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Teach you to build WiFi network with wireless AP
The rise of WiFi technology has greatly changed people's work and life. WiFi is currently covered in most work areas, public places, and homes, allowing mobile devices such as mobile phones to access the Internet anywhere, anytime. How is WiFi implemented? Most WiFi networks, especially corporate WiFi, are implemented using wireless APs.
What is a wireless AP?
Wireless APs are devices used to convert wired data signals into wireless data signals, allowing mobile devices such as laptops and mobile phones to access the network anytime, anywhere. This equipment is usually installed in offices and public places (such as train stations, hospitals, etc.) and is suitable for providing WiFi service in a wide area.
Factors Affecting Wireless AP Network Performance
The performance of wireless APs is related to many factors. If you want to purchase wireless AP devices, the following points should be taken into consideration:
rate
The speed of the wireless AP is varied. Commonly, there are 300Mbps, 1200Mbps, and 1750Mbps or even higher. The greater the rate, the faster the mobile device can access the Internet. It should be noted that the price of a wireless AP device is closely related to its rate, and the higher the rate, the higher the price.
Power supply
Wireless APs are active devices that require the support of electrical energy to function properly. However, since wireless AP devices are usually deployed on walls or ceilings, it is inconvenient to use local power supply. Based on this, people have applied Power over Ethernet (PoE) technology to wireless AP devices. Now we can use a single cable to transmit data and current to wireless AP devices at the same time. If you have more requirements on the flexibility of wireless APs, it is recommended that you purchase wireless AP devices with PoE.
We know that wireless signals are easily attenuated, so wireless APs provide limited distance and coverage for WiFi services.
Single frequency or dual frequency
One of the important parameters of the wireless signal is the radio frequency band, and the WiFi signal has two types of radio frequency bands: 2.4 GHz and 5 GHz. Among them, the 5 GHz band has many channels and the interference is small, while the 2.4 GHz band has few channels and has many signals. Common frequency band, so the interference is particularly serious. Nowadays, wireless AP devices on the market are available in single frequency and dual frequency, and users can freely choose according to their needs.
Wireless AP installation
As mentioned above, a wireless AP is usually deployed on a wall or a ceiling. The following figure shows a schematic diagram of installing a wireless AP device on the ceiling. The procedure for installing a wireless AP on a wall is similar.
After installing the wireless AP device, it is necessary to use cables to send signals and currents to the device. For a wireless AP device with PoE function, it can be easily implemented using only one Ethernet cable (as shown in the figure below). For a wireless AP device without PoE function, we also need to use a power cable to supply power to the device.
Conclusion
Wireless AP is an ideal solution for providing WiFi service in public areas such as offices, hospitals, train stations, etc. When purchasing, we should consider various parameters such as its speed, power supply mode, coverage, etc., and finally select the most The cost of the product.