2 Network Planning
Remote Connections with Fiber Cable
Fiber optic technology allows for longer cabling than any other media type. Using a 1000BASE-SX multimode fiber (MMF) SFP transceiver, you can run a link up to
550m. A 1000BASE-LX single-mode fiber (SMF) link can run up to 5 km. A 1000BASE-LH single-mode fiber (SMF) link can run up to 70 km. This allows the switch to serve as a collapsed backbone, providing direct connectivity for a widespread LAN.
1000BASE-LX or 1000BASE-LH SFP transceivers can be used to interconnect remote network segments, or can be used to provide a link to other buildings in a campus setting. 1000BASE-SX SFP transceivers can be used for Gigabit fiber connections between floors in the same building.
The figure below illustrates this switch connecting multiple segments with fiber cable.
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 |
1 | | | | | | | | | | | 11 | 13 | | | | | | | | | | | | 23 |
Console | | | | | | | | | | | | | | | | | | | | | | | | |
2 | | | | | | | | | | | 12 | 14 | | | | | | | | | | | | 24 |
| | 1000BASE-LH SMF | 1000BASE-LX SMF |
| | (70 kilometers) |
| Server Farm | (5 kilometers) |
| |
| Remote Switch | Remote Switch | |
| | 10/100 Mbps Segments | |
Figure 2-3. Remote Connections with Fiber Cable