NETWORK PLANNING
Remote Connection with Fiber Cable
Fiber optic technology allows for longer cabling than any other media type. A 100 Mbps multimode fiber (MMF) link can run up to 2 km, and a 100 Mbps single-mode fiber (SMF) link can run as far as 20 km. A 1000BASE-SX (MMF) link can connect to a site up to 550 meters away, and a 1000BASE-ZX (SMF) link can run up to 100 km. This allows the Fast Ethernet Routing Switch to serve as a collapsed backbone, providing direct connectivity for a widespread LAN.
The 100BASE-FX (SMF) plug-in module or 1000BASE-ZX GBIC module can be used to interconnect remote network segments. While a 1000BASE-SX module can be used for a high-speed connection between floors in the same building, and a 1000BASE-LX module can be used to connect to other buildings in a campus setting.
The figure below illustrates this switch connecting multiple segments with fiber cable.
Headquarters
100BASE-FX Singlemode Module |
TX | RX |
| 1000BASE-LX SMF |
Server Farm | (5 kilometers) |
| Remote Switch |
...
Figure 2-3. Remote Connection with Fiber Cable
