Installation guide

3-3
Catalyst 3550 Multilayer Switch Hardware Installation Guide
78-11358-06
Chapter 3 Switch Installation
Preparing for Installation
Warning When installing or replacing the unit, the ground connection must always be
made first and disconnected last. Statement 1046
Warning Do not work on the system or connect or disconnect cables during periods of
lightning activity. Statement 1001
Warning Ultimate disposal of this product should be handled according to all national
laws and regulations. Statement 1040
Warning If a redundant power system (RPS) is not connected to the switch, install an RPS
connector cover on the back of the switch. Statement 265
Warning To comply with safety regulations, mount switches on a wall with the front
panel facing up. Statement 266
Warning The Catalyst 3550-24-DC contains no field-replaceable units (FRUs). Do not open
the chassis or attempt to remove or replace any components. For information
about obtaining service for this unit, contact your reseller or Cisco sales
representative. Statement 121B
Warning This unit is intended for installation in restricted access areas. A restricted
access area can be accessed only through the use of a special tool, lock and
key, or other means of security. Statement 1017
Warning Ethernet cables must be shielded when used in a central office environment.
Statement 171