3Com CoreBuilder 9000 Installation Manual page 3

Introduction
The Gigabit Interface Converter (GBIC) ports on your system connect
to Gigabit Ethernet networks through a GBIC transceiver (Figure 1),
providing a high-speed connection over fiber-optic or copper cable.
The transceiver connects to the network using a fiber-optic duplex
subscriber connector (SC) or a RJ-45 connector. You can remove and
replace the transceiver with the system on (which is called hot-
swapping).
Figure 1 GBIC Fiber-Optic Transceiver
This Guide describes how to install the following GBIC transceivers:
1000BASE-SX GBIC (3CGBIC91)
1000BASE-LX GBIC (3CGBIC92)
1000BASE-T GBIC (3CGBIC93)
1000BASE-LH70 GBIC (3CGBIC97)
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