User guide

Preparing to Install the Cisco 2524 and Cisco 2525 Routers 2-3
Safety Recommendations
Warning Read the installation instructions before you connect the system to its power
source. (To see translated versions of this warning, refer to the appendix “Translated Safety
Warnings.”)
• Look carefully for possible hazards in your work area, such as moist floors, ungrounded
power extension cables, frayed power cords, and missing safety grounds.
• If an electrical accident occurs, proceed as follows:
— Use caution; do not become a victim yourself.
— Turn off power to the system.
— If possible, send another person to get medical aid. Otherwise, assess the condition
of the victim and then call for help.
— Determine if the person needs rescue breathing or external cardiac compressions;
then take appropriate action.
Preventing Electrostatic Discharge Damage
Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. ESD
damage occurs when electronic components are improperly handled and can result in
complete or intermittent failures.
Always follow ESD-prevention procedures when removing and replacing components.
Ensure that the chassis is electrically connected to earth ground. Wear an ESD-preventive
wrist strap, ensuring that it makes good skin contact. Connect the grounding clip to an
unpainted surface of the chassis frame to safely ground unwanted ESD voltages. To
properly guard against ESD damage and shocks, the wrist strap and cord must operate
effectively. If no wrist strap is available, ground yourself by touching the metal part of the
chassis.
Caution For safety, periodically check the resistance value of the antistatic strap, which
should be between 1 and 10 megohms (Mohms).