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Catalyst 2950 Desktop Switch Hardware Installation Guide
78-11157-02
Chapter 2 Installation
Preparing for Installation
Warning
The device is designed to work with TN power systems.
Warning
When installing the unit, always make the ground connection first and
disconnect it last.
Warning
This product relies on the building’s installation for short-circuit
(overcurrent) protection. Ensure that a fuse or circuit breaker no larger than
120 VAC, 15A U.S. (240 VAC, 10A international) is used on the phase
conductors (all current-carrying conductors).
Warning
This equipment is intended to be grounded. Ensure that the host is
connected to earth ground during normal use.
Warning
Care must be given to connecting units to the supply circuit so that wiring is
not overloaded.
Warning
A voltage mismatch can cause equipment damage and may pose a fire
hazard. If the voltage indicated on the label is different from the power
outlet voltage, do not connect the chassis to that receptacle.
Warning
Do not touch the power supply when the power cord is connected. For
systems with a power switch, line voltages are present within the power
supply even when the power switch is off and the power cord is connected.
For systems without a power switch, line voltages are present within the
power supply when the power cord is connected.
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