3com 4070 Guida All'Installazione Rapida

HAPTER

2: I

NSTALLING

THE

WITCH

connector located, for example, on a Switch rack or patch panel. The
RJ-45 connector is now a grounded port.

Choosing the correct

Fiber cables

Choose from the following cable options:

■

The 1000BASE-SX ports can be connected to multimode fiber cables
only.

■

The 1000BASE-LX and LH70 ports use multimode or single-mode fiber
optic cables.

CAUTION: 3Com recommends that you use MT-RJ cables that do not
contain alignment pins as these are provided by the fiber socket. Cables
that contain alignment pins can cause damage to your Switch.

For detailed information on fiber cable specifications, refer to the
Implementation Guide that accompanies your Switch.

If you wish to connect to a fiber port with a different type of connector,
for example, SC or ST please contact your network supplier for a suitable
patch cable.

GBIC Operation

The following sections describes how to insert a GBIC transceiver into a
GBIC port.

GBIC transceivers are hot-insertable and hot-swappable. You can remove
them from and insert then into any GBIC port without having to power
down the Switch.

Approved GBIC

Transceivers

The following list of approved GBIC transceivers is correct at the time of
publication.

■

3CGBIC91 GBIC (SX)

■

3CGBIC92 GBIC (LX)

■

3CGBIC97 GBIC (LH70)

To access the latest list of approved GBIC transceivers for the Switch on
the 3Com Corporation World Wide Web site, enter this URL into your
internet browser:

http://www.3com.com

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