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Which type of PoE switch is suitable for network video surveillance?
The network monitoring system occupies an absolute position in the security of our country, and the switch is an indispensable equipment of the whole system. Whether it is correctly configured directly affects the stability of the network monitoring system in the later period.
Fengrunda reminds users that when choosing a PoE switch, it is necessary to choose from such aspects as backplane bandwidth, packet forwarding rate, and power supply.
The backplane bandwidth is the maximum amount of data that can be processed between the interface processor or interface card and the data bus. It indicates the overall data exchange capability of the switch. The higher the backplane bandwidth, the stronger the ability to process data.
The packet forwarding rate also refers to the port throughput, which refers to the packet forwarding capability of a router on a certain port. The higher the packet forwarding rate, the better the performance.
The power supply includes the PoE power supply standard and the overall power. The af standard single-port maximum output power is 15.4W, and the standard single-port maximum output power is 30W, so the at-standard is better than the af standard. In addition, the overall power is also very important, the greater the power of the whole machine, the stronger the power supply performance of the PoE switch.
If it is a medium and large-scale network monitoring system, the switch cascades, namely the access layer, aggregation layer, and core layer switches.
Access layer: You can select 8 or 16 common fast switches. It is recommended that the number of cameras on the access switch be controlled between 6 and 10 units.
Convergence layer: The performance is higher than that of the access switch. You can select a Layer 2 switch with 1000 ports. The 100M Ethernet port of the switch is connected to the switch. The number of cameras connected to the gigabit port and the core switch of the monitoring center should be controlled at about 30 sets.
Core layer: The core switch is the core of the entire digital surveillance system, the next aggregation switch, the uplink video surveillance platform, storage server, digital matrix and other equipment. It is recommended to select three full-gigabit core switches, and the number of cameras exceeds 150 units to consider the three-layer system. Mega-core switch.
Other considerations: If you choose Web-managed switch management will be more convenient, it is best to choose speed limit switches, and in the choice of large cache switches, access layer and aggregation layer switches require no core layer so high. When selecting each layer of switches, you can choose from FengRunda's PoE switches, all-Gigabit Ethernet switches, or Eastern Series 10Gigabit switches, with many types, stable performance, and high performance-to-price ratio.