3Com 3C16476BS-US User Guide - Page 19

not click when you insert it, remove it, turn it over, and then re-insert it. 3 Remove the plastic protective cover, if fitted. 4 Connect the fiber cable. 5 The transceiver connects to the network using a duplex LC connector. Attach a male duplex LC connector on the network cable into the duplex LC connector on the transceiver. 6 Connect the other end of the cable to a device fitted with an appropriate Gigabit Ethernet connection. 7 Check the Module Active LEDs on the front of the Switch to ensure that it is operating correctly. Removing an SFP Transceiver Removing an SFP transceiver does not require powering off the Switch. To remove an SFP transceiver: 1 Disconnect the cable from the transceiver. 2 Move the wire release lever downwards until it is pointing toward you. 3 Pull the wire release lever toward you to release the catch mechanism. The SFP transceiver should slide out easily. Performing Spot Checks At frequent intervals, you should visually check the Switch. Regular checks can give you an early warning Performing Spot Checks 19 of a possible failure; any problems can then be attended to when there will be least effect on users. 3Com recommends periodically checking the items listed in Table 7. Table 7 Items to Check Item Verify That Cabling All external cabling connections are secure and that no cables are pulled taut Cooling fan Where possible, check that the cooling fan is operating by listening to the unit. The fan is fitted near to the front right hand side of the unit (when viewed from the front). If you experience any problems operating the Switch, refer to "Troubleshooting" starting on page 43.