This optical setup was recently used in the state of North Dakota in the United States. A similar setup is also present in the South American countries of Colombia and Venezuela. For this application communication needs to be established between remote sites in arid, mountainous regions. Microwave radio transmission is preferred because of the lack of fiber optic infrastructure and the relative ease of setting up a wireless network.
Loop’s products involved in this installation include the AM3440 and the O9500R. At sites located closer to population centers the O9500R was deployed to connect with existing fiber optic infrastructure. At these locations the O9500R was also connected to a radio transmission tower that sent out long wavelength microwaves. These microwaves carried several E1 signals, while the optical links between the O9500R can carry up to 160 E1 signals.
At the remote site, another radio antenna/tower captured the microwave signal and transformed it into an E1 electrical line. The AM3440 at this end demuxed the signal and provided low speed access of many different types such as FXS/FXO, E&M, RS232, and V.35.
The NMS system was located in Bismarck, the state capital of North Dakota. Backup servers for the NMS were located in Mandan, a city near Bismarck. The customer was an oil enterprise drilling in North Dakota.
Because of Loop Telecom’s products, the business customer was able to communicate between remote sites and with the company headquarters. Loop's product worked seamlessly with the microwave radio towers to allow long range communication across rural areas and last-mile low speed access with traditional interfaces.