Choosing A Suitable Site - 3Com 3CR17561-91-US - Switch 4500 26PORT Managed 24 10/100 2 Gbe Stackable RJ45 Getting Started Manual

Choosing a Suitable
Site
The Switch is suited for use on a desktop, either free standing or
mounted in a standard 19-inch equipment rack. Alternatively, the Switch
can be mounted in a wiring closet or equipment room. A rack-mounting
kit containing two mounting brackets is supplied with the Switch.
CAUTION: Ensure that the ventilation holes are not obstructed.
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
25mm (1in.) clearance.
Air temperature around the Switch does not exceed 40
■
If the Switch is installed in a 19-inch rack or closed assembly its local air
temperature may be greater than room ambient temperature.
The air is as free from dust as possible.
■
The unit is installed in a clean, air conditioned environment.
■
No more than eight Switch units are placed on top of one another, if
■
the units are free-standing.
The Switch is situated away from sources of conductive (electrical)
■
dust, for example laser printers.
The AC supply used by the Switch is separate to that used by units
■
that generate high levels of AC noise, for example air conditioning
units and laser printers.

Choosing a Suitable Site

(104
°C
25
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