Cisco Catalyst 9500 Series Hardware Installation Manual page 33

Preparing for Installation
• Always use an ESD wrist or ankle strap and ensure that it makes good skin contact.
• Connect the equipment end of the strap to an unfinished chassis surface.
• When installing a component, use an available ejector lever to properly seat the bus connectors in the
backplane or midplane. These devices prevent accidental removal, provide proper grounding for the
system, and help to ensure that bus connectors are properly seated.
• When removing a component, use an available ejector lever to release the bus connectors from the
backplane or midplane.
• Handle carriers by available handles or edges only; avoid touching the printed circuit boards or connectors.
• Place a removed component board-side-up on an antistatic surface or in a static-shielding container. If
you plan to return the component to the factory, immediately place it in a static-shielding container.
• Avoid contact between the printed circuit boards and clothing. The wrist strap only protects components
from ESD voltages on the body; ESD voltages on clothing can still cause damage.
• Never attempt to remove the printed circuit board from the metal carrier.
Cisco Catalyst 9500X Series Switches Hardware Installation Guide
Preventing ESD Damage
25