1) What is a wireless bridge?
For wireless bridges, first of all, we must understand the concept of bridges. Bridges are also called bridges. They are storage and forwarding devices that implement LAN interconnection at the link layer. The bridge has the function of regenerating signals between different network segments. It can effectively connect two LANs (Local Area Networks) so that the local communication is limited to this network segment and the corresponding signal is forwarded to another network segment. Wireless bridges are usually used to connect a small number of the same type of network segment.
Wireless bridges, as their name suggests, are bridges to wireless networks. They can bridge communication between two or more networks (wireless bridges are also a branch of wireless APs). In addition to the basic features of the wired bridge described above, the wireless bridge is more convenient to deploy than other wired network devices.
Usually, some devices can have functions such as ap and bridge, and can be set through configuration. The functional difference between the ap and the bridge is mainly in the application. The ap is used for the coverage. The user is mainly a single mobile user and has functions such as roaming and authentication. But the bridge is primarily a connection between user networks. Bridges generally cannot communicate with cards. As for the communication distance, this has nothing to do with the mode.
(2) What is a wireless AP?
A wireless AP can be understood as a wireless router, and the AP is only a function of the wireless router.
The wireless AP (AP, AccessPoint, wireless access node, session point, or access bridge) is a very broad name. It includes not only simple wireless access points (wireless APs) but also wireless routers (including wireless gateways). , wireless bridge) and other generic equipment. All kinds of articles or manufacturers in the face of wireless AP's title is currently confusing, but with the popularity of wireless routers, if there is no special description in the current situation, we generally only understand the wireless AP that is called as a simple wireless The AP distinguishes itself from wireless routers. It mainly provides wireless workstations access to wireless workstations from wired LANs and wired LANs. Wireless workstations within the coverage of access points can communicate with each other through it.
A simple wireless AP is a wireless switch that merely provides a wireless signal transmission function. The principle of the simple wireless AP is to transmit the network signal through the twisted pair. After the AP product is compiled, the electrical signal is converted into a radio signal and sent out to form the coverage of the wireless network. According to different powers, it can achieve network coverage of different degrees and different ranges. The maximum coverage distance of a typical wireless AP can reach 300 meters.
Most simple wireless APs do not have routing capabilities. Server functions, including DNS, DHCP, and Firewall, must be completed by independent routes or computers. At present, most wireless APs support multi-user (30-100 computers) access, data encryption, multi-rate transmission and other functions. In the home and office, a wireless AP can achieve wireless access for all computers.
Simple wireless APs can also perform necessary control and management of computers with wireless network cards. A simple wireless AP can be directly connected to the ADSL MODEM or CABLE MODEM (CM) with built-in routing function through a 10BASE-T (WAN) port, and can also be connected to a wired network through a switch/hub and a broadband router when used.
The wireless AP is similar to the wireless router. According to the protocol standard, the coverage of the IEEE802.11b and the IEEE802.11g is 100 meters indoor and 300 meters outdoor. This value is only a theoretical value. In practical applications, various obstacles will be encountered. Glass, wood, and gypsum walls will have minimal impact on wireless signals, while concrete walls and iron will have the greatest shielding against wireless signals. Therefore, the actual scope of use is: indoor 30 meters, outdoor 100 meters (without obstacles).
Therefore, as an important part of the wireless monitoring network, the wireless access point and the wireless gateway, ie, the wireless access point (Access Point), are actually similar to the hubs in our commonly used wired network. There are many companies that use a large number of APs for large area coverage. All APs are connected via Ethernet and connected to a separate wireless LAN firewall. But at the same time, because its general purpose wireless AP does not have an additional LAN interface, its application scope is narrow.
(3) The main differences between wireless bridges and wireless APs
Wireless bridges are usually used outdoors and are mainly used to connect two networks. They have large power, long transmission distances (up to about 50km), strong anti-interference ability, etc. They do not have their own antennas and are generally equipped with parabolic antennas for long distances. Point-to-point connection.
The wireless AP is generally used indoors. The AP (Accesspoint), like its name, is a wireless access point. It mainly plays an access role and is usually used in the nodes of the wired network and the wireless network. It is inconvenient in general engineering. Wireless AP can be used in the place of wiring
Terminals connected to this area access the wired network through the AP. Generally, the antenna is equipped with an antenna. Under the transmission power, the transmission distance (coverage range) is small. Even if the external antenna + power amplifier, the transmission distance is not more than ten kilometers, and due to the resistance Multipath interference is poor, so the signal is also unstable.
Wireless bridges and wireless APs can also be mixed. For example, Cisco's 340 series can choose between AP mode and bridge mode. I even set the base station to AP and the remote to Bridge mode to communicate.
In general, an AP is an AP, which is used for indoor coverage, and an outdoor bridge is an outdoor bridge for network connection.
Tengyuan Zhituo Technology Center can answer questions about wireless bridges in wireless monitoring equipment for free. Please contact us if you need help.
