RS232 DPDT Relay

RS232 Relay Board with DPDT Relays Installed

Double Pole Double Throw Relay

A DPDT Relay, Double Pole Double Throw Relay, has a single coil with two arms that move at the same time.  There are two completely separate SPDT switch mechanisms inside a DPDT relay.  A DPDT relay board is most commonly used for signal switching applications, but can be found in high power switching applications as well.

RS232 DPDT Relay Board

RS232 Relay or Serial Relay Controller allows computer controlled switching using the Serial port of your computer.  Select RS232 relays support 8-Channels of 8-Bit / 10-Bit Analog to Digital Conversion (A/D), and include an XR Relay Expansion Port for adding additional relays to the RS232 Relay Controller Board (look for PROXR in the part number).

Supports any COM Port

An RS232 Relay supports any available COM port at any standard baud rate, allowing easy integration into any program that support serial communications. The RS232 Relay is ideally suited for applications that require data collection and control from a single device. Built-in temperature sensor allows temperature monitoring, analog to digital conversion, and relay control from a single device. RS-232 Interface Supports baud rates up to 115.2K Baud.

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Setup for the R45DPDT RS232 relay shown above using the optional QS12 Quick Start Kit. Simply Connect the Serial Interface to your Relay Controller, connect the Power and Serial Cable and start sending commands.

8-Channel 1-Amp DPDT Relay Controller with RS-232 and Relay Interface

    Summary of RS232 DPDT Communications

  • Supports any available COM port
  • Supports 2-way communications
  • Quick Start Kit available for easy PC connection
  • Optional USB to RS232 Adapter allows easy connection to your computer's USB port
  • ProXR versions expandable to control up to 256 Relays using the XR Expansion Port
  • Control one relay or all 256 at once with manual or automatic refreshing command set
  • 1, 3, and 5 amp versions available
  • No special software needed
  • All RS232 DPDT Controllers are SignalSwitch Compatible
4 Channel 1-Amp DPDT Small Signal Relay Controller Board
R41DPDT RS232 DPDT Relay

RS232 DPDT Relay

Our RS232 DPDT boards offer your choice of 1, 3, or 5 amp relays and are available in many channel versions.  Selected RS232 DPDT Relays feature the ProXR Command Set and an XR Expansion Port, simply look for PROXR in the part number.  The XR Expansion Port will allow you to expand any ProXR model board to 256 relays using our XR Expansion Modules

RS232 - The Foundation for all Communication Technologies

While RS-232 is not built into some of today's motherboards, there are many applications where RS-232 is still the best choice.  Using a simple USB to Serial Adapter allows you to use RS-232 devices with ease.  This combination is actually better than using a device with a onboard USB port, because it eliminates most of your EMI problems while maintaining compatibility with today's computers.  RS-232 devices are perhaps versatile and most popular choices because of their ability to adapt to any other communication protocol.  For instance, using 3rd party devices, RS-232 relay controllers can be controlled from GSM modems, Ethernet to Serial Adapters, WiFi to Serial Adapters, USB to Serial Adapters, Bluetooth to Serial Adapters, and Wireless Mesh Network to Serial Adapters.  RS-232 will continue to adapt to all emerging technologies, as the foundation for all communication technologies has provisions for RS-232 communications.

Easy Connection with the Quick Start Kit

The video above shows how easy it is to connect an RS232 Relay to the computer with the optional Quick Start Kit.  The R45Pro 4 Channel Relay Controller is shown connected to the optional QS12 Quick Start Kit. Quick Start Kits provide everything you need to begin using your RS232 Relay Controller.  Kit includes a high quality regulated switcher supply, serial cable, and RSIO adapter.

Articles

New to RS232 Relay? Click the following links for helpful wireless articles to get you started.
QS12 Quick Start Kit Includes Power Supply, Serial Cable and Serial Interface Board
QS12 +12 Volt Quick Start Kit

XR Expansion
ProXR versions
   

Models with the ProXR suffix will feature the ProXR commend set. The ProXR series will allow you to:

  • Send simple commands to activate relays
  • Upgrade without having to re-write your software
  • Activate up to 16 relay timers
  • Control up to 256 total relays using the XR expansion port
  • Full backward/forward compatibility w/the ProXR series command set
  • Look for PROXR in the part number
16-Channel 3A DPDT RS-232 Relay Controller with XR Expansion Port

NCD Component Library

Download NCD Component Library

By downloading the NCD Component Library you will receive over 40 samples from A/D Conversion to Duration and Pulse Timing and best of all it's FREE!! We want the user to be able to experiment with all the different samples available so as of right now the samples cannot be downloaded individually. 

