card:
Use a Phillips screwdriver to remove the cover over the SD card slot
Step 1
Confirm that the SD card LED
Step 2
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OL-26438-02
The router requires an SD card with greater memory capacity.
You must replace a faulty or damaged SD card.
chapter.
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 the 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.
Green—Installed SD card is operating normally.
Amber blinking—An unsupported card is installed in the router SD card slot.
(Figure
9-2) displays one of the following states:
Cisco 1120 Connected Grid Router Hardware Installation Guide
Inserting the SD Card
Installation Safety and
(Figure
9-1).
9-3
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