3Com Baseline 2226-PWR Plus User Manual

Also see for 3C16475BS: Datasheet

Contents

Physical Features 11(PD) Port powering on the front panel to indicate PoEoperation.CAUTION: The Switch supports full-duplex autone-gotiation. If the connected device does not supportautonegotiation, the Switch will operate inhalf-duplex mode (even if the attached device is oper-ating in full-duplex mode).In such a configuration, you may notice some degra-dation of network performance. 3Com recommendsthat you use devices that are capable of autonegotia-tion (and that you ensure that autonegotiation isenabled, if it is a configurable option). (see “Trouble-shooting” on page 51).(3) Module Active LEDsThe Module Active LEDs show the status of any SFPmodules that are installed.(4) Link/Activity LEDsThe Link/Activity LEDs show the link status of portsand the speed of connected devices.(5) 10/100/1000BASE-T/SFP PortsPorts 25 and 26 are combination Gigabit RJ-45 portswith shared Small Form Factor Pluggable (SFP) trans-ceiver slots. If an SFP transceiver (purchased sepa-rately) is installed in a slot and is active, the associatedRJ-45 port of the same number is disabled.The 1000BASE-T RJ-45 ports support automaticMDI/MDI-X operation, so you can usestraight-through or crossover cables for all networkconnections to workstations or servers, or to otherswitches or hubs.Status MeaningGreen Fiber SFP is inserted in the slotOff No fiber SFP is inserted in the slotStatus MeaningGreen The link is operating at 1000 MbpsYellow The link is operating at 10 or 100 MbpsFlashing Green Packets are being received or transmit-ted on the port at 1000 MbpsFlashing Yellow Packets are being received or transmit-ted on the port at 10 or 100 MbpsFlashing Yellow toGreenPort disabled or link loopback errorOff The link has not been established, eithernothing is connected to the port, orthere is a problem:■ Verify that the attached device ispowered on■ Verify that the cable or fiber is thecorrect type and is not faulty■ For fiber connections, ensure that thereceive (RX) and transmit (TX) cableconnectors are not swappedIf these checks do not identify the causeof the problem, it may be that the unitor the device connected to the port isfaulty. Contact your 3Com network sup-plier for further advice.Status Meaning