3com 4070 Quick Setup Guide
SFP Operation
33
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:
3Com Corporation World Wide Web site, enter this URL into your
internet browser:
http://www.3com.com
Inserting an SFP
Transceiver
To be recognised as valid, the SFP transceiver must have the following
characteristics:
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.
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.
fiber-optic cable or to multimode fiber using a conditioned launch
cable.
■
Fiber LC connector
If the SFP transceiver is faulty, it will not operate within the Switch. See
3Com recommends that you only use SFPs supplied by 3Com. If the SFP
transceiver is invalid it will not be recognised by the Switch.
transceiver is invalid it will not be recognised by the Switch.
Use the following sequence of steps to activate the SFP ports:
1 Hold the transceiver so that the fiber connector is toward you and the
product label is visible, as shown in
2 Gently slide the transceiver into the SFP port 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.
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. Ensure the wire release lever
is closed (in the upright position).
4 Connect the fiber cable.
DUA1770-9AAA04.book Page 33 Monday, April 14, 2003 11:33 AM