20INSTALLING THE SWITCH

1000BASE-LX SFP transceiver

Use this transceiver to connect the Switch directly to a single mode fiber-optic cable or to multi- mode fiber using a conditioned launch cable.

If the SFP transceiver is faulty, it will not operate within the Switch. See “Troubleshooting” on page 73.

To activate the SFP port:

1Hold the transceiver so that the fiber connector is toward you and the product label is visible, as shown in Figure 3. Ensure the wire release lever is closed (in the upright position).

Figure 3 Inserting an SFP Transceiver

2Gently slide the transceiver into the SFP slot until it clicks into place.

CAUTION: SFP transceivers are keyed and can be properly inserted only one way. If the transceiver does not click when you insert it, remove it, turn it over, and reinsert it.

3Remove the plastic protective cover, if fitted.

4Connect the fiber cable.

5Attach a male duplex LC connector on the network cable into the duplex LC connector on the transceiver.

6Connect the other end of the cable to a device fitted with an appropriate Gigabit Ethernet connection.

7Check the Module Active LEDs on the front of the Switch to ensure that the SFP transceiver is operating correctly.

Removing an SFP Transceiver

Removing an SFP transceiver does not require powering off the Switch.

To remove an SFP transceiver:

1Disconnect the cable from the transceiver.

2Move the wire release lever downwards until it is pointing toward you.

3Pull the wire release lever toward you to release the catch mechanism.

The SFP transceiver should slide out easily.

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3Com 3C16491 manual Removing an SFP Transceiver, Inserting an SFP Transceiver