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Cisco MGX 8800/8900 Series Hardware Installation Guide
Releases 2 - 5.2, Part Number OL-4545-01, Rev. H0, May 2006
Chapter3 Preparing for Installation
Safety Requirements
Warning
Read the installation instructions before you connect the system to its power source.
Statement 1004
Warning
Before working on equipment that is connected to power lines, remove jewelry (including rings,
necklaces, and watches). Metal objects will heat up when connected to power and ground and can
cause serious burns or weld the metal object to the terminals.
Statement 43
Warning
Do not stare into the beam or view it directly with optical instruments.
Statement 29
Warning
Two people are required to lift the chassis. Grasp the chassis underneath the lower edge and lift with
both hands. To prevent injury, keep your back straight and lift with your legs, not your back. To prevent
damage to the chassis and components, never attempt to lift the chassis with the handles on the
power supplies or on the interface modules. These handles were not designed to support the weight
of the chassis.
Statement 52
Warning
Do not work on the system or connect or disconnect cables during periods of lightning activity.
Statement 1001
Warning
To prevent the system from overheating, do not operate it in an area that exceeds the maximum
recommended ambient temperature of 104°F (40°C).
Statement 1047
Warning
Before working on a system that has an On/Off switch, turn OFF the power and unplug the power cord.
Statement 1
Warning
Never install an AC power module and a DC power module in the same chassis.
Statement 1050
Warning
Power off the unit before you begin.
Statement 237
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.
Statement 12
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 if 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.
Statement 4