The rise of WiFi technology has greatly changed people's work and life, now most of the work area, public places and family are covered with WiFi, so that mobile phones and other mobile devices can access the Internet anytime and anywhere. So how does WiFi work? Now most of the WiFi network, especially the enterprise WiFi, is achieved through wireless AP.
What is wireless AP?
Wireless AP is used to convert wired data signals to wireless data signals, so that portable computers, mobile phones and other mobile devices can access the network anytime and anywhere. This equipment is usually installed in offices and public places (such as railway stations, hospitals, etc.) and is suitable for providing WiFi services in a wide area.
Factors affecting the performance of wireless AP networks
The performance of wireless AP is related to many factors. If you want to buy a wireless AP device, the following points should be included:
rate
The rate of wireless AP is diverse, and there are common 300Mbps, 1200Mbps, 1750Mbps and even higher, the faster the rate, the faster the mobile device access to the internet. It should be noted that the price of wireless AP equipment is closely related to its speed, the higher the rate, the higher the price.
Power supply mode
Wireless AP is an active device that requires the support of electrical energy to work properly. However, because wireless AP devices are usually deployed on walls or ceilings, it is very inconvenient to use local power supply. Based on this, people apply PoE technology to wireless AP devices. Now we only need to use a cable to transmit data and current to wireless AP devices at the same time. If you have a great demand for the flexibility of wireless AP, it is recommended that you buy wireless AP devices with PoE function.
Coverage
We know that wireless signals can be easily attenuated, so the distance and coverage of wireless AP providing WiFi services are limited.
Single frequency or dual frequency
One of the important parameters of the wireless signal is a radio frequency band and radio frequency WiFi signal with two types: 2.4GHz and 5GHz, among them, the 5GHz band multi channel, small interference, and channel 2.4GHz band, the signal is less, so the public channel, especially serious interference. Now the wireless AP equipment on the market has single frequency and dual frequency two options, users can freely choose according to the demand.
Installation of wireless AP
As mentioned above, wireless AP is usually deployed on walls or ceilings. The diagram below is a schematic diagram of installing wireless AP devices on the ceiling, and the steps of installing wireless AP on the wall are similar.
After installing the wireless AP device, it is necessary to send the signal and current to the equipment by cable. For wireless AP devices with PoE functionality, it's easy to implement with just one Ethernet cable (pictured below), and for wireless AP devices without PoE functionality, we also have to use the power line to power the device.
Concluding remarks
Wireless AP is an ideal solution to provide WiFi services for public areas such as offices, hospitals and railway stations. At the time of purchase, we should consider the speed, power supply mode, coverage and other parameters according to the demand, and finally select the most cost saving products.