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Switch 4950 — GBIC Operation 29
Switch 4950 — GBIC
Operation
The following sections describes how to insert a GBIC transceiver into a
GBIC port on a Switch 4950.
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.
WARNING: The Switch must only be fitted with 3Com approved GBIC
transceivers, as listed below.
■ 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
The URL is case sensitive.
Inserting a GBIC
Transceiver
To be recognised as valid, the GBIC transceiver must have the following
characteristics:
■ 1000BASE-SX, 1000BASE-LX or 1000BASE-LH70 media type:
■ 1000BASE-SX GBIC transceiver
Use this transceiver to connect the Switch directly to a multimode
fiber-optic cable.
■ 1000BASE-LX GBIC 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.
■ 1000BASE-LH70 GBIC 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.