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Package Contents; Choosing A Suitable Site - 3Com 4900 (3C17700) Getting Started Manual

Superstack 3 4900 series.
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2: I

Package Contents

Choosing a Suitable
Switch unit
This Guide
Management Quick Reference Guide
Release Notes
Warranty Flyer
Power Cord
2 x securing brackets
6 x screws
4 x rubber feet
The Switch is suited for use in an internal wiring closet, a network room,
or telecommunications room, where it can be mounted in a standard
19-inch equipment rack, or free-standing.
CAUTION: Ensure that the ventilation holes are not obstructed.
To ensure this product provides optimum performance, high speed fans
are used to provide ventilation. These fans have a high audible output.
When deciding where to position the Switch, ensure that:
Cabling is located away from:
sources of electrical noise such as radios, transmitters and
broadband amplifiers.
power lines and fluorescent lighting fixtures.
The Switch is accessible and cables can be connected easily.
Water or moisture cannot enter the case of the Switch.
Air flow is not restricted around the Switch or through the vents in the
side of the Switch. 3Com recommends that you provide a minimum of
25 mm (1 in.) clearance.
Air temperature around the Switch does not exceed 40 °C (104
If the Switch is installed in a 19-inch rack or closed assembly its local air
temperature may be greater than room ambient temperature.


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