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4
Regulatory Compliance and Safety Information for the Cisco MDS 9000 Family
78-17429-05
Site Preparation
• Ensure that cables do not obstruct the airflow through the chassis.
• Consider heat dissipation of all equipment when determining the air-conditioning requirements as
specified in the hardware installation guide. When evaluating airflow requirements take into
consideration that as a general rule hot air generated by equipment at the bottom of the rack can be
drawn into the intake ports of the equipment above.
Stabilizing the System
The standard rack dimensions (H x W x D) are 84 x 17.75 x 19.25 inches ( 213.4 x 45.1 x 23.5 cm).
Follow these guidelines to stabilize the system:
• Install any stabilizers provided with the rack before mounting or servicing the system in the rack.
• Load the rack from the bottom to the top, with the heaviest system at the bottom.
• Do not stack the system on top of any other equipment. If the system falls, it can cause severe bodily
injury and damage the equipment.
• If you are using an equipment shelf, ensure that the shelf is constructed to support the weight and
dimensions of the chassis.
• Ensure that the weight of the chassis does not make the rack unstable. Stabilize telco racks with
ceiling brackets if the rack is populated with heavy equipment.
• Bolt the rack to the floor for stability.
Lifting the System
Follow these guidelines when lifting the system:
• Disconnect all power and external cables before lifting the system.
• Ensure that your footing is solid and the weight of the system is evenly distributed between your
feet.
• Lift the system slowly, keeping your back straight. Lift with your legs, not with your back. Bend at
the knees, not at the waist.
• Do not attempt to lift the system with the handles on the power supplies, front panel, or on any of
the cards. These handles are not designed to support the weight of the system.
• Depending on the weight of the system, more than one person might be required to lift it.
Figure 1 shows the number of people needed to lift the system by weight.
Figure 1 Safely Lifting the System
<40 lb
(<18 kg)
40 to 70 lb
(18 to 32 kg)
70 to 121 lb
(32 to 55 kg)
>121 lb
(>55 kg)
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