Ground Screw - Allied Telesis AT-IS230-10GP Installation Manual

Ground Screw

The ground screw is used to connect the chassis to the earth ground at the
installation site. The instructions for connecting the post are provided in
the paragraph, "Connect Ground Wire" on page 78.
Warning
The switch must be connected to an earth ground. Do not operate
the device without an earth ground.
IS Series Industrial Ethernet Layer 2 Switch Installation Guide
37