November 06, 2023
PoE switches have been on market for over a decade. In recent years, development of PoE power technology has grown from 100M to Gigabit and then to full Gigabit. The momentum for development of PoE power technology is gaining momentum. stronger and stronger.
PoE Power BenefitsA standard PoE switch has a PoE control chip inside, which has a detection function before power is applied. When device is connected, PoE power supply will send a signal to network to determine whether terminal in network is a PoE-enabled PD. Ordinary switches are force-powered network cable power devices that supply power as soon as they are turned on. There is no detection step, and they supply power regardless of whether terminal is a PoE-powered device, and it is very easy to turn it off. burn access device.
It can be said that PoE power supply has huge advantages. It has flexible wiring and flexible deployment and doesn't need to consider issues like power lines and outlets; it can minimize costs and save a lot of construction and maintenance costs; especially its high security and stable system meet monitoring requirements.
From this point of view, PoE power should be widely used in practice, but real situation is that PoE power is often overlooked. How many unimaginable secrets are hidden in this?
Why not use a PoE power supplyHigh construction costs and low operating costs
Even though price of PoE switches has come down, they are still higher than conventional switches. Although this price difference is sometimes not too big, for uninitiated in monitoring, they feel that seller is using every penny.
For example, for a project that needs a list of offers, when a customer sees your offer of 400 yuan for an 8-channel PoE switch, they will definitely drown in an instant, thinking that you are cheating money. But if you directly use a normal quote switch, even if you add a little more profit yourself, clients are more likely to accept it.
Extremely high stability of today's mature PoE power technology reduces cost of subsequent operation and maintenance. It only needs to invest in a high-quality network cable at an early stage, which can save on maintenance and upgrade of power adapters, power cords, sockets, etc. It can be said that this is an engineering company's investment in an early stage in exchange for customer peace of mind for more late stage, but how many customers What about recognition of this contribution?
The threshold of network knowledge is high and some engineering companies cannot work with PoE switches
Setting up a PoE switch requires knowledge of IP networks. For some engineers who lack relevant knowledge and experience, choosing a PoE switch or setting up a switch is indeed a difficult issue. Consider backplane bandwidth and port packet rate when choosing a switch. And PoE switch is more than that, it also needs to calculate or evaluate power supply, type of power supply, number of power cameras, etc. Some engineering companies will encounter a number of problems such as no picture or unstable display without this professional network knowledge . Inexperienced engineering companies will also be discouraged by this PoE switch.
At present, PoE power supply technology is gradually becoming mainstream. With social progress and industry development, we believe that cost of PoE will become more affordable for people, and overall quality of engineering companies will also improve. improve in general. PoE power supplies, which engineering companies want to love but dare not presumptuously love, should become absolute main force in video surveillance market and help industry develop faster.