We've "Started" the Programming for You

With the NCD Component Library we've "started" the programming for you.  We say started because these are fully functioning samples but we've also included the source code so you can customize them to your exact needs.  Start by downloading the NCDComponentSetup.zip file from the NCD Component page.
Download NCD Component Library

Over 40 samples included with this download!  To view screen shots of each example visit our NCD Component Library Page.

 

This video is a basic introduction to the world of Computer Controlled Switching and Relays in general.
Also read our "Introduction to Computer Control" Article.

 

Watch to find out the advantages of wired communications and the differences between wired communications.
Also read our Articles on Communication Protocols.

 

This video will show you what Induction is and how to use Capacitors to Suppress it.
Also read our Article on Induction Suppression.

 

Learn about the mechanics, applications, and tricks to Analog to Digital Conversion.
Also read our Article on Analog to Digital Conversion.

 

This movie will show you how to find the Com Port assigned to your Relay Controller.
The first half of the video will show you how to do so in Windows Vista and the second half is using Windows XP.

 

This movie will explain the different expansion options that can be used with our controllers.

RS232 DPDT Relay Controllers

Displaying 1 - 50 of 60 Products in this Category.
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R161DPDTPROXR
  • 16 Relays
  • 1 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • ProXR Series
  • Learn More
$312.00/ea
R163DPDTPROXR
  • 16 Relays
  • 3 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • ProXR Series
  • Learn More
$352.00/ea
R165DPDTPROXR
  • 16 Relays
  • 5 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • ProXR Series
  • Learn More
$392.00/ea
R21DPDTCN
  • 2 Relays
  • 1 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • Economy Series
  • Learn More
$69.00/ea
R21DPDTCNRS
  • 2 Relays
  • 1 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • Economy Series
  • Learn More
$79.00/ea
R23DPDT
  • 2 Relays
  • 3 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • Economy Series
  • Learn More
$64.00/ea
R23DPDTCN
  • 2 Relays
  • 3 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • Economy Series
  • Learn More
$74.00/ea
R23DPDTCNRS
  • 2 Relays
  • 3 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • Economy Series
  • Learn More
$84.00/ea
R25DPDT
  • 2 Relays
  • 5 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • Economy Series
  • Learn More
$69.00/ea
R25DPDTCN
  • 2 Relays
  • 5 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • Economy Series
  • Learn More
$79.00/ea
R25DPDTCNRS
  • 2 Relays
  • 5 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • Economy Series
  • Learn More
$89.00/ea
R321DPDTPROXR
  • 32 Relays
  • 1 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • ProXR Series
  • Learn More
$524.00/ea
R323DPDTPROXR
  • 32 Relays
  • 3 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • ProXR Series
  • Learn More
$604.00/ea
R325DPDTPROXR
  • 32 Relays
  • 5 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • ProXR Series
  • Learn More
$684.00/ea
R41DPDT
  • 4 Relays
  • 1 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • Economy Series
  • Learn More
$89.00/ea
R41DPDTCN
  • 4 Relays
  • 1 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • Economy Series
  • Learn More
$99.00/ea
R41DPDTCNRS
  • 4 Relays
  • 1 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • Economy Series
  • Learn More
$109.00/ea
R43DPDT
  • 4 Relays
  • 3 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • Economy Series
  • Learn More
$99.00/ea
R43DPDTCN
  • 4 Relays
  • 3 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • Economy Series
  • Learn More
$109.00/ea
R43DPDTCNRS
  • 4 Relays
  • 3 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • Economy Series
  • Learn More
$119.00/ea
R45DPDT
  • 4 Relays
  • 5 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • Economy Series
  • Learn More
$109.00/ea
R45DPDTCN
  • 4 Relays
  • 5 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • Economy Series
  • Learn More
$119.00/ea
R45DPDTCNRS
  • 4 Relays
  • 5 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • Economy Series
