Senao International Co Ltd 2511BG2PLUS Manuale Utente

 

21 

 

Wireless point-to-point networks use technologies very similar to wireless 

LANs. A radio-based wireless point-to-point network as shown in Figure 3-7 and 

Figure  3-8  is currently the most common method for providing connectivity 

within a metropolitan area. All of these bridges have to use highly directional 

antennas to focus the signal power in a narrow beam, in order to maximizing the 

transmission distance. The actual transmission distance  of a particular product, 

depends on environment conditions and terrain. Rain, for example, causes 

resistance to the propagation of radio signals, decreasing the effective range. A 

mountainous area will also hamper the transmission range of the signals. Refer to 

Chapter 3.2 for determining how to set up the wireless bridge environment. 

 

In point-to-point configuration, a pair of bridges is set up to communicate only 

with each other.

 

In a typical point-to-point application, the  bridge acts as a data 

channel, providing a wireless link between sites separated by considerable 

distances. Actual distance attained depends on the antennas used and their 

installation. Both voice and data can be transmitted between sites. 

 

 

Figure 3-7