USB Relay

USB Relay Control

USB Relay Controllers allow computer controlled switching using the USB port of your computer.  An NCD USB Relay Board emulates a COM port, allowing you to speak to the relay board using any programming language that supports serial communications.  COM drivers allow you to assign any COM port to the USB Relay Board.  An NCD USB Relay Driver supports 8-Channels of 8-Bit / 10-Bit Analog to Digital Conversion (A/D) or UXP Expansion Port, and includes an XR Relay Expansion Port Except  for adding additional relays to the USB Relay Controller Board.

No programming is required with the new Reactor Series, Key Fob Series and Time Activated Relays!  No computer is required once the board is configured to your needs either!  Our free configuration utility allows you to simply configure the board and your done!
    All the Features You Need
  • USB Interface mounts as a Virtual COM Port on your PC for easy programming and 100% compatibility across ALL operating systems
  • Plug in, open the Virtual COM Port at 115.2K baud, and start sending commands
  • Expandable to control up to 256 Relays using the XR Expansion Port (ProXR Lite NOT expandable)
  • SPDT, SPST, DPDT and Reed Relay versions available
  • 1, 3, 5, 10, 20 or 30 amp available
  • Control one relay at a time or all relays at once with manual and automatic refreshing command set
  • SignalSwitch Compatible

 

4 Channel USB Relay Control
ZADR45PROXR_USB 4 Channel USB Relay Controller

USB Relay

Our USB boards offer your choice of 1, 3, 5, 10, 20 or 30 amp relays and are available in many channel versions with your choice of eight channel 8/10-Bit Analog to Digital Conversion or UXP Expansion Port on selected models, look for AD or UXP in the part number. All are of course SignalSwitch compatible.  Most USB Relays feature the ProXR Command Set (except for the Reactor, Key Fob or Taralist series which do not need to be programmed) and an XR Expansion Port (except the ProXR Lite series which cannot be expanded), 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.  The UXP port will allow you to add Analog to Digital Expansion Modules, Contact Closure Input Modules or Digital Potentiometers to any UXP board.  For more on A/D Conversion and UXP Expansion see below.

USB Reactor Relay

The USB Reactor Relay Series controllers represent the worlds first relay controller capable of making its own intelligent decisions based on user input.  The USB Reactor Relay Series controllers are configured using our free Configuration Utility - no programming needed.  Once configured, the controller works without a computer connected, allowing analog inputs to trigger relays according to the configuration. The USB Reactor Relay was developed to address the needs of customers who need a controller capable of making intelligent decisions without a computer.  Live USB Reactor Relays are configured using a standard USB cable.  Once configured, the Reactor will work on its own.  At any time, a remote computer may read analog inputs and take control of the relays.  The remote computer can later return control back to the Reactor logic.
USB Reactor Relays
2 Channel USB Reactor Relay

USB Key Fob Relay

Put the power of computer controlled switching in your hand!  Key Fob Users are able control relays with the touch of a button you hold in your hand! Touch a button and a command to will be sent to a Reactor Relay Series board that has a key fob chip installed to activate a relay. The Key Fob Relay will be compatible with relays with up to 8 channels. Each Key Fob button can be programmed to control up to 8 relays in any number of ways. The Key Fob Relay will also be able to provide a manual override to the Reactor Series Relay Boards. With USB Key Fob boards are configured using the free configuration utility and uploaded using a standard USB cable.
USB Key Fob Relays
5 Button Key Fob


USB Time Activated Relay

The Taralist series Time Activated Relay Controllers are unlike any other relay timer in the world. The Taralist series have an integrated battery backed Real Time Clock with memory that allows users to control relays based on a time schedule. Connect the controller to your computer with a standard USB cable to setup the time schedule and store your schedule into the Taralist controller - no programming needed. Once stored, the Taralist does not require a computer, and will activate relays according to a schedule that can be as simple or as complex as your application requires.
Time Activated Relays
2 Channel USB Time Activated Relay Controller
   

USB ProXR Lite Relay

The ProXR command set has been available in our controllers since 2004 and have been widely used. We now offer the full ProXR Command set in a high functioning low cost relay and for the first time a 1 channel USB controller.  The ProXR Lite series is NOT expandable, although the firmware still thinks 256 relays are available. The relay portion of the controller only responds to the first 1, 2, 4 or 8 relays in bank 1. We did NOT skip the Analog Input portion of the ProXR Lite. All ProXR lite controllers offer a 8-Channel 8/10-Bit Analog to Digital Converter in addition to relay control. The ProXR Lite responds to the same firmware as the ProXR series controllers and is therefore 100% compatible with any applications designed to work with a ProXR series controller.
USB ProXR Lite Relays
2 Channel ProXR Lite Controller
   

Articles

New to USB Relay? Click the following links for helpful wireless articles to get you started.
USB Relay with DPDT Relays Installed
UADSR241DPDTPROXR 24 Channel USB Relay Controller

A/D Conversion
USB Analog to Digital Converter
UXP Expansion
UXP Expansion Port
XR Expansion
ProXR versions
USB Relay with Analog to Digital Conversion USB Relay with UXP Expansion Port USB Relay with XR Expansion Port

Onboard analog to digital conversion is available on selected models of these controllers! This will allow you to:
  • Read light and temperature levels
  • Easily activate relays when A/D limits are reached
  • Detect audio levels
  • Read switches, potentiometers, and analog joysticks
  • applications are limitless, and surprisingly easy to integrate
  • Available on Select USB Controller boards

UXP is a new standardized data port, specifically for the purpose of speaking to various expansion modules. If the controller you are considering is equipped with a UXP port, you can take advantage of extended commands to speak to our growing line of I/O expansion modules. UXP in the part number allows you to:

  • Add Contact Closure Inputs
  • Add Analog to Digital Inputs
  • Add Voltage Detectors
  • Digital Potentiometer Outputs
  • Available on Select USB Boards

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
  • Available on select USB boards

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.

USB Relay Controllers

Displaying 1 - 18 of 18 Products in this Category.
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KLRR210_USB
Reactor Fob Relay 2-Channel 10-Amp SPDT + 1-Channel 8-Bit A/D with USB Interface
  • 2 Relays - 10 Amp SPDT
  • USB Communications
  • Ideal Use: Power Switching
  • Key-Fob Series
           $204.00               Full Description
KLRR220_USB
Reactor Fob Relay 2-Channel 20-Amp SPDT + 1-Channel 8-Bit A/D with USB Interface
  • 2 Relays - 20 Amp SPDT
  • USB Communications
  • Ideal Use: Power Switching
  • Key-Fob Series
           $216.00               Full Description
KLRR230_USB
Reactor Fob Relay 2-Channel 30-Amp SPST + 1-Channel 8-Bit A/D with USB Interface
  • 2 Relays - 30 Amp SPST
  • USB Communications
  • Ideal Use: Power Switching
  • Key-Fob Series
           $227.00               Full Description
KLRR25_USB
Reactor Fob Relay 2-Channel 5-Amp SPDT + 1-Channel 8-Bit A/D with USB Interface
  • 2 Relays - 5 Amp SPDT
  • USB Communications
  • Ideal Use: Power Switching
  • Key-Fob Series
           $193.00               Full Description
LRR210_USB
Reactor Relay 2-Channel 10-Amp SPDT + 8-Channel 8-Bit A/D with USB Interface
  • 2 Relays - 10 Amp SPDT
  • USB Communications
  • Ideal Use: Power Switching
  • Reactor Series
           $160.00               Full Description
LRR220_USB
Reactor Relay 2-Channel 20-Amp SPDT + 8-Channel 8-Bit A/D with USB Interface
  • 2 Relays - 20 Amp SPDT
  • USB Communications
  • Ideal Use: Power Switching
  • Reactor Series
           $172.00               Full Description
LRR230_USB
Reactor Relay 2-Channel 30-Amp SPST + 8-Channel 8-Bit A/D with USB Interface
  • 2 Relays - 30 Amp SPST
  • USB Communications
  • Ideal Use: Power Switching
  • Reactor Series
           $183.00               Full Description
LRR25_USB
Reactor Relay 2-Channel 5-Amp SPDT + 8-Channel 8-Bit A/D with USB Interface
  • 2 Relays - 5 Amp SPDT
  • USB Communications
  • Ideal Use: Power Switching
  • Reactor Series
           $149.00               Full Description
R210PL_USB
USB Relay 2-Channel 10-Amp SPDT ProXR Lite
  • 2 Relays - 10 Amp SPDT
  • USB Communications
  • Ideal Use: Power Switching
  • ProXR-Lite Series
  • 8 A/D Inputs
  • XR Expansion Port
           $132.00               Full Description
R220PL_USB
USB Relay 2-Channel 20-Amp SPDT ProXR Lite
  • 2 Relays - 20 Amp SPDT
  • USB Communications
  • Ideal Use: Power Switching
  • ProXR-Lite Series
  • 8 A/D Inputs
  • XR Expansion Port
           $143.00               Full Description
R230PL_USB
USB Relay 2-Channel 30-Amp SPST ProXR Lite
  • 2 Relays - 30 Amp SPST
  • USB Communications
  • Ideal Use: Power Switching
  • ProXR-Lite Series
  • 8 A/D Inputs
  • XR Expansion Port
           $155.00               Full Description
R25PL_USB
USB Relay 2-Channel 5-Amp SPDT ProXR Lite
  • 2 Relays - 5 Amp SPDT
  • USB Communications
  • Ideal Use: Power Switching
  • ProXR-Lite Series
  • 8 A/D Inputs
  • XR Expansion Port
           $120.00               Full Description
TLR210_USB
Time Activated Relay 2-Channel 10-Amp SPDT with USB Interface
  • 2 Relays - 10 Amp SPDT
  • USB Communications
  • Ideal Use: Power Switching
  • Taralist Series
           $132.00               Full Description
TLR220_USB
Time Activated Relay 2-Channel 20-Amp SPDT with USB Interface
  • 2 Relays - 20 Amp SPDT
  • USB Communications
  • Ideal Use: Power Switching
  • Taralist Series
           $143.00               Full Description
TLR230_USB
Time Activated Relay 2-Channel 30-Amp SPST with USB Interface
  • 2 Relays - 30 Amp SPST
  • USB Communications
  • Ideal Use: Power Switching
  • Taralist Series
           $155.00               Full Description
TLR25_USB
Time Activated Relay 2-Channel 5-Amp SPDT with USB Interface
  • 2 Relays - 5 Amp SPDT
  • USB Communications
  • Ideal Use: Power Switching
  • Taralist Series
           $120.00               Full Description
ZADR220PROXR_USB
USB Relay Controller 2-Channel 20 Amp SPDT + 8-Channel 8/10-Bit A/D
  • 2 Relays - 20 Amp SPDT
  • USB Communications
  • Ideal Use: Power Switching
  • ProXR Series
  • 8 A/D Inputs
  • XR Expansion Port
           $173.00               Full Description
ZADR230PROXR_USB
USB Relay Controller 2-Channel 30 Amp SPST + 8-Channel 8/10-Bit A/D
  • 2 Relays - 30 Amp SPST
  • USB Communications
  • Ideal Use: Power Switching
  • ProXR Series
  • 8 A/D Inputs
  • XR Expansion Port
           $184.00               Full Description
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