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Especially for large-scale monitoring and remote monitoring, the number of monitoring points is numerous and has a wide range. If only a simple access method may not meet the requirements of high bandwidth, high-definition, and high-quality. Some people think that optical fiber transmission is a good method, really good, but how to solve the bandwidth bottleneck of fiber transmission? If the distance exceeds 10km?
In other words, the traditional optical network transmission also has certain drawbacks. At this time, PON passive optical networks can be used.
Passive optical network technology is a newly developed point-to-multipoint optical fiber access technology consisting of an optical line terminal, an optical network unit, and an optical distribution network. Generally, the downlink uses the TDM broadcast mode and the uplink adopts the TDMA mode, and the topology structure such as the tree type, the star type, and the bus type can be flexibly formed. The essential characteristic of PON is that ODN consists entirely of passive optical devices and does not include any active electronic devices. This avoids the electromagnetic interference and lightning impact of external devices, reduces the failure rate of lines and external devices, simplifies the power supply configuration and network management complexity, improves system reliability, and saves maintenance costs.
Compared with point-to-point active optical networks, the main features of PON technology are simple maintenance, low cost (saving optical fiber and optical interface) and high transmission bandwidth. Its high performance and price ratio characteristics make it very long. Stay competitive in time.
In the video surveillance due to the need to power the surveillance camera, so the use of PON + PoE is the best choice. Fengrunda's EPS5081 is a PoE switch based on PON technology. It also has a PON port and a PoE port. It can be described as "a strong person who meets a strong person" and gives full play to "low cost, simple and convenient, easy maintenance, high bandwidth, transmission in monitoring". Distance is far away.
PON has always been regarded as the future development direction of the access network. With the integration of PoE technology, it will play a huge advantage in video surveillance.
Advantages of PON-PoE Switch in Video Surveillance
Video surveillance is no stranger to anyone. Some friends also install cameras at home to ensure the safety of their families and property. Therefore, many people find it relatively simple. Smaller monitoring is simpler. What if it is medium, large or remote monitoring?