What Is A Wifi Bridge

Point To Point Wifi Bridge Buying Guide

Wireless Bridges for Networking
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  • What Does Wireless Bridge Mean

    A wireless bridge is a type of networking device that enables an over-the-air connection between two different segments of a local area network . Wireless bridges use radio signals in the microwave or laser spectrum to provide fixed wireless access.

    A wireless bridge, which may also be referred to as a Wi-Fi bridge, works much like a wired network bridge. They play an important role in connecting LAN segments that are logically separated or located in different physical locations.

    How Does A Wireless Bridge Installation Work

    RF wireless bridges are typically installed outdoors, on top of buildings and/or on metallic poles or masts. They have a directional antenna and require electrical power to operate. For short-range, low-power links, that can be supplied through PoE, but a dedicated power source is otherwise required. Each bridge endpoint is connected to its respective network via a wired connection.

    FSO laser wireless bridges are quite similar, but they use optical transmitters and receivers instead of antennae. They are also mounted on top of buildings on masts, and most of them look a bit like tripod-mounted cameras.

    Determining if, where, and how the devices can be installed is the more difficult part of installing LoS bridges. The installation process itself is fairly straightforward and usually takes a few hours, depending on distance and environment. For long-distance, NLoS communication, the process is slightly more elaborate it requires a basic initial design effort and licensing, and installation is of course complicated by the fact that it has to be carried out on endpoints that can be many kilometers apart.

    Both RF and FSO links require regular and careful maintenance. This is particularly important for equipment that operates in the licensed region of the spectrum, where the requirements for compliance are very strict.

    Need help with wireless bridge installation thats up to date on both technology and regulations? Were just a phone call or a click away!

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    Comes Configured And Wired

    The Long Range WiFi Bridge System is the best way to connect two locations to the same network wirelessly up to 3 miles away. This system is very simple to set up. It comes preconfigured and wired by C. Crane so there are no settings to adjust or software to install. Just attach the antennas to each half of the bridge, at each location, and plug them in. Use larger antennas like the Point-To-Point WiFi Antenna for long distances, or smaller antennas for shorter distances. Good line of sight without obstructions must be achieved between both antennas for best reception. LED lights on each bridging device make it easy to align your antennas with each other.

    Will it work for me?
    • Requires line of sight between two points
    • Must be within three miles
    • Antenna must be mounted outside at approximately roof height at each location
    • You must have a router and Internet service at one location
    • If you are unsure of your system needs, please fill out this form and our specialist will contact you. Custom WiFi

    You will need to connect the first half of the WiFi Bridge, using the supplied 60″ Ethernet cable, to an empty LAN port on your router. The Wireless Bridge then beams the encrypted Internet signal to your second location wirelessly. The second half of the system terminates with an Ethernet cable that provides Internet and network connectivity to one computer or other WiFi devices by using a WiFi router. You will need power at both locations to power the Bridge.

    Can A Router Connect To Another Router Wirelessly

    KuWFi Wireless bridge

    Connecting two home routers over wireless is also possible, but the second router can only function as a wireless access point instead of a router in most configurations. You must set up the second router in client mode to utilize its full routing functionality, a mode that many home routers don’t support.

    Also Check: 2 Wifi Routers In One House

    Wds Wireless Bridge Mode Wireless Bridge For Long Distances

    Wireless Bridge mode is another WAP feature, which assumes a more complex configuration of all network elements, but if you do everything carefully and in order, then no problems will arise.

    A characteristic feature of this WDS mode is that, that data transmission over the air is established only between the equipment itself. Everything is connected to it via a cable. It then allows you to easily connect all kinds of home appliances via Ethernet, then manage them, being at a decent distance. Undesirable, so that the maximum possible number of devices involved exceeds 30 elements, otherwise, the connection speed will decrease significantly. If you need to connect more client devices, then you can think about using several Wireless Distribution System infrastructures.

    Communicating With The Network

    Keen Home Smart Vents communicate with our smart bridge using the low power communication protocol ZigBee, based on the IEEE 802.15.4 standard. Because of ZigBees low power nature, we can squeeze two or more years out of the four batteries we include in with every Smart Vent. If we had gone with WiFi which precludes the need for a hub the Smart Vents wouldnt be half as power efficient. ZigBee also has the added benefit of its meshing capabilities, which allow the easy addition of range extenders to the ZigBee network.

    The bridge itself plugs directly into a homeowners existing gateway or WiFi router, connecting it to the internet. Once an internet connection is established, data such as firmware updates or triggers from our control algorithms travels from our servers to the bridge. From there, the data must be continuously translated into ZigBee protocol and transmitted to the Smart Vents so that they can receive them. Conversely, if the integrated temperature and pressure sensor in each Smart Vent sends information to the Keen Cloud, it first passes through the bridge where it is translated from 802.15.4 into packets of information that can be understood by our software backend. The information is logged, fed to our controls algorithms, and then sent back to the Smart Vents. The same process occurs when a homeowner sends a command to the Smart Vents, only in reverse.

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    How It All Works

    These simple point-to-point APs only have one port on them: a 100Mbps Ethernet interface, hidden behind a weather-resistant access panel. That single interface provides the access point with both power and data.

    If you have a Power over Ethernet switch already, you can use it to feed your AP just like you would a camera or other device. If you don’t have a PoE switch, you can just use the PoE injector included with the CPE210/CPE510 insteadthe injector has one AC power plug, one “Data” Ethernet port that you plug into your network, and one Power + Data Ethernet port that goes to the AP.

