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Ethernet Considerations

Chapter 9, "Discovering Wired Network Requirements"). You can resolve this issue by using a combination of fiber converters and a power injector.

Figure 12-16 shows a scheme that uses both PoE and fiber. In this particular example, the Ethernet switch is Cat 5 only and feeds an Ethernet-to-fiber converter placed in the same location as the switch. The other end of the fiber cable is located where there is AC power. This location must also be within 100 meters of the AP. At this location, the AC is fed to both the fiber converter and the power injector. From here, Cat 5 cable connects to the AP, carrying the necessary PoE as well as Ethernet. If the Ethernet switch supports fiber directly, you can eliminate one fiber converter.

Some vendors now offer a fiber injector. It combines the Ethernet-to-fiber converter and the power injector in a single package, making the installation even simpler.