3Com 3CR16708-91 Getting Started Guide - Page 29

SFP Operation, Approved SFP Transceivers, Inserting an SFP Transceiver, Approved SFP, Transceivers

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SFP Operation 29 to a grounded port before connecting network equipment. If you do not, the cable's Electrostatic Discharge (ESD) may damage the Switch's port. You can create a grounded port by connecting all wires at one end of a UTP cable to an earth ground point, and the other end to a female RJ-45 connector located, for example, on a Switch rack or patch panel. The RJ-45 connector is now a grounded port. SFP Operation The following section describes the use of an SFP transceiver in your Switch. 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. Approved SFP Transceivers The following list of approved SFP transceivers is correct at the time of publication. ■ 3CSFP91 SFP (1000BASE-SX) ■ 3CSFP92 SFP (1000BASE-LX) ■ 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 To be recognized as valid, the SFP transceiver must have the following Transceiver characteristics: ■ 1000BASE-SX or 1000BASE-LX media type: ■ 1000BASE-SX SFP transceiver Use this transceiver to connect the Switch directly to a multimode fiber-optic cable with fiber LC connectors. ■ 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 with fiber LC connectors.

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SFP Operation
29
to a grounded port before connecting network equipment. If you do not,
the cable’s Electrostatic Discharge (ESD) may damage the Switch’s port.
You can create a grounded port by connecting all wires at one end of a
UTP cable to an earth ground point, and the other end to a female RJ-45
connector located, for example, on a Switch rack or patch panel. The
RJ-45 connector is now a grounded port.
SFP Operation
The following section describes the use of an SFP transceiver in your
Switch.
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.
Approved SFP
Transceivers
The following list of approved SFP transceivers is correct at the time of
publication.
■
3CSFP91 SFP (1000BASE-SX)
■
3CSFP92 SFP (1000BASE-LX)
■
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:
Inserting an SFP
Transceiver
To be recognized as valid, the SFP transceiver must have the following
characteristics:
■
1000BASE-SX or 1000BASE-LX media type:
■
1000BASE-SX SFP transceiver
Use this transceiver to connect the Switch directly to a multimode
fiber-optic cable with fiber LC connectors.
■
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 with fiber LC connectors.