RS232 Pro Series Relay Control

RS232 Relay 2-Channel 5 Amp SPDT
Screw Terminal Relay Connections

Product Code: R25

R25 RS232 Relay Controller
The R25 offers highly reliable serial
communications for the most demanding applications!
Compliance to ROHS Standards



Control this Device Over the Internet
SignalSwitch.com
Signal Switch Compatible

RS232 Relay 2-Channel 5 Amp SPDT
Screw Terminal Relay Connections

$68.00/ea
 

Connecting the Pro Series to a computer is easy! The R25Pro relay is shown connecting to an optional QS12-F6 Quick Start Kit. A USB to Serial adapter can also be used if you need to connect to a USB port.

Pro Series Relay at a Glance

  • 9600 Baud Operation
  • Relay Status LEDs
  • Control Status of All or Individual Relays
  • Quick Connect Terminal Blocks
  • TTL RS-232 Inputs
  • +12 Volt Operation, 2-Wire RS-232
  • Overkill Transistor Drivers
  • No-Click Power-up
  • 2-Way Communication Capable
  • E3C Compliance
 

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.

Resources:

This Product:

R25
Ratings AC DC
Voltage 240 24
Amperage 5 5
RS232 Relay 2-Channel 5 Amp SPDT
Screw Terminal Relay Connections
Stock#: R25 $68.00
 

Related Products:

R25RS
RS-232 Relay 2-Channel 5-Amp Pro Series
Stock#: R25RS $80.00
 

Quick Start Kit Available

QS12 Quick Start Kit
Kit includes a high quality regulated switcher supply, serial cable, and RSIO adapter
Stock#: QS12-F6 $49/ea
 

Desktop Control

N-Button Lite
Desktop Control & Monitoring
N-Button creates up to 8 desktop widgets to control relays without any programming.

Order Today with This Board for Only $29
Stock#: N-Button Lite $45
 
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Dual Relay with Quick Connect Terminal Blocks

Control One or Both Relays with Two-Way Communication
Quick Start Kit Available for Easy RS232 Connection
Highly Reliable Relay Board For Demanding Applications

 

RS-232 Serial Relay Controller

Our RS-232 Relay Boards are fully E3C complaint, allowing up to 256 NCD devices to share a single RS-232 serial port.  Mix and match up to 256 devices in any combination.  Speak to each device individually or all devices at once.

To control the this Relay Controller,  simply connect a data and ground wire between the Relay Controller and computer or microcontroller. Provide +12 Volts DC to the board, and send ASCII character codes to control the relays.  The Command Set can be found in the Product Manual.

Even a no-frills design deserves a high-quality driver stage, and that's exactly what we put on our Serial Relay Controllers.  Fast-reacting flyback diodes help shunt dangerous voltages away from the driver circuit.

Features include no-click startup, LED status lights, and E3C compliance.  Relays can be controlled at 9600 baud and the board is compatible with ANY computer or microcontroller capable of delivering RS-232 data.

Connect this board to the USB port of your computer using a USB to Serial adapter.  The USB to Serial Adapter is to be used with the Quick Start Kit and is available at checkout.

Fully E3C Complaint RS232 Relay

Our RS-232 Relay Boards are fully E3C complaint, allowing up to 256 NCD devices to share a single RS-232 serial port. Mix and match up to 256 devices in any combination. Speak to each device individually or all devices at once.

To control the this Relay Controller, simply connect a data and ground wire between the Relay Controller and computer or microcontroller. Provide +12 Volts DC to the board, and send ASCII character codes to control the relays.

Even a no-frills design deserves a high-quality driver stage, and that's exactly what we put on our Serial Relay Controllers. Fast-reacting flyback diodes help shunt dangerous voltages away from the driver circuit.

Features include no-click startup, LED status lights, and E3C compliance. Relays can be controlled at 9600 baud and the board is compatible with ANY computer or microcontroller capable of delivering RS-232 data.

NCD Component Library

Fully functioning programs for R25, R210, R220 and R230 are included with the NCD Component Library. 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.  The NCD Component Library is a plug-in for the Visual Studio 2005/2008 that greatly simplifies the communications to the NCD product line.  The samples can be run in Visual Studio and fully customizable to your needs.  Two different dual channel samples are available to turn on and off the relays, read the status of the relays and retrieve startup default state of relays.  To view screen shots of each sample visit our NCD Component Library Page.  Start by downloading the FREE NCD Component Library and you will be communicating with any NCD device faster that ever! 


R2XSample1.exe 2 Relay Control Sample 1
The above sample demonstrates control and status read of 2 Relays.  Compatible with all R2x RS-232 Series Relay Controllers.
The above screen shot shows one of two fully functioning dual channel samples that are available with the NCD Component Library.  View all the examples on our NCD Component Library Page.

Desktop Relay Control

N-Button & N-Button Lite is software that allows you to configure buttons to control relays and read the status of those relays without programming. You can also create meters for reading variable input sensors connected to the board in real time!  N-Button will allow you to create unlimited widgets and N-Button Lite will allow you to create up to 8 widgets.

Relay Button widgets turn relays on/off directly. It has never been so easy to control relays before.
 
Relay Status widgets show status of the relay automatically right on the desktop!

N-Button Lite is available as a free download. Look for the Desktop Control section to the right to download.

N-Button Lite version supports up to 8 widgets. If you want to add more than 8 widgets, you need upgrade to the standard version.

Save 40% on N-Button Today
Limited time offer! Order the N-Button Lite with a relay board and get it for the unbelievable price of just $29.00. That's a discount of 40% off the retail price! If you purchase the full N-Button it's just $99.00 with the purchase of a relay board and that's a 41% savings off retail price! Desktop control, sensor meters and backgrounds plus all the customization for just one low price, purchase your copy of N-Button Lite today.

Quick Start Kits

Also available is our QS12-F6 Quick Start Kit. Kit includes a high quality regulated switcher supply, serial cables, and an RSIO adapter board used to add a standard serial and power connector to this relay controller.

Quick Start Kit: QS12-F6
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 (shown below).
QS12-F6 $49

Resources


2-Channel 5-Amp Relay Board