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Table 31: Cabinet Requirements for the QFX5200

(Connued)

Cabinet Requirement Guidelines

Cabinet airow requirements When you mount the switch in a cabinet, ensure that venlaon through

the cabinet is sucient to prevent overheang.

• Ensure that the cool air supply you provide through the cabinet

adequately dissipates the thermal output of the switch (or switches).

• Ensure that the cabinet allows the chassis hot exhaust air to exit the

cabinet without recirculang into the switch. An open cabinet

(without a top or doors) that employs hot air exhaust extracon from

the top allows the best airow through the chassis. If the cabinet

contains a top or doors, perforaons in these elements assist with

removing the hot air exhaust.

•

The QFX5200 fans exhaust hot air either through the vents on the

port panel or through the fans and power supplies. Install the switch

in the cabinet in a way that maximizes the open space on the FRU

side of the chassis. This maximizes the clearance for crical airow.

•

Route and dress all cables to minimize the blockage of airow to and

from the chassis.

• Ensure that the spacing of rails and adjacent cabinets allows for the

proper clearance around the switch and cabinet.

Juniper QFX5200 User Manual

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