3Com Baseline 2226-PWR Plus User Manual

Also see for 3C16475BS: Datasheet

Contents

Supplying Power to the Switch 17Figure 2 Inserting the Screws4 Repeat the two previous steps for the other side ofthe unit.5 Insert the unit into the 19-inch rack and secure withsuitable screws (not provided). Ensure that the venti-lation holes are not obstructed.6 Reconnect the network cables.Placing Units On Top of Each OtherIf the Switch units are free-standing, up to four unitscan be placed one on top of the other. If you aremixing a variety of Baseline and SuperStack units, thesmaller units must be positioned at the top.If you are placing Switch units one on top of theother, you must use the self-adhesive rubber padssupplied. Apply the pads to the underside of eachSwitch, sticking one in the marked area at each cor-ner. Place the Switch units on top of each other,ensuring that the pads of the upper unit line up withthe recesses of the lower unit.Supplying Power to the SwitchPower problems can be the cause of serious failuresand downtime in your network. Ensure that thepower input to your system is clean and free fromsags and surges to avoid unforeseen network out-ages. 3Com recommends that you install power con-ditioning, especially in areas prone to black outs,power dips and electrical storms.The unit is intended to be grounded. Ensure it is con-nected to earth ground during normal use. Installingproper grounding helps to avoid damage from light-ning and power surges.Before powering on the Switch, verify that networkcables and the power cable are securely connected.CAUTION: The Switch has no ON/OFF switch; theonly method of connecting or disconnecting mainpower is by connecting or disconnecting the powercord.To power on the Switch:1 Plug the power cord into the power socket on therear panel of the Switch. Refer to “(9) Power Supply”on page 12 for more information.2 Plug the other end of the power cord into a poweroutlet.