Alcatel-Lucent 7450 ESS-1, Installation Manual

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Warnings and Notes
Page 26 7450 ESS-1
Warnings and Notes
Warning:
• Do not assume that power has been disconnected from a circuit. Be sure to disconnect power to
the equipment rack and external cables before installing or removing the 7450 ESS-1 chassis.
• Do not install equipment that appears to be damaged.
• 7450 ESS-1 systems equipped with DC-input power supplies should be installed in restricted
access areas, such as a dedicated equipment room or an equipment closet, in accordance with
Articles 110-16, 110-17, and 110-18 of the National Electric Code ANSI/ NFPA 70.
Notes:
• Prepare the equipment rack and site before installing the chassis. Plan the placement near the
power sources and network interface connections.
• An empty 7450 ESS-1 chassis weighs approximately 27 lbs. (12.25 kg).
• For personal safety, use at least two people or a hand cart to install the chassis.
• Always install the heaviest equipment on the bottom of the rack to keep the center of gravity of
the equipment rack as low as possible.
• To provide necessary stability, ensure that the equipment rack is bolted to the floor. Ceiling
brackets are useful to provide additional stability.
• The equipment rack must be properly grounded.
• Install components after the chassis is installed in a rack.
• Maintain a clearance of at least 20-inches (50.8 cm) at the front and back of the switch.
• Maintain a clearance of at least 3-inches (7.6 cm) on each side to ensure adequate air intake and
exhaust.
• The 7450 ESS-1 chassis includes factory installed rack mounting brackets to front mount in a
19-inch equipment rack.