Understand the basic knowledge of wireless network AP, wireless products are no longer confused

A wide range of wireless network products are available everywhere. Ordinary users can also enjoy the wireless network easily. The more so, many friends will gradually confuse some wireless network concepts. Now, let's take a look at the basic knowledge of wireless network AP from wireless devices.

There is a center in a wireless network, which is a Wireless AP. Wireless APAccess Point) is also known as a wireless access Point or session Point. There are basically three types:

Basic knowledge of wireless network AP ① Wireless Access Point

It is equivalent to a hub or switch of a conventional network device. Unlike a conventional network device, this hub has the function of transmitting wireless signals, through which you can connect to a wireless network.

Note:

The Wireless Access Point in ① Is a Wireless AP. Without special emphasis, Wireless AP is what we call simple Wireless AP. Here we will discuss it. AP, Access Point, Wireless Access Node, session Point, or Access bridge) is a wide range of names, it not only contains simple Wireless Access Point Wireless AP ), it is also a general term for devices such as wireless routers including wireless gateways and wireless bridges.

Various articles or manufacturers' names for Wireless AP are currently chaotic. However, with the popularization of wireless routers, there is no special explanation in this case, generally, we only consider the Wireless AP as a simple Wireless AP to distinguish it from the wireless router. It mainly provides wireless workstation access to the wired LAN and from the wired LAN to the wireless workstation. Wireless workstation within the access point can communicate with each other through it.

Simple Wireless AP is a wireless switch and only provides a function for transmitting wireless signals. The principle of simple Wireless AP is to transmit network signals through twisted pair wires. After compilation of AP products, the electrical signals are converted into radio signals to form wireless network coverage. According to different power, it can achieve network coverage in different degrees and ranges. Generally, the maximum coverage distance of a Wireless AP can reach 300 meters. Most simple wireless APS do not provide routing functions. server functions, including DNS, DHCP, and Firewall, must be completed through independent routes or computers. Currently, most wireless APS support multiple users with 30-computers) access, data encryption, and multi-rate transmission. in the home and office rooms, a Wireless AP can achieve wireless access to all computers.

Simple Wireless AP can also be used to control and manage computers with wireless NICs. Simple Wireless AP can be directly connected to the adsl modem or cable modemcm with the built-in routing function through the 10BASE-TWAN port. It can also be connected to the wired network through a switch/hub or Broadband Router during use. The Wireless AP is similar to the wireless router. According to the protocol standard, the coverage of IEEE 802.11b and IEEE 802.11g is 100 meters indoors and 300 meters outdoors. This value is only a theoretical value. In practical application, various obstacles are encountered. The glass, wood board, and gypsum wall have the least impact on wireless signals, the concrete walls and iron have the largest shielding effect on wireless signals. Therefore, the actual use scope is: 30 meters indoors and 100 meters outdoors without obstacles ).

Therefore, as an important part of the wireless network, the Wireless Access Point and the wireless gateway are also the wireless APAccess Point), its role is actually similar to the hub in our commonly used wired network. Companies that require a large number of APs for large-area coverage use a lot. All APs are connected over Ethernet and connected independently.

Basic knowledge of wireless network AP ② Wireless Bridge

What is a wireless bridge? A wireless bridge is designed for remote point-to-point network interconnection. It is a storage and forwarding device that implements LAN interconnection at the link layer. It can be used for long-distance, high-speed wireless networking between fixed digital devices and other fixed digital devices. It is especially suitable for long-distance high in cities and whether bidirectional amplifiers are used. There are three main networking methods: point-to-point, point-to-point, and relay connections.

Basic knowledge about wireless network AP ③ Wireless Router

A wireless router must be a Wireless Broadband Router. A wireless router is a network device that can be connected to a LAN or a WAN and has both the broadband routing and Wireless AP functions. There are two types of wireless routers. One is an ordinary dual-port wireless router without an exchange module. One RJ45 port is a WAN port used to connect to broadband, and the other RJ45 port is a LAN port used to connect to a common LAN. One is a wireless router with 3-4 LAN port switching modules. It has an internal network switch chip, which can be used as a common switch or a cable broadband router.

Through some of the above introductions, do you have a specific analysis of the concept of wireless products? With the development of technology, more wireless products are becoming more and more integrated. Many products are now integrated with multiple functions. Therefore, after learning about the basic knowledge of wireless network AP, we can compare them when purchasing products and select a cost-effective product.