Alcatel-Lucent 7450 ESS-7, Installation Manual

Page: 38 / 160

Warnings and Notes
Page 38 7450 ESS-7
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-7 chassis.
• Do not install equipment that appears to be damaged.
• Install this unit in a restricted area that is only accessible by authorized service personnel.
Notes:
• Prepare the equipment rack and site before installing the chassis. Plan the chassis placement near
the power sources and network interface connections.
• An empty 7450 ESS-7 chassis weighs approximately 45 lbs. (
20.42
kg). The shipping weight is
approximately 60 lbs. (
27.22 kg).
For personal safety, use at least two people or a hand cart to lift
or move 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 equipment to
ensure adequate air intake and exhaust, and for fan and filter tray maintenance.
• Maintain a clearance of at least 3-inches (7.6 cm) on each side to ensure adequate air intake and
exhaust.
• Maintain adequate air flow to and from all equipment in the rack that might interfere with the
normal flow of cooling air through the chassis.
• The 7450 ESS-7 includes factory installed rack mounting brackets to install in a 19-inch
equipment rack.