3Com 3C16986A, 3C16988A, 3C16987A, 3C16985B manual Installing the Switch

26CHAPTER 2: INSTALLING THE SWITCH

Choosing a Suitable The Switch is suited for use in an office environment where it can be

Sitemounted in a standard 19-inch equipment rack, or free standing. Alternatively, the Switch can be rack-mounted in a wiring closet or equipment room. A rack-mounting kit, containing two mounting brackets and four screws, is supplied with the Switch.

When deciding where to position the Switch, ensure that:

■You are able to meet the configuration rules detailed in “Configuration Rules for Fast Ethernet” on page 21.

■The Switch is accessible and cables can be connected easily.

■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

■Cabling is away from:

■Sources of electrical noise such as radios, transmitters and broadband amplifiers

■Power lines and fluorescent lighting fixtures

■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. We recommend that you provide a minimum of 25mm (1in.) clearance.

■No more than four Switch units are placed on top of one another, if the units are free standing.

■If used in an office environment, the switch is positioned so that any noise from the fan is not disruptive.