Cisco 3550-12T Hardware Installation Guide - Page 33

Chapter 2 Switch Installation Preparing for Installation 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 Warning Before performing any of the following procedures, ensure that power is removed from the DC circuit. Statement 1003 Warning Class 1 laser product. Statement 1008 Warning An exposed wire lead from a DC-input power source can conduct harmful levels of electricity. Be sure that no exposed portion of the DC-input power source wire extends from the terminal block plug. Statement 122 Warning Voltages that present a shock hazard can exist on inline power circuits if interconnections are made by using uninsulated exposed metal contacts, conductors, or terminals. Avoid using such interconnection methods unless the exposed metal parts are in a restricted access location and users and service people who are authorized to access the location are made aware of the hazard. A restricted access area can be accessed only through the use of a special tool, lock and key, or other means of security. Statement 1072 Warning Attach only the Cisco RPS (model PWR300-AC-RPS-N1) to the RPS receptacle. Statement 100B Warning Attach only the Cisco RPS (model PWR675-AC-RPS-N1) to the RPS receptacle. Statement 100C OL-6155-01 Catalyst 3550 Switch Hardware Installation Guide 2-3