FTTH (Fiber To The Home) has changed a lot in the way we live and work. When planning an installation, many factors should be taken into consideration, such as regulation, implementation cost, the need to future-proof investment and so on. This blog will mainly focus on two main FTTH architectures–point to point (P2P) and passive optical network (PON) as one of the suggestions for FTTH deployment.
Currently, the requirements for higher internet access speeds are increasing by various applications, such as cable TV, Movie Streaming, Multi player Gaming, Video Conferencing, 3D, etc. Apparently the transmission capacity of copper cables is limited and can’t meet the the needs of higher bandwidth. So fiber cables soon become the substitutes of copper cables. FTTH technology uses optical fiber cable from a central point directly to individual buildings such as residences, apartment buildings and businesses to provide unprecedented high-speed Internet access. FTTH dramatically improves the network speeds available to computer users compared with technologies now used in most places.
Before deploying FTTH networks, let’s take a look at two main FTTH infrastructure types P2P and PON. In short, P2P architecture uses all active components throughout the chain & point to multi-point (P2M) and PON architecture uses passive optical splitters at the aggregation layer.
In a PON network architecture, an optical line terminal (OLT) will be deployed in the Point of Presence (POP) or central office. One fiber cable connects the passive optical splitter and the fan-outs connect end users (a maximum of 64) with each one having an Optical Networking Unit (ONU) at the point where the fiber cable terminates.
While a P2P architecture is more complex. It has a core switch at the central office, which connects over optical fiber cables to an aggregation switch at the distribution point (typically located at a street corner). These aggregation switches have many fiber ports and each port directly connects to an Optical Network Termination (ONT), which is located inside or outside the user’s residence or business premises.
To decide which kind of architecture to choose, more details should be known. Each type has its own advantages and disadvantages. The following will list the strengths and weaknesses to make the decision.
The above content shows information about the advantages and disadvantages of FTTH P2P and PON architectures. When designing the architectures, network operators should balance the strengths and weaknesses of both types. If you need a future-proof infrastructure, you better select P2P. Besides, cost and network efficiency are also the factors to decide which architecture is more suitable. Actually, architectures design may depend on many other situations. Hope this article is helpful for you.