915U-2 Wireless Mesh Networking IO & Gateway

The ELPRO 915U-2 Wireless Mesh Networking I/O and Gateway is a multiple I/O node that extends communications to sensors and actuators in local, remote, or difficult to reach locations. Designed with a long range, license-free 900MHz wireless transceiver, the ELPRO 915U-2 is capable of providing IP-based mesh networking across sprawling industrial environments typical of industrial applications.

Capable of ad-hoc mesh networking, roaming and discovery, as well as deterministic mesh, the 915U-2 can serve as an end node, routing node or network gateway. Scalable to thousands of nodes, Gather-ScatterTM and Block Mapping technology offers the efficient utilization of network resources, and eases integration into complex monitoring and control systems. Integrated Modbus server capability allows further I/O expansion through the use of ELPRO 115S Expansion modules.



  • Oil and gas production and distribution
  • Pipeline monitoring and leak detection
  • Mining operations infrastructure
  • Water treatment facilities
  • Water and wastewater systems


  • 902–928 MHz frequency hopping spread spectrum (FHSS) up to 1W RF Power
  • 869 MHz wideband up to 500 mW for Europe
  • Self‑healing IP-based wireless mesh networking
  • Multi-hop repeater and gateway functionality
  • Gather-scatter and block mapping
  • Serial client/server/multicast Modbus TCP to RTU gateway
  • Configurable digital, pulse, and analog I/O to 14‑bit resolution
  • 10/100Base‑T IEEE 802.3 Ethernet
  • Secure 128-bit AES encryption
  • Modbus RTU and TCP support
  • Over-the-air network diagnostics and configuration
  • Optional support for logging of register variables (see 915U-LOG data sheet)
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