PoE technology in security monitoring and wireless engineering solutions

A lot of security monitoring, wireless coverage project friends have a lot of understanding of PoE power supply, but also recognized the benefits of PoE power supply, but in the actual project wiring time to find PoE deployment will have certain limitations, such as in the upper end of the switch and the lower end of the terminal equipment do not support the PoE or the need to use the traditional wiring methods.

As we know, the traditional wiring method of wiring costs, high labor costs, and is not conducive to late maintenance. This article discusses the PoE power supply of the four engineering applications, familiar with the four methods, any scenario can use the convenience of PoE power supply to avoid unnecessary trouble.

①Switch and terminal equipment all support PoE

This method PoE switch directly through the network cable to support PoE power supply wireless AP and network cameras, this method is the simplest, but also need to pay attention to the following two points:

1, to determine whether the PoE switch and wireless AP or network camera is a standard PoE device

2, to carefully confirm the specifications of the purchased cable, cable quality is critical, bad quality cable will lead to AP or IPC can not be powered or constantly restart .

② switch supports PoE, the terminal does not support PoE

This program PoE switch out of the PoE separator, PoE separator will be separated into data signals and power, there are two output lines, one is the power output line, one is the network data signal output line that is the ordinary network cable. The power output has 5V/9/12V, etc., which can match various DC input non-PoE powered terminals and support IEEE

802.3af/802.3at standard. The data signal output line, i.e. ordinary network cable, can be directly connected to the network port of the non-PoE powered terminal.

③The switch does not support PoE, and the terminal supports PoE.

In this program, the switch is connected to the PoE power supply, and the PoE power supply adds power to the network cable and then transmits it to the terminal. This program is conducive to the expansion of the original cabling network and has no impact on the original network.

④The switch does not support PoE and the terminal does not support PoE.

This program connects the switch to the PoE power supply, and then connects to the PoE splitter, and finally transmits to the terminal.

Programs III and IV are suitable for the transformation of the traditional network, that is, the original switch does not support PoE power supply, but would like to take advantage of the PoE power supply benefits of the premises.

To summarize, PoE can be used no matter what the scenario is, and it is convenient to utilize the various conveniences that PoE brings. In addition, the correct choice of PoE switch is important, a good PoE switch can make the whole system more stable and easy to maintain and upgrade.