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Network Planning
2
Remote Connections with Fiber Cable
Fiber optic technology allows for longer cabling than any other media type. A
1000BASE-SX (MMF) link can connect to a site up to 550 meters away, a
1000BASE-LX (SMF) link up to 5 km, and a 1000BASE-LH link up to 70 km. This
allows a switch to serve as a collapsed backbone, providing direct connectivity for a
widespread LAN.
A 1000BASE-SX SFP transceiver can be used for a high-speed connection between
floors in the same building and a 1000BASE-LX SFP transceiver can be used for
core connections between buildings in a campus setting. And for long-haul
connections, a 1000BASE-LH SFP transceiver can be used to reach another site up
to 70 kilometers away.
The figure below illustrates the switch connecting multiple segments with fiber cable.
Figure 2-3 Remote Connections with Fiber Cable
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