Meshdynamics
Meshdynamics MD4000 Modular Mesh Node Family

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 MD4000 Modular Mesh Architecture.  

      Meshdynamics MD4000 nodes support up to 4 radios in one outdoor enclosure. [Picture]

      Slot 0, &  Slot 1  uplink and downlink form the basic backhaul, operating on 5.8GHz, 4.9GHz or 2.4Ghz bands..
      Slot 2 is generally used for a 2.4G or 4.9G AP (client access) radio.
     
Slot 3 may house another AP radio, another downlink or a dedicated scanning radio (mobile nodes).
 
      Custom Model Configurations are supported, see  Model Numbering Scheme

 MD4000 Commonly Used Network Topologies

    MD4250 is used for remote video surveillance and perimeter security. 
    MD4350 is a popular configuration with one 2.4GHz Access Point radio for client service.
    MD4452 and MD4454 support two and four backhaul downlinks respectively.
    MD4458 support multiple service radios where high client density is anticipated. It supports 2 or 3 client AP radios.  
    MD4455 MD355 MD4325 use a scanning radio in slot 3 to ensure rapid switch over from node to node in a mobile setting.
    Field tests demonstrated real time video transmission from vehicles traveling at 60+ mph [Mobility Field Test]

Bridging Across Multiple Networks.
 

Meshdynamics mesh nodes can bridge a 2.4 GHz sub tree with the 5.8GHz mesh network tree. The figure above shows how this level of flexibility is supported. There are 4 mini-PCI slots on the board, two on the bottom and two on top. Each of the four slots can house a different frequency radio. This opens up some interesting possibilities including 2.4 GHz backhaul systems being part of a mesh with 5.8 GHz backhauls. Since the service and backhaul radios are distinct, it is possible to use a service radio to bridge over from a 5.8 GHz backhaul to 2.4 GHz backhaul. The 4325 Mobility Relay node on the bottom left has joined the mesh even though the upper links are 5.8 GHz (blue) through the service radio (pink).  See: Radio and Protocol Agnostic Approach

Man-wearable Single Radio Modules.

Meshdynamics Interoperable framework supports both multi-radio and single radio modules (shown above). The compact multi-radio units form the core Mobile Mesh Backhaul. Communications at the edge of the network are supported by single radio mesh capable portable units to provide communication and connectivity at the network edge.

GPS Position Location Option. 

See GPS Options. The GPS location information is transmitted periodically with the mesh node heart beat. The mesh node location is automatically updated on the NMS. The NMS uses imported maps and dynamically manages the background image movement to ensure that the current location is correctly depicted.  

P3MTM Persistent Mobile Mesh.

A cluster of mobile nodes automatically form a network with each other. If the cluster physically separates into two smaller clusters, each will then become its own independent network.  If two separate clusters/networks physically come together, one single network will form and all nodes + associated clients will then be able to share data. In a deployed combat environment in Iraq, vehicle-mounted nodes demonstrated reliable connectivity between convoy vehicles in simultaneous motion. Networks split and reformed dynamically and in real time. Applications supported by Meshdynamics systems operated flawlessly as vehicles moved through rugged terrain. Illustration  Press Release  Application Notes  Patent

Persistent Base VoiceTM (PBV).

VOIP phones function even when the SIP gateway is not reachable: the mesh nodes act as a temporary proxy SIP server till nodes rejoin the main mesh.   Illustration  Press Release  Application Notes Patent 
 
Network Aware Machine Controller Framework

Machine controller applications, running on the mesh nodes, monitor and control enterprise assets at the network edge. More
Meshdynamics works closely with our source code licensees to simulate and prototype OEM product offerings and solutions.
For more information please see:  The Abstracted Network for Enterprises and the Internet Of Things
  
 
Related Links

 
MD4000 Layout Design. Root and relay placements, modeling uplink and downlink spreads, antenna selection etc. 
MD4000 Installation Guide. Antenna selection, mounting and placement, model configuration, trouble shooting.
MD4000 NMS Software Download Software for configuring nodes. NMS is not needed for the mesh network to run. 
MD4000 NMS Configuration Guide Detailed instructions on setting SSID, Encryption, QoS, VLANs etc.