The BreadCrumb ME4 is a rugged wireless device that forms a mesh network when used in conjunction with other BreadCrumb systems.

The ME4 is our mid-level BreadCrumb solution and is an ideal alternative for adding wireless infrastructure and mobile nodes into your existing network. This system can be deployed in a variety of wired and wireless platforms such as LTE, satellite, and Wi-Fi.

The ME4 offers unparalleled reliability, performance, scalability, and security to support virtually any application, operating flawlessly in even the most challenging environments. While the LX5 is recommended to build your core Rajant mesh infrastructure, the ME4 is an excellent solution to expand coverage within your private wireless network.

InstaMesh is the advanced, patented protocol developed by Rajant that directs the continuous and instantaneous forwarding of wireless and wired connections. It enables complete network mobility, robust fault tolerance, high throughput, and low latency with very low maintenance and administrative requirements.

Because InstaMesh operates at Layer 2 and does not use a root node or LAN Controller, mobility and bandwidth are maximized. No matter how you configure your network, InstaMesh networking software always determines the most efficient pathway between any two points, even when those points are in motion. 

Bread Crumb Network Diagram

This diagram shows how your Rajant mesh network can adapt to the changes caused by the movement of Node E. New links are established in real-time keeping the network available, intact and secure.

Key Features

  • Innovative networking software, enabling the network to quickly adapt to rapidly-deployed and quickly- or constantly-moving network elements
  • Multiple transceiver configurations for high levels of network reliability, redundancy and diversity, and fewer problems due to interference, congestion, and equipment outages
  • Radio frequencies – 900 MHz, 2.4 GHz, 4.9 GHz, 5 GHz and others
  • Two antenna-port configurations with 2x2 MIMO (multiple-input, multiple-output), substantially increasing the capacity of a transceiver
  • Support for several strong cryptographic options used for data and MAC-address encryption and per-hop, per-packet authentication
  • Lightweight and portable
  • Rugged and environmentally sealed enclosure
  • High bandwidth for data, voice, and video applications
  • Scalability to hundreds of mobile, high-bandwidth nodes
  • Integrated Wi-Fi Access Point service for compatibility with millions of commercial off-the-shelf (COTS) client devices such as laptops, tablets, smart phones, IP cameras, sensors, and other IP devices
  • Self-configuring operation for fast and easy deployments
  • Reliable and fast off-loading to Ethernet via multiple, simultaneous bridgemode links through the Automatic Protocol Tunneling (APT) feature
  • Mesh Clustering to designate per-BreadCrumb sub-meshes that will only mesh with a user-specified series of nodes.


Used by MilitaryUsed by Emergency RespondersUsed by GovernmentNot used in the Commercial sectorNot used by Aid Agencies

Product Code

GRC-BREADCRUMB-ME4 - (pictured)

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