Redband has great experience in FTTB and FTTH architectures.
We hold a really large portfolio of FTTH products, from the home socket to the premises distribution.
• Fiber Optic cables (Indoor/Outdoor applications) / G.652, G.655 , G.657
• Outdoor cabinets and termination boxes
• Splice closures
• Indoor termination boxes
• Cables for indoor outdoor applications
• Optical sockets
Point to Point architecture
Point to Point FTTH network architecture provides a direct connection to a single household.
In that sense, it is similar to copper-based DSL networks however it is fully based on fiber.
It is clear that PTP FTTH benefits from developments in high-density fiber cables and optical distribution frames (ODF). Nevertheless, the fiber complexity remains high since all fibers require termination and handling at a central node. The fiber-only losses allow cheaper optical components to be used since the transmission power and required receiver sensitivity are lower than in PON-based networks. Typical maximum distances are specified up to 10 km due the power budget. Each user has a dedicated port at the switch and so an operator can opt for a “pay-as-you-grow” scenario by using multiple ODF in cascade.
WDM PON Architecture
As a basic principle, WDM PON provides an independent wavelength channel to each user in each communication direction while the fiber architecture is shared. It therefore combines the fiber efficiency of a PON with the powerful features of PTP connectivity. WDM PON is currently an emerging FTTH technology and vendor-specific in its implementation at the optical layer.
WDM PON architecture has a passive 1:N splitter in the outside plant to share a single fiber to the central office between multiple users. The cost of a single fiber is consequently shared. The passive node may consist of a wavelength filter or an optical power splitter. The former has a much better loss figure at high split ratios than the latter and so architectures based on WDM filters are more suitable for long reach access deployments. Power splitter based WDM PON allow a seamless upgrade of existing TDM PON (BPON, EPON, GPON) networks which is a great benefit since such “zero-touch” refrains from making additional investments in the outside plant. The wavelengths are statically routed in the network and so any kind of reconfigurability has to be offered by the end nodes.