Cisco NCS 540 Hardware Installation Manual page 13

Safety Warnings
• When removing a component, use available ejector levers or captive installation screws, if any, to release
the bus connectors from the backplane or midplane.
• Handle components by only their handles or edges; do not touch 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.
For the safety of your equipment, periodically check the resistance value of the antistatic wrist strap. Maintain
the value between 1 and 10 Mohm.
Cisco Network Convergence System 540 Large Density Routers Hardware Installation Guide
Preventing ESD Damage
7