Specifications

7
Cisco 12010, Cisco 12410, and Cisco 12810 Router Clock and Scheduler, Switch Fabric, and Alarm Card Replacement Instructions
OL-13810-01
Preparing for Installation
• Do not work alone if potentially hazardous conditions exist.
• Do not perform any action that creates a potential hazard to people 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.
Safety with Electricity
• Before beginning any procedures requiring access to the interior of the router, locate the emergency
power-off switch for the room in which you are working.
• 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.
• Carefully examine your work area for possible hazards such as moist floors, ungrounded power
extension cables, and missing safety grounds.
• If an electrical accident does occur, proceed as follows:
– Use caution; do not become a victim yourself. Disconnect power to the router.
– 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.
In addition, observe the following guidelines 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.