Cisco Catalyst CW9800H1 - Chassis-Lifting Guidelines; Electrical Safety

• Handle line cards by faceplates and carrier edges only; avoid touching the card components or connector
pins.
• When removing a module, place the removed module component-side-up on an antistatic surface or in
a static-shielding bag. If the module is to be returned to the factory, immediately place it in a
static-shielding bag.
• Avoid contact between the modules and clothing. The wrist strap protects the card from ESD voltages
only on the body; ESD voltages on clothing can still cause damage.
• When transporting a sensitive component, place it in an antistatic container or packaging.
• Handle all sensitive components in a static-safe area. If possible, use antistatic floor pads and workbench
pads.
For safety, periodically check the resistance value of the antistatic strap. The measurement should be between
1 and 10 ohms.
Caution
Always tighten the captive installation screws on all the system components when you are installing them.
These screws prevent accidental removal of the module, provide proper grounding for the system, and help
ensure that the bus connectors are properly seated in the backplane.
Caution
Electrical Safety
All the system components are hot-swappable. They are designed to be removed and replaced while the system
is operating, without presenting an electrical hazard or damage to the system.
Follow these basic guidelines when you are working with any electrical equipment:
• Before beginning any procedures requiring access to the chassis interior, locate the emergency power-off
switch for the room in which you are working.
• Disconnect all power and external cables before installing or removing a chassis.
• Never assume that power has been disconnected from a circuit; always check.
• Do not perform any action that creates a potential hazard to people or makes the equipment unsafe. Never
install equipment that appears damaged.
• Carefully examine your work area for possible hazards such as moist floors, ungrounded power extension
cables, and missing safety grounds.
Chassis-Lifting Guidelines
The chassis is not intended to be moved frequently. Before you install the system, ensure that your site is
properly prepared so that you can avoid having to move the chassis later to accommodate power sources and
network connections.
Cisco Catalyst CW9800H1 and CW9800H2 Wireless Controllers Hardware Installation Guide
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Preparing Your Site for Installation
Electrical Safety