3com 2226 PLUS Manuale Utente

Pagina di 94
20
I
NSTALLING
 
THE
 S
WITCH
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:
1
Hold 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
2
Gently 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.
3
Remove the plastic protective cover, if fitted.
4
Connect the fiber cable.
5
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 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:
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.