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Installing and Connecting a GBIC Module 2-7
Installing and
Connecting a
GBIC Module
The gigabit interface connector (GBIC) port on the rear panel of the
Hub 1000 SX chassis accepts an optional 3Com GBIC module that
permits connection to a Gigabit Ethernet device. GBIC modules must
be ordered separately in either single-packs or six-packs.
By inserting the appropriate GBIC module in the hub’s rear-panel uplink
port, you can use various types of cabling to connect the hub to LAN
devices. For example, you can use the 1000BASE-LX module to reach
much greater distances than is possible with 1000BASE-SX connections.
A sample GBIC module appears in Figure 2-4. Table 2-3 lists the types of
GBIC modules available from 3Com.
Figure 2-4 Sample GBIC Module
Table 2-3 GBIC Modules
Module Type
3Com
Part Number
Connector
Type
Cable Type
Maximum Cable
Length (Meters)
1000BASE-CX 3CGBIC4
3CGBIC4-6PK
HSSDC Shielded balanced twinaxial STP
(coaxial jumper)
25
1000BASE-LX 3CGBIC2
3CGBIC2-6PK
SC Long-wavelength fiber-optic
(1300 nm):
62.5/125 µ MMF
50/125 µ MMF
SMF
440
550
3000
1000BASE-SX 3CGBIC1
3CGBIC1-6PK
SC Short-wavelength fiber-optic
(850 nm):
62.5/125 µ MMF
50/125 µ MMF
260
550