! When the Display Function switch is pressed in, these LEDsshow the speed status of each port:4 Power/Self Test LEDThe Power/Self test LED shows the power status of the Switch:5 Display Function SwitchThis switch affects the Status LEDs described in 2 and 3.6 Self-adhesive PadsThe unit is supplied with four self-adhesive rubber pads.You do not need to apply the pads if you intend to rackmount the unit.If the unit is to be part of a free standing stack, apply the pads toeach marked corner area on the underside of the unit. Place theunit on top of the lower unit, ensuring that the pads locate withthe recesses of the lower unit.Rear Panel Connections7 Power SupplyThe Baseline 10/100 Switch automatically adjusts to the supplyvoltage. Only use the power cord that is supplied with theBaseline 10/100 Switch.8 Socket for Redundant Power System (RPS)Only connect a 3Com SuperStack 3 Advanced RPS (3C16070,3C16071, 3C16071A or 3C16071B) to this socket. Anappropriate power module and cable is required. The connectoron the Baseline 10/100 Switch is a Type 1, 60W socket. Fordetails, follow the installation instructions in the guides thataccompany the Advanced RPS and the power module.Positioning the Baseline 10/100 SwitchCAUTION: If installing the Baseline 10/100 Switch in astack of different size SuperStack 3 units, the smallerunits must be installed above the larger ones. Do nothave a free standing stack of more than six units.When deciding where to position the Baseline 10/100 Switchensure:! It is accessible and cables can be connected easily.! Cabling is away from sources of electrical noise such asradios, transmitters and broadband amplifiers, and away frompower lines and fluorescent lighting fixtures.! Water or moisture cannot enter the case of the unit.! Air flow around the unit and through the vents in the side ofthe case is not restricted (3Com recommends that youprovide a minimum of 25 mm (1 in.) clearance).To prolong the operational life of your units:! Never stack units more than six high if free standing, andensure that cables are supported so that they do not causethe stack to fall over.! Do not place objects on top of any unit or stack.! Do not obstruct any vents at the sides of the case.Rack MountingThe Baseline 10/100 Switch can be mounted in a 19-inchequipment rack using the Mounting Kit. Refer to “Mounting KitInstructions” on page 5.Power UpUse the following sequence to power up the Baseline 10/100Switch:! Check the network connections and cables.! Connect the power supply cable to the appropriate powersocket on the rear panel of the unit; refer to 7 or 8.! Connect the plug to the power supply outlet socket andswitch on the power supply at the socket. If you are usingthe Advanced Redundant Power System, ensure it is poweredon.When the switch is powered on, the Power/Self Test LED shouldfirst flash green, then stay lit. If it does not, refer to 4.Spot ChecksAt frequent intervals you should visually check the Baseline10/100 Switch. Regular checks can give you an early warning of apossible failure; any problems can then be attended to whenthere will be least effect on users. Check that all external cablingconnections are secure and that no cables are pulled taut.If you experience any problems operating the Baseline 10/100Switch, refer to “Problem Solving” on page 5.Status MeaningGreen The link is operating at 100 Mbps.Off If the link is present, it is operating at 10 Mbps.Status MeaningGreen The unit is powered on and ready for use.Off The unit is not receiving power: Check the power cord is connected correctly. If the unit still does not operate, contact your supplier.Out This is the normal position of the switch.The Status LEDs show the Activity and Link Status ofeach port.In When the switch is pressed in, the Status LEDs showthe Duplex and Speed Status of each port. The switchreturns to the out position when released.I NSTALLING THE SWITCH!3