20CHAPTER 2: INSTALLING THE ETHERNET POWER SOURCE AND END DEVICES

Choosing a

The EPS is suitable for an office environment. It can either be

Suitable Site

rack-mounted in a standard 19-inch equipment rack (for example, in a

 

wiring closet or equipment room) or placed free-standing on a desk,

 

table, or counter. Both the 12-port and 24-port EPS packages (3C10220

 

and 3C10222 respectively) contain a rack-mounting kit with two

 

mounting brackets and six screws.

When you select a site for the EPS:

Always follow the appropriate configuration practices for Fast Ethernet, including the 100-meter limit on total cable length.

Locate the EPS so that you can connect cables easily.

Locate cables away from sources of electrical noise such as:

Radios, transmitters, or broadband amplifiers

Power lines

Fluorescent lighting fixtures

Make sure that no water or moisture can enter the EPS case. The unit is not designed for outdoor use.

Make sure that air can flow freely on all sides of the EPS for proper cooling. 3Com recommends that you provide a minimum of 25 mm (1 in.) clearance on each side of the unit.

If you use more than one EPS and place them on a table or desk, do not place more than four units in a single stack. If you mount multiple EPS units in a rack, this limit does not apply.

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3Com 3C10220 manual Choosing a, Suitable Site