As everyone knows, the passive in the passive optical network (PON) means that the ODN does not contain any electronic devices and active electronic devices. It is composed of passive components such as optical splitters. Therefore, the optical splitter can be seen. In the importance of passive optical networks, do you really understand what is the use of optical splitters and optical splitters in PONs?
What is PLC splitter ?
Optical splitters, also known as fiber splitters or passive optical splitters, are core optical components that distribute a beam of light to multiple optical fibers, commonly used in passive optical networks, primarily a single optical fiber. The transmission optical signals in the distribution are distributed to a plurality of terminal users according to a certain ratio, so that multiple terminal users share a PON interface.
Optical splitter solution in building PON construction
In the PON structure, the layout of the optical splitter needs to consider the factors such as the structure of the cell, the density of users, and the distribution of corridors, so as to achieve the purpose of efficient construction. The following describes several application schemes.
1. Building scattered light distribution
When the distance between buildings is short and the number of user users is large and concentrated, when access to the network room is relatively long in the residential area and there is no room in the residential area, it is recommended to adopt a decentralized splitting scheme. The advantage of this is that the transmission distance is long. Can achieve better signal transmission. As shown in the figure below, the optical splitter is placed in the cable splitter box and the light distribution between the trunk fiber and the distribution fiber is performed.
2. Building focus split
When the distribution of buildings is relatively scattered and irregular, such as the distribution of villas, long distances, and low user density, the use of concentrated light distribution can make full use of resources and cover the surrounding areas. As shown in the figure below, the optical splitter is placed in the cable transfer box, and light distribution is performed between the distribution cable and the drop cable.
In summary, it can be found that the centralized beam splitting mode and the decentralized beam splitting mode have different application scenarios. The centralized split light splitter can flexibly cover a wide range of end users, and the distributed splitter is suitable for a building or an area. Spectral, but it should be noted that this method consumes more PON ports, the demand for optical splitters is also greater, should be carefully considered in conjunction with the situation
