General Site Guidelines
Ecient device operaon requires proper site planning and maintenance. It also requires proper layout
of the equipment, rack or cabinet, and wiring closet.
To plan and create an acceptable operang environment for your device and prevent environmentally
caused equipment failures:
• Keep the area around the chassis free from dust and conducve material, such as metal akes.
• Follow the prescribed airow guidelines to ensure that the cooling system funcons properly. Ensure
that exhaust from other equipment does not blow into the intake vents of the device.
• Follow the prescribed electrostac discharge (ESD) prevenon procedures to prevent damaging the
equipment. Stac discharge can cause components to fail completely or intermiently over me.
• Install the device in a secure area, so that only authorized personnel can access the device.
QFX5240 Grounding Cable and Lug Specicaons
For installaons that require a separate grounding conductor to the chassis, the switch must be
adequately grounded before power is connected to ensure proper operaon and to meet safety and
electromagnec interference (EMI) requirements.
To ensure proper operaon and to meet safety and EMI requirements, you must connect a QFX5240
switch to earth ground before you connect power to the device.
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