  • Learn More
$129.00/ea
R81DPDTCN
  • 8 Relays
  • 1 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • Economy Series
  • Learn More
$139.00/ea
R81DPDTCNRS
  • 8 Relays
  • 1 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • Economy Series
  • Learn More
$149.00/ea
R83DPDT
  • 8 Relays
  • 3 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • Economy Series
  • Learn More
$139.00/ea
R83DPDTCN
  • 8 Relays
  • 3 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • Economy Series
  • Learn More
$159.00/ea
R83DPDTCNRS
  • 8 Relays
  • 3 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • Economy Series
  • Learn More
$169.00/ea
R85DPDT
  • 8 Relays
  • 5 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • Economy Series
  • Learn More
$159.00/ea
R85DPDTCN
  • 8 Relays
  • 5 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • Economy Series
  • Learn More
$179.00/ea
R85DPDTCNRS
  • 8 Relays
  • 5 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • Economy Series
  • Learn More
$189.00/ea
ZADR45DPDTProXR_ZRS
  • 4 Relays
  • 5 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • ProXR Series
  • 8 A/D Inputs
  • XR Expansion Port
  • Learn More
$200.00/ea
ZADR81DPDTProXR_ZRS
  • 8 Relays
  • 1 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • ProXR Series
  • 8 A/D Inputs
  • XR Expansion Port
  • Learn More
$210.00/ea
ZADR83DPDTProXR_ZRS
  • 8 Relays
  • 3 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • ProXR Series
  • 8 A/D Inputs
  • XR Expansion Port
  • Learn More
$230.00/ea
ZADR85DPDTProXR_ZRS
  • 8 Relays
  • 5 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • ProXR Series
  • 8 A/D Inputs
  • XR Expansion Port
  • Learn More
$250.00/ea
ZADSR161DPDTPROXR_ZRS
  • 16 Relays
  • 1 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • ProXR Series
  • 8 A/D Inputs
  • XR Expansion Port
  • Learn More
$337.00/ea
ZADSR163DPDTPROXR_ZRS
  • 16 Relays
  • 3 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • ProXR Series
  • 8 A/D Inputs
  • XR Expansion Port
  • Learn More
$377.00/ea
ZADSR165DPDTPROXR_ZRS
  • 16 Relays
  • 5 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • ProXR Series
  • 8 A/D Inputs
  • XR Expansion Port
  • Learn More
$417.00/ea
ZADSR241DPDTPROXR_ZRS
  • 24 Relays
  • 1 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • ProXR Series
  • 8 A/D Inputs
  • XR Expansion Port
  • Learn More
$468.00/ea
ZADSR243DPDTPROXR_ZRS
  • 24 Relays
  • 3 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • ProXR Series
  • 8 A/D Inputs
  • XR Expansion Port
  • Learn More
$528.00/ea
ZADSR245DPDTPROXR_ZRS
  • 24 Relays
  • 5 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • ProXR Series
  • 8 A/D Inputs
  • XR Expansion Port
  • Learn More
$588.00/ea
ZADSR321DPDTPROXR_ZRS
  • 32 Relays
  • 1 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • ProXR Series
  • 8 A/D Inputs
  • XR Expansion Port
  • Learn More
$599.00/ea
ZADSR323DPDTPROXR_ZRS
  • 32 Relays
  • 3 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • ProXR Series
  • 8 A/D Inputs
  • XR Expansion Port
  • Learn More
$679.00/ea
ZADSR325DPDTPROXR_ZRS
  • 32 Relays
  • 5 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • ProXR Series
  • 8 A/D Inputs
  • XR Expansion Port
  • Learn More
$759.00/ea
ZADSR325PROXR_ZRS
  • 32 Relays
  • 5 Amp SPDT
  • Serial Communication
  • Ideal Use: Power Switching
  • ProXR Series
  • 8 A/D Inputs
  • XR Expansion Port
  • Learn More
$524.00/ea
ZUXPR81DPDTProXR_ZRS
  • 8 Relays
  • 1 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • ProXR Series
  • XR and UXP Expansion Ports
  • Learn More
$210.00/ea
ZUXPR820ProXR_ZRS
  • 8 Relays
  • 20 Amp SPDT
  • Serial Communication
  • Ideal Use: Power Switching
  • ProXR Series
  • XR and UXP Expansion Ports
  • Learn More
$279.00/ea
ZUXPR830ProXR_ZRS
  • 8 Relays
  • 30 Amp SPST
  • Serial Communication
  • Ideal Use: Power Switching
  • ProXR Series
  • XR and UXP Expansion Ports
  • Learn More
$319.00/ea
ZUXPR83DPDTProXR_ZRS
  • 8 Relays
  • 3 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • ProXR Series
  • XR and UXP Expansion Ports
  • Learn More
$230.00/ea
ZUXPR85DPDTProXR_ZRS
  • 8 Relays
  • 5 Amp DPDT
  • Serial Communication
  • Ideal Use: Signal Switching
  • ProXR Series
  • XR and UXP Expansion Ports
  • Learn More
$250.00/ea
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