3Com Baseline 2816 User Manual

Also see for 3CBLUG16A - Baseline Switch 2816: User guide User guide

Contents

3Com Baseline 2816 User Manual Manual pdf 16 page image

16 CHAPTER 2: I NSTALLING THE SWITCHApply the pads to the underside of each Switch, stickingone in the marked area at each corner.Place the Switch units on top of each other, ensuringthat the pads of the upper unit line up with the recessesof the lower unit.Supplying Power to the SwitchPower problems can be the cause of serious failures anddowntime in your network. Ensure that the power inputto your system is clean and free from sags and surges toavoid unforeseen network outages. We recommend thatyou install power conditioning, especially in areas proneto black outs, power dips and electrical storms.The unit is intended to be grounded. Ensure it isconnected to earth ground during normal use. Installingproper grounding helps to avoid damage from lightningand power surges.Before powering on the Switch, verify that the networkcables and the power cable are securely connected.CAUTION: The Switch has no ON/OFF switch. The onlyway to power on and power off the Switch is byconnecting and disconnecting the power cord. This iscalled “power cycling”.To power on the Switch:1 Plug the power cord into the power socket on the rearpanel of the Switch. Refer to “(8) Power Supply” onpage 11 for more information.2 Plug the other end of the power cord into a poweroutlet.When the Switch is powered on, the Power LED lightsup. If the Power LED does not light up, refer to “(6)Power LED” on page 10 for more information.Checking for Correct OperationAfter you power on the Switch, it automaticallyperforms a power-on self-test (POST). During POST, thePower LED on the front panel of the Switch flashesgreen.When POST is complete, the Power LED turns green. Ifthe Power LED turns yellow after POST, it means thatPOST failed and the Switch has entered fail-safe mode.Table 5Table 5 summarizes the possible colors for thePower LED after POST.Table 5 Possible Power LED Colors After POSTColor StateGreen The unit is powered on and ready for use