SFP Operation 31
If there is evidence of a problem, see “Solving Problems Indicated by
LEDs” on page 62 for a list of suggested solutions.
CAUTION: The Switch has no ON/OFF switch; the only method of
connecting or disconnecting mains power is by connecting or
disconnecting the power cord.
SFP Operation The following section describes how to insert an SFP transceiver into an
SFP port.
SFP transceivers are hot-insertable and hot-swappable. You can remove
them from and insert them into any SFP port without having to power
down the Switch.
You will need to install an SFP transceiver if you wish to create an XRN
Distributed Fabric as an SFP port is used to interconnect the Switches.
Approved SFP
Transceivers
The following list of approved Gigabit Ethernet SFP transceivers is correct
at the time of publication.
■ 3CSFP91 SFP (1000BASE-SX)
■ 3CSFP92 SFP (1000BASE-LX)
■ 3CSFP97 SFP (1000BASE-LH70)
■ 3CSFP93 SFP (1000BASE-T)
To access the latest list of approved SFP transceivers for the Switch on the
3Com Corporation World Wide Web site, enter this URL into your
internet browser:
http://www.3com.com
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 Gigabit Ethernet SFP ports on the
Switch directly to a multi-mode fiber-optic cable.
■ 1000BASE-LX SFP transceiver
DUA1715-0AAA02.book Page 31 Wednesday, March 23, 2005 11:17 AM
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