### 2.2.1 General Precautions

l Install the equipment in a standard 19-inch rack.

l Cut off all power supplies and unplug all cables before mounting the equipment in a rack or removing it from a rack.

l Never operate the equipment in a wet environment, and avoid any liquids inside it. Keep the chassis clean and dust-free.

l Keep the equipment away from heat sources.

l Ensure that the rack and power distribution system are properly grounded.

l Keep the equipment away from walk areas.

l During installation and maintenance, do not wear loose clothing or ornament that may get caught in the chassis.

l Keep tools and accessories away from walk areas.