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Safety Warnings Summary


This is a summary of safety warnings. For a complete list of warnings, including translations, see the QFX5120 documentation at


Failure to observe these safety warnings can result in personal injury or death.

  • Permit only trained and qualified personnel to install or replace switch components.

  • Perform only the procedures that are described in this quick start and the QFX Series documentation. Other services must be performed only by authorized service personnel.

  • Before installing the switch, read the planning instructions in the QFX Series documentation to make sure that the site meets power, environmental, and clearance requirements for the switch.

  • Before connecting the switch to a power source, read the installation instructions available in the QFX Series documentation.

  • To install the switch, you need one person to lift the switch and a second person to install the mounting screws.

  • If the rack has stabilizing devices, install them in the rack before mounting or servicing the switch in the rack.

  • Before installing or after removing an electrical component, always place it component side up on an antistatic mat that is placed on a flat, stable surface or in an antistatic bag.

  • Do not work on the switch, or connect or disconnect cables during electrical storms.

  • Before you work on equipment that is connected to power lines, remove jewelry, including rings, necklaces, and watches. Metal objects heat up when connected to power and ground and can cause serious burns or become welded to the terminals.

Power Cable Warning (Japanese)

The attached power cable is only for this product. Do not use this cable for another product.