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42 Chapter 2 Nortel VPN Router 1750 chassis
NN46110-316 03.01
Installing the chassis in an equipment rack
To mount the VPN Router 1750 in an equipment rack, you need the following
equipment:
• standard 19-inch equipment rack
• four screws (supplied with the chassis)
• four cage nuts (supplied with the chassis) if the rack does not have threaded
rail holes
• a #2 Phillips screwdriver
Rack-mount recommendations
When you mount the chassis in the equipment rack, observe the following
standard recommendations:
• The maximum recommended ambient temperature is 40
o
C (104
o
F). Ensure
that the internal temperature of the rack does not exceed 40
o
C (104
o
F).
• Do not block the power supply vents or otherwise restrict air flow when you
install the chassis in the rack.
• Stabilize the rack so that it does not tip over under the weight of the gateway
and other devices.
• Before you install and turn on the gateway, ensure that the electrical branch
circuits can handle the VPN Router 1750 and other units in the rack.
• Maintain a reliable earth-ground path in the rack system. You must connect
the gateway to an earth ground.
Attaching the shelf in the equipment rack
The VPN Router 1750 ships with a rack-mount shelf to support the chassis in the
equipment rack.
To attach the shelf to the inside of the equipment rack, perform the following
steps: