Safety Guidelines
Safety with Electricity
The line cards, RP, switch fabric cards, blower modules, and redundant power supplies are designed to be removed and replaced while the system is operating without presenting an electrical hazard or damage to the system.
Follow these basic guidelines when working with any electrical equipment:
•Before beginning any procedures requiring access to the interior of the Cisco 12012, locate the emergency
•Look carefully for possible hazards in your work area, such as moist floors, ungrounded power extension cables, and missing safety grounds.
•If an electrical accident occurs, proceed as follows:
—Use caution; do not become a victim yourself. Disconnect 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.
•Disconnect all power and external cables before installing or removing a router.
•Never assume that power has been disconnected from a circuit; always check.
•Do not perform any action that creates a potential hazard to people or makes the equipment unsafe.
•Never install equipment that appears damaged.
In addition, use the guidelines that follow when working with any equipment that is disconnected from a power source, but still connected to telephone or network wiring:
•Never install telephone wiring during a lightning storm.
•Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.
•Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface.
•Use caution when installing or modifying telephone lines.
Cisco 12012 Gigabit Switch Router Card Cage Assembly Replacement Instructions 5
