How to correctly select and use power supply PoE switches?
How to properly use the power supply of the PoE switch?
Just contact PoE switch friends, may not know how to choose and use correctly, say a few personal experience, for reference purposes only.
Many kinds of PoE switches, from 100m to Gigabit, Gigabit to the network management and network management, and type, and different kinds of ports, there are large, medium and low-end brand brand brand, so what kind of their own, need comprehensive consideration.
For example, there is a monitoring project, probably need 300 cameras, each camera is 2 million pixels, power is 10W, if the use of PoE power supply, how to choose the PoE switch?
Analysis: there are many 300 cameras. It needs to be cascaded by switches, that is, PoE switches and switches are selected, in which PoE switches are used as the access layer. Since the power of the camera is 10W, AF or at standard PoE switches are available (the current PoE switches basically support these two standards at the same time, power supply is adaptive standard). The 2 million pixel camera stream 8 megabytes, PoE access layer switches can be used 100 hybrid PoE switch 8 or 16, the convergence layer using 24 port Gigabit Ethernet switch, the core layer using 24 port Gigabit Ethernet switch. The convergence layer and the core layer switch select management functions.
The emphasis here is on the PoE switch, which selects each PoE switch to be fully powered, that is to say, if it‘s 8, you can connect 8 cameras at once. In addition, personal advice, do not blindly choose big brands, in fact, in the project, the end of the brand more cost-effective.
A good selection of PoE switch, the use is relatively simple, because it does not need additional power wiring, when PoE switch through the cable connected with camera ready, directly to the PoE switch power, can let the camera work.
In the process of using careful transmission distance more than 100 meters, in addition to select PoE switch power supply with high power, contact PoE switch Hongrui, power is good, in the end the brand price may be more acceptable.