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Serial Relay Controller
Serial Relay Controller
Serial Relay Controller
Serial Relay Controller

Serial Relay Controller 2-Channel 20 Amp SPDT +UXP Expansion Port

$243.17 $240.17

RS232 Relay at a Glance

  • Reliable Sturdy Design
  • Onboard RS232 Interface with Choice of Connector
    – Onboard DB9 Connector:
    – Screw Terminal Connector
    – Off the Board DB9 Connector
  • Connects to Any Available COM Port
  • Read 0 to 5 Volt Sensors
  • Base Station Software Included
    – Point & Click Interface
    – Use to Connect Tto Board
    – Read Sensor Levels
    – Read Status of Relays
    – Manually Trigger Relays
  • Program in almost any language
  • Expandable up to 256 Relays

Product Description

Serial Relay Controller

RS232 Relay with
ProXR Command Set and UXP Expansion Port

The Most Powerful Command Set Available Anywhere
Add Contact Closure, Potentiometers & Analog to Digital Conversion Modules
ProXR – The Most Powerful Relay Control Available!

RS-232 ProXR Relay Controller

This ProXR controller is built with the most powerful command set available anywhere.  Simply put, ProXR is a standardized set of commands for controlling relays.  This controller is also equipped with a UXP Expansion Port for adding capabilities beyond basic relay control specifically for the purpose of speaking to various expansion modules. Where the XR Expansion port allows you to add additional relays to the board, the UXP Expansion Port allows you to add functionality to the board. With the UXP Expansion Port you can add Digital Potentiometers, Contact Closure modules and Analog to Digital Expansion Modules to this board.  We offer a complete line of UXP expansion modules to add to this controller to collect data and process data by custom software that you develop. The applications are limitless and the data that you receive such as A/D Sensors or Contact Closures can easily activate relays when specific levels are reached. See more on our UXP Expansion Page.

Once powered up, the relay controller waits for a command.  A command consists of a few bytes of data.  Usually between 2 and 6 bytes.  Once the command has been received, the controller processes the command, and sends you back ASCII character code 85 to signal the completion of your command.  You can send commands to activate relays, deactivate relays, control all the relays at one time, plus you can send commands that tell a relay to turn on for a few seconds, minutes, or hours.  You can assign 16 timers to any of the 256 relays, and set the timers to go off after the duration has expired.  Look at the ProXR Command Set to see the full list of commands available.

The features list of the ProXR series controllers is extensive.  Our ProXR Software helps get you acquainted with the powerful command set.  To download, look for the ProXR Software in the Resources section to the right and bottom of this page.  The ProXR Manual and the mechanical drawing with dimensions and hole layouts can also be found in the Resources section.

Connect this board to the USB port of your computer using a USB to Serial adapter.

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