Cisco 2900 SERIES XL - Manual (Page 44)

Chapter 2 Installation
Preparing for Installation
2-2
Catalyst 2900 Series XL Hardware Installation Guide
78-6461-03
Warning Only trained and qualified personnel should be allowed to install or replace
this equipment.
Warning Read the installation instructions before you connect the system to its
power source.
Warning Before working on equipment that is connected to power lines, remove
jewelry (including rings, necklaces, and watches). Metal objects will heat
up when connected to power and ground and can cause serious burns or
weld the metal object to the terminals.
Warning Do not stack the chassis on any other equipment. If the chassis falls, it can
cause severe bodily injury and equipment damage.
Warning The plug-socket combination must be accessible at all times because it
serves as the main disconnecting device.
Warning To prevent the switch from overheating, do not operate it in an area that
exceeds the maximum recommended ambient temperature of 113×F (45×C).
To prevent airflow restriction, allow at least 3 inches (7.6 cm) of clearance
around the ventilation openings.
Warning The device is designed to work with TN power systems.
Warning When installing the unit, the ground connection must always be made first
and disconnected last.