Datasheet

Using the Flash Disk

OL-6452-04

Safety Guidelines

• Insert a Flash Disk only when the router is not in the process of booting or powering off. If the router

is in ROMmon, the bootloader, or Cisco IOS, and is not booting, you may safely insert a Flash Disk.

• Remove a Flash Disk only when the disk is not being accessed or written to. If the Flash Disk activity

LED is on or blinking, the Flash Disk is being accessed.

• When removing a Flash Disk, make sure to replace it with another Flash Disk that has a good image,

or it may boot into the bootloader or stay in ROMmon when the router is restarted.

• If a Flash Disk is removed and not replaced when the router is powered off, the router may boot into

the bootloader, or it may stay in ROMmon.

Safety Guidelines

Following are safety guidelines that you should follow when working with any equipment that connects

to electrical power, or which might be sensitive to electrostatic discharge (ESD) damage.

Electrical Equipment Guidelines

Follow these basic guidelines when working with any electrical equipment:

• Before beginning any procedures requiring access to the chassis interior, locate the emergency

power-off switch for the room in which you are working.

• Disconnect all power and external cables before moving a chassis.

• Do not work alone when potentially hazardous conditions exist.

• Never assume that power has been disconnected from a circuit; always check.

• Do not perform any action that creates a potential hazard or makes the equipment unsafe.

• Carefully examine your work area for possible hazards such as moist floors, ungrounded power

extension cables, and missing safety grounds.

Electrostatic Discharge Prevention

Electrostatic discharge (ESD) damage, which can occur when electronic cards or components are

improperly handled, results in complete or intermittent failures.

Use the following guidelines for preventing ESD damage:

• 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.

• Avoid contact between the printed circuit boards and clothing. The wrist strap only protects

components from ESD voltages on the body; ESD voltages on clothing can still cause damage.

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

between 1 and 10 megaohms (Mohms).