Edge-Core ES4524D, Installation Manual, Page: 28 / 64

2-4
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
... ...
Headquarters
1000BASE-LX SMF
(5 kilometers)
Remote Switch
1000BASE-SX MMF
(500 meters)
Remote Switch
Server Farm
...
Warehouse
Research & Development
1000BASE-LX SMF
(5 kilometers)
10/100/1000 Mbps Segments
...
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Power
RPS
Diag
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ES4524D
Console
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Power
RPS
Diag
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ES4524D
Console