TV and Data over fiber networks

FTTH (Fiber To The Home)covers a significant number of standards and solutions designed to provide services to homes over optical fiber, thus doing away with traditional coaxial cable or telephone pairs.

The FTTH standards cover PONs (Passive Optical Networks). On these networks, a shared fiber-optic network architecture is defined in which, from a single OLT (Optical Line Terminal), service can be provides to dozens of users (ONUs) over a single-fiber network with a tree-branch topology. 

The previous diagram shows the ONU and the OLT, which are the active user and operator devices, respectively. The figure also includes the optical splitters. These passive elements are responsible for splitting the optical signal among the different branches of the PON.

As a manufacturer of fiber-optic cable and equipment, TELNET Redes Inteligentes S.A. provides complete FTTH solutions covering everything from outdoor and indoor optical fiber, to the head end and user equipment, including all of the passive optical components included in the project. TELNET’s solution makes it possible to offer conventional TV, Satellite TV, telephone, and data services to residential zones and business environments.
  

In the PON equipment section, TELNET has two products: the OLT or head-end equipment, and the user device, ONU. Among the different ONU models available, customers may select different configurations in terms of the number of Fast Ethernet ports, WiFi support, Power-Over-Ethernet, CATV, and satellite polarities, with the latter options allowing users to receive all of the analog and digital television channels simultaneously over the optical fiber, along with the channels coming from up to four satellite polarities. On the head end or service node side, the OLT optical module is compatible with TELNET’s SAE architecture. This allows the OLT to communicate with other equipment over Gigabit, SDH, and xWDM transport networks. Both the OLT and ONU elements are based on the IEEE’s EPON standards.

The EPON standard defines a downstream throughput of 1Gbps, which is shared by all of the users present on the PON network, and in addition, for upstream traffic, there is a second Gigabit channel, which is also shared. Bandwidths for each user (ONU) can be set from the management platform. Lastly, it is important to note that all of the traffic carried on the PON is encrypted with DES. 

TELNET’s PON solution is rounded out by the addition of the iQUEUE management platform. With this, the service operator or manager can carry out all of the provision and service-level control actions required, with interoperability with external databases and/or billing and charging systems.  Lastly, TELNET-RI reinforces its FTTH solution with its many years of experience as a leading manufacturer of optical fiber and passive optical components. In this sense, any problematic topology associated with the running of fiber-optic cable can be resolved: from outdoor cables, splitters, and optical distribution frames, with protection against degradation and deterioration, to fireproof, non-smoke-emitting, and halogen-free indoor cables and patch cords.