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User Guide for the Catalyst Express 520 Switches
OL-12761-02
Chapter 3 Installing the Switch
Installation Guidelines
Warning
When installing or replacing the unit, the ground connection must always be
made first and disconnected last.
Statement 1046
Warning
Voltages that present a shock hazard may exist on Power over Ethernet (PoE)
circuits if interconnections are made using uninsulated exposed metal
contacts, conductors, or terminals. Avoid using such interconnection methods,
unless the exposed metal parts are located within a restricted access location
and users and service people who are authorized within the restricted access
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
No user-serviceable parts inside. Do not open.
Statement 1073
Warning
Installation of the equipment must comply with local and national electrical
codes.
Statement 1074
Warning
Hot surface.
Statement 1079
Installation Guidelines
When determining where to place the switch, make sure to observe these
requirements and guidelines. Use these requirements and guidelines with the
information in Appendix A, “Reference.”
• Temperature around the unit does not exceed 113°F (45°C).
Note If the switch is installed in a closed environment or in a multirack
assembly, the temperature around it might be greater than normal
room temperature.
