Prerequisites
Safety Guidelines
Review the following guidelines to help ensure your safety and protect the equipment from damage
during the installation.
Warning
the power cord. (For translations of this safety warning, refer to the section "Power Disconnection
Warning" on page 29.)
Warning
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
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
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.
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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:
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8 Cisco 7000 and Cisco 7507 Rack-Mount Kit Installation Instructions
Before working on a system that has an on/off switch, turn OFF the power and unplug
Do not touch the power supply when the power cord is connected. For systems with a
Before working on a chassis or working near power supplies, unplug the power cord on
This unit might have more than one power cord. To reduce the risk of electric shock,
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.
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.
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