National Control Devices: 4-Channel 3-Amp DPDT Relay Controller with RS-232 and Relay Interface

RS232 Relay Control with Terminal Block & RS232 Interface

4-Channel 3-Amp DPDT Relay Controller with RS-232 and Relay Interface

Product Code: R43DPDTCNRS

Convenient Terminal Blocks for easy electronic connections and Integrated RS232 and power connections the R43DPDTCNRS provides reliable serial communications and easy setup.

Control this Device Over the Internet

Signal Switch Compatible

4-Channel 3-Amp DPDT Relay Controller with RS-232 and Relay Interface

$119.00/ea

Setup for the R43DPDTCNRS RS232 relay shown above with onboard Serial and power connections. Simply Connect the Serial Interface to your Relay Controller, connect the Power and Serial Cable and start sending commands.

CNRS Series Relay at a Glance

DPDT Relay Configuration
9600 Baud Operation
Relay Status LEDs
Integrated standard serial and power connector
Convenient Terminal Blocks for easy electronic connections
E3C Compliant
Programmable E3C Device Number
High-Quality Sealed Relays
Overkill Transistor Drivers
+12 Volt Operation, 2-Wire RS-232
No-Click Power-up
See Manual for Outline Dimensions

Introduction to Relay Control

Learn how computer controlled relays communicate and control

Intro to Wired Communications

Learn the basics of wired communications and find the right wired controller for your application

Induction Suppression

Learn about Induction Suppression and how to counter it using Capacitors

How to Find the Com Port

Learn how to find the Com Port that your Device is using

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.

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.

Resources:

NCD Base Station Software Download Manual E3C Complient NCD Component Library Wiring Diagrams

This Product:

R43DPDTCNRS

Ratings	AC	DC
Voltage	120	12
Amperage	3	3

	4-Channel 3-Amp DPDT Relay Controller with RS-232 and Relay Interface
Stock#: R43DPDTCNRS	$119.00

Related Products:

R43DPDT

	Quad 3-Amp DPDT Signal Relay Controller Board
Stock#: R43DPDT	$99.00

R43DPDTCN

	4-Channel 3-Amp DPDT RS-232 Relay Controller with Relay Interface
Stock#: R43DPDTCN	$109.00

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	$49.00

Questions?

At AccessNCD we give you access to NCD technicians, developers and other customers! Our highly trained technicians and developers responding are the same ones designing and using these boards. If you are working on a sensitive project your questions can be posted privately without being posted to the public forum. Visit Today!

QUANTITY DISCOUNTS UP TO 100 PIECES ARE BUILT INTO OUR SHOPPING CART. CHANGE YOUR ORDER QUANTITY TO SEE QUANTITY PRICING.

Shipping and Payment Information
Warranty Information
National Control Devices, LLC www.controlanything.com Since October, 1995 .

Relay Control with Terminal Block & RS232 Interface

Integrated standard serial and power connector
Convenient Terminal Blocks for easy electronic connections
Highly Reliable Relay Board For Demanding Applications

RS-232 Serial Relay Controller

This relay controller was developed for users with low-current, low-signal switching applications such as telecommunications, networking, video, line-level audio, and much more.

This relay is equipped with terminal blocks for convenient connection of electronic devices. This controller also has on-board serial and power connector. Simply connect the power and serial cables and start sending commands. Power supply and serial cable are available during checkout.

This device uses DPDT relays. A single DPDT relay is made up of 2 SPDT switches. So each relay acts as two switches that are activated at the same time. This allows two independent signals to be switched at one time. In effect, there are two independent switches on a single DPDT relay.

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.

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

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

This Relay Controller is 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.

Connect this board to the USB port of your computer using a USB to Serial adapter. The USB to Serial Adapter is available at checkout.

NCD Component Library

Fully functioning programs for the Pro Series Controllers 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. Four different Pro Series samples are available including Relay Control, Read Status and Timing Features , 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!

The above sample demonstrates control and status read of up to 8 Relays. Compatible with all Pro (NOT ProXR) Series Relay Controllers, Including 4 and 8-Channel SPDT and DPDT Versions.

The above screen shot shows one of the four available fully functioning Pro Series samples that are available with the NCD Component Library. View all the examples on our NCD Component Library Page.

Desktop Relay Control

N-Button creates widgets or buttons to control up to eight relays without any programming. A new button will be created and placed on the desktop of your computer for each relay that you want to control. N-Button Lite supports Serial Port/ USB and Network connection between PC and relay board. N-Button Manager makes it easy to add any type of button to the desktop and change the properties.

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.

Essential Accessories: PWR12 and SER
These Accessories provide everything you need to begin using your RS232 relay controller. Accessories needed for this board are a high quality regulated switcher supply and a serial cable (shown below). These items are available at checkout when purchasing the controller.