    On the remote side, things work just the same. You use either a PoE switch or the included injector to power and feed the access point. If you’re using the injector, the “Data” port can be plugged into a single device directly or plugged into a switch to feed a whole network.

    Although TP-Link’s bridges support connecting client devicese.g., laptops, phones, and tabletsto them directly, I don’t recommend doing so. Configuring multiple devices to use the same Wi-Fi band and channel as the bridge APs do will have a severe impact on the point-to-point link quality.

    If you’re wondering how to get “whole barn Wi-Fi,” it’s simpleconnect a Wi-Fi Access Point like TP-Link’s EAP-225 to the output of the bridge. If you configure it to have the same SSID and password you’d use to connect at your house, your devices will even automatically roam to either side of the link.

    Fresnel Zone & Rf Line Of Sight

    Wireless Long Range WiFi Bridge Installation

    Over long distances the 10 degrees beam width can get quite large and is called a Fresnel zone. A Fresnel zone is rugby ball shaped and its size will depend on the frequency used.

    When investigating whether you have line of sight between two end points the mistake can be made to just look at optical line of sight, and not RF line of sight. Due to the Fresnel zone, this is two completely different things.

    If anything encroaches on the Fresnel zone, you have a near or none line of sight link this can often occur when you have optional line of sight. Depending on the type of bridge used , it will not be detectable using a WiFI device. While you may be able to detect the frequency in use with a WiFi spectrum analyser, you will not be able to join the network or obtain any of the data from it. Above all else, most wireless bridges will use encryption to keep the data secure.

    A wireless bridge is layer 2, this means it is using wired switches to communicate between either end of the link and NOT a router, a bridge is not a routed deployment. This is sometimes called a flat network, all of this means you can in effect create what BT once called a LES circuit this is a LAN extension.

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    Is Wifi Bridges A Health Risk

    No. Wireless bridges can be safely operated by high-quality equipment if properly installed and maintained. The RF and optical signals are safe and have no fire hazards.

    RF and optical equipment used for telecom are intended to operate in the EM spectrum at low signal strength levels, which cause minimal biological effects.

    Installation guidelines are designed to reduce exposure to RF or optical signals. This is because RF wireless bridges use highly directional antennae. Most RF waves are concentrated in the Fresnel area, which looks like a long narrow barrel with antennae at the ends.

    Optic links operate in the invisible spectrum at low signal strengths and are installed to avoid exposure. Wireless bridges are safe as long as theyre correctly installed.

    What Is A Wireless Video Bridge

    A wireless bridge is a solution that connects two networks or two segments of a network over a wireless channel. This is why the name.

    Wireless bridges are used to connect networks, such as those within the same building, nearby shipping and manufacturing areas, and offices just across the street. A wireless bridge is also known as a WiFi bridge.

    Wireless bridges connect two access points using radio , microwave , and optical/laser signals links.

    Antennae, which are usually highly directional antennae, allow them to transmit and receive wireless signals and connect to regular IP networks. A wireless link can join two IP networks.

    Wireless bridges can transmit and receive signals using optical receptors or antennas through the air. They are also known as free-to-air , bridges.

    These wireless links are also point-to-point because communication is done between two transceivers, rather than one transmitter that broadcasts a signal to all receivers.

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    Techopedia Explains Wireless Bridge

    A wireless bridge has an antenna to send and receive radio signals, as well as cabling to connect to a wired LAN switch or router.

    Wireless bridges are a good alternative when:

    • Wired LAN connections are cost-prohibitive.
    • Wired links cannot be deployed for technical and/or legal reasons.
    Related Question

    Linksys Cloud Manger 20 Migration

    Best Wireless Access Point For Home


    By clicking the CONFIRM button I accept the Terms and Conditions related to the migration from Linksys Cloud Manager 1.0 accessible via www.business.linksys.com to Linksys Cloud Manager 2.0 accessible via www.cloudmanager.linksys.com for all devices purchased with the LCM1 firmware including LAPAC1200C, LAPAC1750C, LAPAC2600C and all regional variations. Migrating from LCM1 to LCM2 provides for new functionality, but also changes and eliminates other features. Those that are comfortable with the functionality provided in LCM1 do not have to migrate but should know that Linksys will not be developing new functionality based on the LCM1 platform. Details of the changes are outlined below. Please read carefully before initiating firmware migration.

    Important facts to be aware of before migrating:

    The migration to LCM2 brings new improvements over LCM1 which are listed here , but also changes and eliminates some functionality currently available in LCM1:

    For any technical issues, please consult our online Linksys Cloud Manager 1.0 to 2.0 Migration Guide or contact us at . For North American phone support, call our dedicated Business Technical Support line Monday-Friday, 5am-11pm PST at: +1 855-6899. For all other regions, go here to see your support options or contact your local Linksys office for more information.

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    Laser Or Free Space Optics Bridges

    FSO laser links are wireless connections that use optical signals for transmission and reception. They look just like RF bridges at first glance. However, optical signals are electromagnetic waves that operate higher than radio frequencies.

    Whats the point?

    Laser links are unique in that they are not affected by radio and electrical interference. Even within the licensed spectrum, there are still sources of interference, such as lightning and high-power electric lines.

    Interference from equipment belonging to the same company can cause interference to medium- and long-range RF bridges located near busy industrial floors or electric stations.

    FSO laser links dont suffer from this interference and are exempt from licenses. They do require a clear line of sight. Physical obstacles, including smoke or heavy fog, can cause interference to an FSO wireless bridge.

    Its operating distance is limited to 3 km for high-speed links and 4-5km for 100 Mbps links. This is still a lot higher than the speeds you can get with license-exempt radio bridges, particularly in busy areas like London.

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