3com 3C16951 Bedienungsanleitung PDF herunterladen (Seite 24)

24 C

HAPTER

2: I

NSTALLING

THE

WITCH

Choosing a Suitable

Site

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

mounted 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 six 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 20.

■

The Switch is accessible and cables can be connected easily.

■

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.

Rack-mounting

The Switch is 1.5U high and fits in most standard 19-inch racks.

CAUTION: Disconnect all cables from the Switch before continuing.

Remove all self adhesive pads from the underside of the Switch if they

have been fitted.

Place the Switch the right way up on a hard flat surface, with the front

facing towards you.

Locate a mounting bracket over the mounting holes on one side of the

Switch, as shown in Figure 7

16950ua.bk Page 24 Thursday, April 29, 1999 1:28 PM

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