3Com 3CR16709-91, 3CR16708-91 manual SFP Operation

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 The following list of approved SFP transceivers is correct at the time of Transceivers 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.