PoE switch is a good helper for video surveillance projects
Video surveillance who are not strangers, some friends at home will install the camera, to ensure the safety of family and property, so many people feel relatively simple. Small monitoring is relatively simple, if it is medium-sized, large or remote monitoring, how to do?
In particular, large-scale monitoring and remote monitoring, monitoring points and a wide range of a wide range, if only a simple access may not meet the requirements of high bandwidth, high definition, high quality. Some people think that optical fiber transmission is a good way, really good, but how to solve the bandwidth bottleneck fiber optic transmission? If the distance is more than 10km?
It is said that the traditional optical network transmission also has some disadvantages, mainly in the high cost, but this time using PON passive optical network is the best choice.
Passive optical network technology is a newly developed point to multipoint optical fiber access technology, which consists of optical line terminal, optical network unit and optical distribution network. Generally, it adopts TDM broadcast mode and TDMA mode, and can be flexibly composed of tree type, star type and bus type topology. The essential feature of PON is that ODN is composed of passive optical devices, and does not contain any active electronic devices. This avoids the electromagnetic interference and the lightning effects of external equipment, reduce the failure rate of cable and external equipments, simplify the power allocation and management complexity, improve system reliability, while reducing maintenance cost.
Need and the traditional optical fiber transmission is different from the other point is that PON is used in the transmission of single core, is the use of a fiber optic transmission, while the traditional optical fiber transmission using a dual core fiber is 2, can be seen from this, PON technology can save the cost of general optical fiber.
Summing up the above, we can get the PON access mode has the characteristics of high reliability, high stability, cost saving, transmission distance and so on. Compared with the traditional way, the network has the advantages of simple and reasonable network, saving a large number of optical fiber resources, equipment installation space, and reducing network fault points.
We know that the surveillance camera with our home appliances, the need for power to work, in some cases inconvenient to take electricity, had to move the location of the camera installation, and thus affect the monitoring results. PoE power supply technology can solve this problem, especially the PoE switch is now widely used, it is a kind of cable power supply equipment, it can give the camera power supply through the cable, without power supply or power supply to the. This technology can greatly simplify the construction.
Return to the field of security monitoring, because PON and PoE have their own advantages, in the monitoring project, you can use. The transmission distance of the former can provide higher network bandwidth and farther, and the general fiber, which can simplify the construction, do not have to worry about power supply equipment. For the convenience and flexibility of network, PoE switches with the PON launch of Hong Xiang Burghardt function, also called the PON-PoE switch, it has PON and PoE at the same time, can be compatible with the market mainstream OLT equipment, transmission distance up to 20km.
Network monitoring, you can use PON+POE networking mode, optical fiber transmission, break through the bottleneck of traditional cable transmission, so that a wide range of data, remote coverage, and construction and maintenance easier. The fusion of mainstream PON technology, PoE technology, to achieve a unified PON and PoE integration, reduce the construction cost and maintenance cost, improve the operator‘s investment income ratio, is the real maintenance solution management cost. On the other hand, PON-PoE switch will also become a good helper video surveillance project.
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