3Com Baseline 2426-PWR Plus User Manual

Also see for 2426-PWR - Baseline Switch Plus: Product guide Installation and user guide User guide Release note

Contents

16 I NSTALLING THE S WITCHAlternatively, the Switch can be rack-mounted in awiring closet or equipment room. A mounting kit,containing two mounting brackets and four screws, issupplied with the Switch.When deciding where to position the Switch, ensurethat:■ It is accessible and cables can be connected easily.■ Cabling is away from sources of electrical noise.These include lift shafts, microwave ovens, and airconditioning units. Electromagnetic fields caninterfere with the signals on copper cabling andintroduce errors, therefore slowing down yournetwork.■ Water or moisture cannot enter the case of the unit.■ Air flow around the unit and through the vents onthe side of the case is not restricted (3Comrecommends that you provide a minimum of 25 mm(1 in.) clearance).■ The air is as free from dust as possible.■ Temperature operating limits are not likely to beexceeded. It is recommended that the unit is installedin a clean, air conditioned environment.It is always good practice to wear an anti-static wriststrap when installing network equipment, connected toa ground point. If one is not available, try to keep incontact with a grounded rack and avoid touching theunit's ports and connectors, if possible. Static dischargecan cause reliability problems in your equipment.Rack-Mounting or Free-StandingThe unit can be mounted in a 19-inch equipment rackusing the mounting kit or it can be free standing. Donot place objects on top of the unit or stack.CAUTION: If installing the Switch in a free-standingstack of different size Baseline or Superstack 3 units, thesmaller units must be installed above the larger ones.Do not have a free-standing stack of more than sixunits.Using the Mounting KitThe Switch is supplied with two mounting brackets andfour screws. These are used for rack mounting the unit.When mounting the unit, you should take note of theguidelines given in “Positioning the Switch” onpage 15.The Switch is 1U (1.7 inches) high and will fit in astandard 19-inch rack.CAUTION: Disconnect all cables from the unit beforecontinuing. Remove the self-adhesive pads from theunderside of unit, if already fitted.To rack-mount the Switch:1 Place the unit the right way up on a hard, flat surfacewith the front facing towards you.2 Locate a mounting bracket over the mounting holes onone side of the unit.