Nortel 4070 Installation Manual page 22

22 Installation preparation
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Cable and connector safety
Use the following instructions to safeguard cables and connectors while
working with the NSNA.
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Copyright © 2008, Nortel Networks
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To promote proper air circulation, ensure the device vents are not
blocked or obstructed by cables, panels, server rack frames, or other
materials. A minimum of 15 centimeters (6 inches) of space provides
proper airflow.
To prevent damage to server components, always install a blank filler
panel to cover the open space and ensure proper air circulation.
Install the device only in a server rack with perforated doors.
Plan the device installation starting from the bottom of the server rack.
Install the heaviest device in the bottom of the server rack.
Do not extend more than one device out of the server rack at the same
time.
Remove the server rack doors and side panels to provide easier access
during installation.
Connect the device to a properly grounded outlet.
Do not overload the power outlet when multiple devices are installed in
the server rack.
Install the device in a server rack that meets the following requirements:
— Minimum depth of 70 millimeters (2.76 inches) between the front
mounting flange and inside of the front door.
— Minimum depth of 157 millimeters (6.18 inches) between the rear
mounting flange and inside of the rear door.
— Minimum depth of 718 millimeters (28.27 inches) and maximum
depth of 762 millimeters (30 inches) between the front and rear
mounting flanges to support the use of the cable-management arm.
Do not place any object directly on a server rack mounted device.
Server rack mounted devices are not meant to be load bearing units.
When mounting this device in a server rack, do not stack units directly
on top of one another in the rack. Each unit must be secured with
appropriate mounting brackets. Mounting brackets are not designed
to support multiple units.
Connect the device to a properly grounded outlet.
Do not overload the power outlet when multiple devices are installed in
the server rack.
Nortel Secure Network Access
Installation — Quick Start Switch 4070
NN47230-303 01.01 Standard
2.0 28 July 2008