Cisco Catalyst 2955 Series, Hardware Installation Manual

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3-3
Catalyst 2955 Hardware Installation Guide
78-14944-03
Chapter 3 Installation
Preparing for Installation
Warning This equipment is intended for use in a Pollution Degree 2 industrial
environment, in overvoltage Category II applications (as defined in IEC
publication 60664-1), and at altitudes up to 2000 meters without derating.
Statement 1068
Warning
This equipment is supplied as “open type” equipment. It must be mounted
within an enclosure that is suitably designed for those specific environmental
conditions that will be present and appropriately designed to prevent personal
injury resulting from accessibility to live parts. The interior of the enclosure
must be accessible only by the use of a tool.
The enclosure must meet IP 54 or NEMA type 4 minimum enclosure rating
standards.
Statement 1063
Warning
Connect the unit only to DC power source that complies with the safety
extra-low voltage (SELV) requirements in IEC 60950 based safety standards.
Statement 1033
Warning
Use twisted-pair supply wires suitable for 86°F (30°C) above surrounding
ambient temperature outside the enclosure.
Statement 1067
Warning
To prevent the switch from overheating, do not operate it in an area that
exceeds the maximum recommended ambient temperature of 140°F (60°C). To
prevent airflow restriction, allow at least 3 inches (7.6 cm) of clearance around
the ventilation openings.
Statement 17C
Warning
When installing the unit, always make the ground connection first and
disconnect it last.
Statement 42