Ethernet over Fiber Optics
Two major types of fiber used in Ethernet networks are multimode and single mode. Multimode fiber (MMF) is used for short haul applications (up to 2000 m). Examples include campus or building networks. MMF is usually driven by LED or low-power laser-based equipment. Single mode fiber (SMF) is used for longer haul applications (up to 10 km) and the equipment is laser based. SMF is generally used in metropolitan-area networks or carrier networks.
Table 1-1 compares Ethernet types over different transmission media.
Table 1-1. Comparisons of Ethernet over Various Transmission Media
|
Ethernet Type |
Media Type |
Distance Limitations (meters) |
Speed (megabits) |
Data Encoding |
|
10BASE-T |
UTP Category 3 or better |
100 |
10 |
Manchester |
|
10BASE-FX – MMF |
MMF |
2000 |
10 |
Manchester |
|
100BASE-TX |
UTP Category 5 or better |
100 |
100 |
4B/5B |
|
100BASE-FX – MMF |
MMF |
2000 |
100 |
4B/5B |
|
100BASE-FX – SMF |
SMF |
10000 |
100 |
4B/5B |
|
1000BASE-SX |
MMF |
2000 |
1000 |
8B/10B |
|
1000BASE-LX |
SMF |
5000 |
1000 |
8B/10B |
|
1000BASE-T |
UTP Category 5 or better |
100 |
1000 |
PAM 5x5 |
Sections
Comments (0 posted)
Syndication
