Short Range Wireless Switch System

The Short Range Wireless Switch System (SRWSS) is designed for short range (up to ½ mile*) and simple wireless PLC control. The SRWSS is the simple solution for applications where faulty wire replacement or new installation of conduit is not possible or practical.

Typical Alarm System Application using the Short Range Wireless Switch System

wireless plc control SRWSS-Application diagram

Additional Applications for the SRWSS Include:


  • The 27 MHz radio frequency signal does not require line of sight
  • Up to 1/2 mile range
  • 1 or 8 discrete digital inputs
  • 1 or 8 relay outputs (5A at 250V contact rating) with several modes of operation
  • Replaces wire or conduit when repair or new installation is not possible or practical
  • NEMA 4X enclosure
  • Performance Guaranteed


The SRWSS is designed to be mounted to a wall or in another enclosure; the transmitter is triggered by supplying 12 VDC to the terminal blocks. This sends a coded set of instructions to the receiver. A two-position DIP switch allows the user to select from four modes of operation which control transmission duration. The receiver has several modes of operation. These modes determine how the output(s) function once a properly coded signal is received. A set of DIP switches located next to the microcontroller allows the user to select the mode of operation for the output(s).

For Technical Specifications Click Here

For SRWSS 1 Installation Instructions Click Here

For SRWSS 8 Installation Instructions Click Here

*The range of all radio products is dependent on local conditions and antenna selection/location.

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