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26 CHAPTER 2: INSTALLING THE SWITCH
Inserting an SFP
Transceiver
To be recognized as valid, the SFP transceiver must have the following
characteristics:
■ 1000BASE-SX SFP transceiver
Use this transceiver to connect the Switch directly to a multimode
fiber-optic cable.
■ 1000BASE-LX SFP transceiver
Use this transceiver to connect the Switch directly to a single-mode
fiber-optic cable or to multimode fiber using a conditioned launch
cable.
■ 1000BASE-LH70 SFP transceiver
Use this transceiver to connect the Switch directly to a single-mode
fiber-optic cable.
■ 1000BASE-T SFP transceiver
This transceiver uses Category 5 copper cabling with RJ-45 connectors
and supports segment lengths of up to 100 m (328 ft).
If the SFP transceiver is faulty, it will not operate within the Switch. See
“Solving Hardware Problems” on page 49.
Use of non-3Com SFPs is not recommended. If the SFP transceiver is
invalid it will not be recognized by the Switch.
Use the following sequence of steps to activate the SFP ports:
1 The SFP transceiver is keyed and there is only one way in which it can be
installed correctly. It is not necessary to power-down your Switch.
2 Hold the transceiver so that the connector is toward you and the product
label is visible, as shown in
Figure 7. Ensure the wire release lever is closed
(in the upright position).
3 Gently slide the transceiver into the SFP port until it clicks.
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.
4 Remove the plastic protective cover if fitted.
5 Use the appropriate cable to connect the transceiver to a suitable device.
DUA1730-0AAA03.book Page 26 Thursday, November 17, 2005 12:17 PM