Site Power Requirements And Heat Dissipation - Cisco 4500 Series Installation Manual

Site Power Requirements and Heat Dissipation

Caution
Site Power Requirements and Heat Dissipation
Catalyst 4500 Series Switches Installation Guide
2-4
When removing a component, use any available ejector levers or captive
•
installation screws 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.
•
For safety, periodically check the resistance value of the antistatic strap. The
measurement should be between 1 and 10 megohm (Mohm).
This section provides module power requirements and heat dissipation
specifications for the Catalyst 4500 series switches. You should verify site power
before you install the switch.
For more information about power management and planning, refer to the
"Environmental Monitoring and Power Management" chapter in the Catalyst
4500 Series Switch Cisco IOS Software Configuration Guide version appropriate
for your software.
Knowing the power requirements is useful for planning the power distribution
system needed to support the switches. You should consider the heat dissipation
specifications when estimating the air-conditioning requirements for an
installation. For all Catalyst 4500 series switches, supervisor engines, and
switching modules in AC or DC environments see the Catalyst 4500 Series
Module Installation Guide at:
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat4000/hw_doc/mod_inst
/0aspecs.htm#wp1012188.
Chapter 2 Preparing for Installation
78-14409-08