3com 2816 ユーザーガイド
18
C
HAPTER
2: I
NSTALLING
THE
S
WITCH
2
Connect the other end to the appropriate RJ-45 port on
the connecting device.
the connecting device.
For 1000BASE-T operation, 3Com recommends using
Category 5e or 6 cables.
Category 5e or 6 cables.
Using SFP Transceivers
The following sections describe how to insert and
remove an SFP transceiver from an SFP slot.
remove an SFP transceiver from an SFP slot.
SFP transceivers are hot-insertable and hot-swappable.
You can remove them from and insert them into any
SFP port without having to power off the Switch.
You can remove them from and insert them into any
SFP port without having to power off the Switch.
Approved SFP Transceivers
The following list of approved SFP transceivers is correct
at the time of publication:
at the time of publication:
■
3CSFP91 SFP (SX)
■
3CSFP92 SFP (LX)
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:
the Switch on the 3Com Corporation World Wide Web
site, enter this URL into your Internet browser:
www.3com.com
3Com recommends using 3Com SFPs on the Switch. If
you insert an SFP transceiver that is not supported, the
Switch will not recognize it.
you insert an SFP transceiver that is not supported, the
Switch will not recognize it.
Inserting an SFP Transceiver
To be recognized as valid, the SFP transceiver must be
one of the following:
one of the following:
■
1000BASE-SX SFP transceiver – Use this transceiver
to connect the Switch directly to a multimedia
fiber-optic cable.
to connect the Switch directly to a multimedia
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.
to connect the Switch directly to a single-mode
fiber-optic cable or to multimode fiber using a
conditioned launch cable.
If the SFP transceiver is faulty, it will not operate within
the Switch. See “Troubleshooting” starting on page 49.
the Switch. See “Troubleshooting” starting on page 49.
To insert an SFP transceiver:
1
Hold the transceiver so that the fiber connector is
toward you and the product label is visible, as shown in
Figure 4. Ensure the wire release lever is closed (in the
upright position).
toward you and the product label is visible, as shown in
Figure 4. Ensure the wire release lever is closed (in the
upright position).