Prerequisites
Safety Guidelines
Review the following guidelines to help ensure your safety and protect the equipment from damage during the installation.
Warning Before working on a system that has an on/off switch, turn OFF the power and unplug the power cord. (For translations of this safety warning, refer to the section “Power Disconnection Warning” on page 29.)
Warning Do not touch the power supply when the power cord is connected. For systems with a power switch, line voltages are present within the power supply even when the power switch is off and the power cord is connected. For systems without a power switch, line voltages are present within the power supply when the power cord is connected. (For translations of this safety warning, refer to the section “Power Supply Warning” on page 29.)
Warning Before working on a chassis or working near power supplies, unplug the power cord on AC units; disconnect the power at the circuit breaker on DC units. (For translations of this safety warning, refer to the section “Power Supply Disconnection Warning” on page 30.)
Warning This unit might have more than one power cord. To reduce the risk of electric shock, disconnect the two power supply cords before servicing the unit. (For translations of this safety warning, refer to the section “Electric Shock Warning” on page 31.)
Working with Electrical Equipment
When working with any electrical equipment, the following guidelines will help to ensure your safety and protect the equipment. This list does not include all potentially hazardous situations, so be alert.
•Never try to lift the chassis by yourself; two people are required to lift it.
•Always turn all power supplies off and unplug all power cords before installing or removing a chassis.
•Keep the chassis area clear and dust free during and after the installation.
•Keep tools and chassis components away from walk areas.
•Keep your path clear between the chassis and the rack. When carrying large, heavy equipment such as the chassis, obstacles such as hand tools, cables, or components not be easily visible and can cause accidents.
Lifting the Chassis Safely
The chassis weighs 76 pounds (34.5 kilograms [kg]) when empty (with no interface processors or power supplies installed) and 145 pounds (65.8 kg) with two power supplies and seven processor modules installed. The chassis is not intended to be moved frequently. Before you install the router, ensure that your site is properly prepared, so you can avoid having to move the chassis later to accommodate power sources and network connections.
Whenever you lift the chassis or any heavy object, follow these guidelines:
•Never attempt to lift the chassis by yourself. The size and weight of the chassis require two people to safely lift and move it without causing injury or damaging the equipment.
8Cisco 7000 and Cisco 7507
