LevelOne FGL-2870, Руководство по установке

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Network Planning
2
Remote Connection 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 the 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, a 1000BASE-LX SFP transciever can be used to
connect to other buildings in a campus setting, and a 1000BASE-LH SFP
transceiver can be used for a long-haul connection to a remote site.
The figure below illustrates the switch connecting multiple segments with fiber cable.
Figure 2-3. Remote Connection with Fiber Cable
... ...
Headquarters
1000BASE-LX SMF
(5 kilometers)
Remote Switch
10/100/1000 Mbps Segments
1000BASE-SX MMF
(550 meters)
Remote Switch
Server Farm