The MDS™ SD Series are industrial wireless solutions that provide long distance communications over licensed radio bands, allowing users to interface to both Ethernet and serial devices such PLCs, RTUs and meters with host monitoring and control systems.

The SD Series is the latest generation of MDS licensed narrowband wireless devices providing exceptional communication performance and reliability to meet demands for IP/Ethernet services as well as support for multiple devices and host systems. The SD is compatible with previous generations allowing for a smooth and controlled migration for existing systems.

Key Benefits

  • Operate IP/Ethernet and serial communication on a single network
  • Connect multiple host systems to a single Access Point radio
  • Connect multiple devices to a single remote radio
  • Implement push communication and report by exception from remote devices
  • Simple, intuitive web based configuration and maintenance
  • Easy migration path from serial to IP/Ethernet
  • Backward compatible with existing MDS x710 networks


  • SD Series Application Advantages

    • Operational temperature range from –40°C to 70°C
    • CSA Class I, Div. 2 groups A,B,C,D for Hazardous Locations
    • IEEE1613*, IEC 61850-3 and EN61000 for electric substation environments
  • Application Flexibility

    • Supports two serial ports and an IP/Ethernet port simultaneously
    • Broad coverage flexibility over distances up to 50 miles
    • Supports Ethernet Bridging, IP to serial and serial to serial communications
    • Low power consumption with sleep mode for solar and battery powered applications
    • Fast-serial features with embedded terminal server functions for serial to IP/
    • Ethernet encapsulation
    • Extend communication paths using single radio store and forward
  • Reliable & Scalable

    • Exclusive, non-shared licensed band operation
    • High performance Media Access Control for asynchronous polling and exception reporting
    • Collision detection and avoidance insures data arrives at destination without lost messages
    • High receive sensitivity for long distance communications
    • Compatible with multiple industry protocols including Modbus, Modbus TCP, and DNP3
  • Secure

    • AES 128-bit data encryption
    • Password protected access
    • VLAN data segregation

    * Requires an external DC to DC converter having floating DC inputs (neither side grounded)

  • Long Range communications

    The MDS SD Series of industrial-strength radios offer secure, reliable, long distance transmission of data for your mission critical applications. The SD Series combines 5 Watt transmit power and exceptional receive sensitivity to support wide coverage areas and maximum performance when difficult terrain or obstructions such as trees and buildings limit the effectiveness of other wireless devices. The SD Series operates in the 100 MHz(SD1), 200 MHz (SD2), 400 MHz (SD4) and 900 MHz (SD9) frequencies and allows users to select the channel size and modulation option best suited to their unique requirements. The combination of these features results in the ideal data acquisition product for error free, long distance communication.