fiber to the curb/pole/building overview
One application of the Novera's WDM-PON technology is to solve the transmission distance and speed limitations of current copper based access networks. By bringing optical fiber close to the subscriber location, we can provide a high performance and low-cost access solution. The optimum network architecture depends on the demographic features. In a residential area, a telephone pole is a good candidate for the placement of the ONU since it does not require any additional space on the ground and can be easily feed by electrical power. The ONU can also be installed at a curb or on the wall of a building.
FTTC using a WDM-PON architecture.
As shown in the figure above, our FTTC system is composed of an optical line terminal (OLT) in the central office (CO), a fiber optic distribution network including a passive remote node (RN), and optical network units (ONU). The passive remote node can be located in a manhole, hand-hole or any other location near the subscribers and does not require any electrical power supply. Only a single fiber is used for the feeder fiber from the central office to the passive remote node. Since the optical architecture is a WDM-PON, the signal between the central office and each pole is carried on an unique wavelength. The ONU has the functionality of a conventional digital switch and unshielded twisted pair (UTP) cable is used to connect subscribers to each pole. Each subscriber can enjoy high-speed internet service with speeds of up to 100 Mb/s.
Important advantages of Novera's FTTC WDM-PON solution include wavelength independent ONUs and reduced feeder fiber usage from the central office.
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