For wireless bridges, first of all, we must understand the concept of bridges. Bridges are also called bridges. They are storage and forwarding devices that implement LAN interconnection at the link layer. The bridge has the function of regenerating signals between different network segments. It can effectively connect two LANs (Local Area Networks) so that the local communication is limited to this network segment and the corresponding signal is forwarded to another network segment. Wireless bridges are usually used to connect a small number of the same type of network segment.
Wireless bridges, as their name suggests, are bridges to wireless networks. They can bridge communication between two or more networks (wireless bridges are also a branch of wireless APs). In addition to the basic features of the wired bridge described above, the wireless bridge is more convenient to deploy than other wired network devices.
Usually, some devices can have functions such as ap and bridge, and can be set through configuration. The functional difference between the ap and the bridge is mainly in the application. The ap is used for the coverage. The user is mainly a single mobile user and has functions such as roaming and authentication. But the bridge is primarily a connection between user networks. Bridges generally cannot communicate with cards. As for the communication distance, this has nothing to do with the mode.
(2) What is a wireless AP?
A wireless AP can be understood as a wireless router, and the AP is only a function of the wireless router.
The wireless AP (AP, AccessPoint, wireless access node, session point, or access bridge) is a very broad name. It includes not only simple wireless access points (wireless APs) but also wireless routers (including wireless gateways). , wireless bridge) and other generic equipment. All kinds of articles or manufacturers in the face of wireless AP's title is currently confusing, but with the popularity of wireless routers, if there is no special description in the current situation, we generally only understand the wireless AP that is called as a simple wireless The AP distinguishes itself from wireless routers. It mainly provides wireless workstations access to wireless workstations from wired LANs and wired LANs. Wireless workstations within the coverage of access points can communicate with each other through it.
A simple wireless AP is a wireless switch that merely provides a wireless signal transmission function. The principle of the simple wireless AP is to transmit the network signal through the twisted pair. After the AP product is compiled, the electrical signal is converted into a radio signal and sent out to form the coverage of the wireless network. According to different powers, it can achieve network coverage of different degrees and different ranges. The maximum coverage distance of a typical wireless AP can reach 300 meters.
Most simple wireless APs do not have routing capabilities. Server functions, including DNS, DHCP, and Firewall, must be completed by independent routes or computers. At present, most wireless APs support multi-user (30-100 computers) access, data encryption, multi-rate transmission and other functions. In the home and office, a wireless AP can achieve wireless access for all computers.
Simple wireless APs can also perform necessary control and management of computers with wireless network cards. A simple wireless AP can be directly connected to the ADSL MODEM or CABLE MODEM (CM) with built-in routing function through a 10BASE-T (WAN) port, and can also be connected to a wired network through a switch/hub and a broadband router when used.
The wireless AP is similar to the wireless router. According to the protocol standard, the coverage of the IEEE802.11b and the IEEE802.11g is 100 meters indoor and 300 meters outdoor. This value is only a theoretical value. In practical applications, various obstacles will be encountered. Glass, wood, and gypsum walls will have minimal impact on wireless signals, while concrete walls and iron will have the greatest shielding against wireless signals. Therefore, the actual scope of use is: indoor 30 meters, outdoor 100 meters (without obstacles).
Therefore, as an important part of the wireless monitoring network, the wireless access point and the wireless gateway, ie, the wireless access point (Access Point), are actually similar to the hubs in our commonly used wired network. There are many companies that use a large number of APs for large area coverage. All APs are connected via Ethernet and connected to a separate wireless LAN firewall. But at the same time, because its general purpose wireless AP does not have an additional LAN interface, its application scope is narrow.
(3) The main differences between wireless bridges and wireless APs
Wireless bridges are usually used outdoors and are mainly used to connect two networks. They have large power, long transmission distances (up to about 50km), strong anti-interference ability, etc. They do not have their own antennas and are generally equipped with parabolic antennas for long distances. Point-to-point connection.
The wireless AP is generally used indoors. The AP (Accesspoint), like its name, is a wireless access point. It mainly plays an access role and is usually used in the nodes of the wired network and the wireless network. It is inconvenient in general engineering. Wireless AP can be used in the place of wiring
Terminals connected to this area access the wired network through the AP. Generally, the antenna is equipped with an antenna. Under the transmission power, the transmission distance (coverage range) is small. Even if the external antenna + power amplifier, the transmission distance is not more than ten kilometers, and due to the resistance Multipath interference is poor, so the signal is also unstable.
Wireless bridges and wireless APs can also be mixed. For example, Cisco's 340 series can choose between AP mode and bridge mode. I even set the base station to AP and the remote to Bridge mode to communicate.
In general, an AP is an AP, which is used for indoor coverage, and an outdoor bridge is an outdoor bridge for network connection.
Tengyuan Zhituo Technology Center can answer questions about wireless bridges in wireless monitoring equipment for free. Please contact us if you need help.
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