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Figure 14 identifies the components on the front
panel of the module.
Figure 14
Front Panel of Module 3CB9RG4
To learn more about this module, refer to the
4-Port
Gigabit Ethernet Layer 3 Switching Module (GBIC)
Quick Start Guide
on the Online Manuals CD-ROM.
GBIC Transceivers
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 cable. The transceiver
connects to the network using a fiber-optic duplex
subscriber connector (SC). You can remove and
replace the transceiver with the system powered on,
which is called hot-swapping.
Figure 15
GBIC Fiber-Optic Transceiver
The following transceivers are available:
■
SX GBIC Transceiver
■
LX GBIC Transceiver
■
70-km Long Haul GBIC Transceiver
SX GBIC Transceiver
Model Number: 3CGBIC91
The 1000BASE-SX GBIC transceiver supports a direct
connection to 62.5-micron or 50-micron multimode
fiber-optic cable.
To learn more about this transceiver, refer to the
GBIC
Transceiver Installation Guide
on the Online Manuals
CD-ROM.
LX GBIC Transceiver
Model Number: 3CBGIC92
The 1000BASE-LX GBIC transceiver supports a direct
connection to single-mode fiber-optic cable, or
connection to multimode fiber through a conditioned
launch cable.
To ensure optimal performance, compatibility, and
regulatory compliance, use only conditioned launch
cables that 3Com supports. For a list of supported
conditioned launch cables, see this 3Com Web site:
http://www.3Com.com/gigabit_ethernet/gbics
To learn more about this transceiver, refer to the
GBIC
Transceiver Installation Guide
on the Online Manuals
CD-ROM.
3CB9RG4
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