PWR12 12 Volt 1.25 Amp Power Supply	$24/ea	SER 6 ft. Serial Cable DB9M-DB9F	$6/ea

	NEW TO RS232 COMMUNICATIONS? GET STARTED HERE Click the above link for an exclusive article on RS232 Communications
RS232 Relay Article	RS232 Relay Article
Download Manual	Download the R45/R410 R85/R810 Pro Product Manual
E3C Complient	Download E3C Complient Specs
NCD Component Library	The NCD Component Library is a Plug-In for Visual Studio 2005/2008 that greatly reduces software development time, effectively reducing most control operations to a single line of code. This free download includes four example applications compatible with the Pro Series.
Wiring Diagrams	These wiring diagrams will help you understand how to connect to your devices and use relays as a form of control logic

4-Channel 3-Amp DPDT Relay Controller with RS-232 and Relay Interface

Quantity in Basket: None
Code: R43DPDTCNRS
Price: $119.00
Shipping Weight: 0.50 pounds

RoHS (Lead Free) Options:

	Non-RoHS Compliant
	RoHS Compliant (+$10)

Do you need a Power Supply?:

	No Power Supply will be Included
	120VAC to 12VDC 1.25A 60Hz USA Computer Grade Regulated Power Supply (+$24)
	100-240VAC to 12VDC 1.5A 50/60Hz International Computer Grade Regulated Power Supply with 4 Adapters (+$36)

Do you need a Serial Cable?:

	No Serial Cable will be Included
	6 Foot Serial Cable DB9M to DB9F (+$6)

Quantity:

4-Channel 3-Amp DPDT Relay Controller with RS-232 and Relay Interface

Computer Control

ProXR Series

ProXR: Expandable Computer Controlled Relays

The ProXR Series Controller allow computers to read contact closure inputs, analog to digital converters and control up to 256 Relays using a single computer interface. ProXR series controllers focus on expansion for industrial control applications.

Computer Interface:
Network and Internet Options
Ethernet Web-i Web Page Relay	2	4	8	16	24	32	Solid State Relays
Ethernet TCP/IP and Virtual COM	2	4	8	16	24	32	Solid State Relays
WiFi TCP/IP	2	4	8	16	24	32	Solid State Relays
Wireless Options
802.15.4 (Most Popular)	2	4	8	16	24	32	Solid State Relays
Bluetooth	2	4	8	16	24	32	Solid State Relays
XSC Long Range	2	4	8	16	24	32	Solid State Relays
ZigBee Mesh	2	4	8	16	24	32	Solid State Relays
Wired Options
RS-232 Serial	2	4	8	16	24	32	Solid State Relays
USB	2	4	8	16	24	32	Solid State Relays
Fiber Optic	2	4	8	16	24	32	Solid State Relays

Expansion Boards
XR Relay Expansions			4	8	16	24	32	Solid State Relays

UXP Expansions

Potentiometers

Contact Closure Inputs

A/D Conversion

ProXR Lite Relays

Computer Controlled ProXR Lite Relays

The ProXR Lite product line allows computers to read up to 8 analog inputs and control up to 8 relays.
Non-Expandable, the ProXR Lite Product Line focuses on interchangeable Computer Interface Modules and Low Cost

Computer Interface:	Number of Relays on Controller:
Network and Internet Options
Ethernet	1	2	4	8	Solid State Relays
Ethernet with Web Interface	1	2	4	8	Solid State Relays
WiFi	1	2	4	8	Solid State Relays
Wireless Options
802.15.4 (Most Popular)	1	2	4	8	Solid State Relays
Bluetooth	1	2	4	8	Solid State Relays
XSC Long Range	1	2	4	8	Solid State Relays
ZigBee Mesh	1	2	4	8	Solid State Relays
Wired Options
RS-232 Serial	1	2	4	8	Solid State Relays
USB	1	2	4	8	Solid State Relays

Low Cost Relays

Low Cost Relays

Focusing on Cost Reduction and High Volume Manufacturing, the Low Cost Series are No-Frills Relay Controllers that offer Basic Computer Control at Low Communications Speed.

Computer Interface: Number of Relays on Controller:

Ultra Low Cost

Wired Low Cost Relays 1 2

Wireless Low Cost Relays 1 2

Professional Grade Low Cost

Wired Relays 1 2 4 8

Wireless Relays 1 2

Computer Interface:	Number of Relays on Controller:
Ultra Low Cost
Wired Low Cost Relays	1	2
Wireless Low Cost Relays	1	2
Professional Grade Low Cost
Wired Relays	1	2	4	8
Wireless Relays	1	2

Android Relays

Android Relay Control

Android Relays use wireless and internet technologies to communicate with your android smart phone or tablet through free apps available on Google Play. More Coming Soon

Communication Technology	Number of Android Relays:
Web Relay - Android Relay Control Over Internet	1	2	4	8	Solid State Relays
WiFi - Android Relay Control Over WiFi LAN/Internet	1	2	4	8	Solid State Relays
Bluetooth - Android Relay Control Over Bluetooth	1	2	4	8	Solid State Relays

iPhone Relays

iPhone Relays

iPhone Relay Control

iPhone Relay Control allows you to use your iPhone or iPad to activate relays with our Web-i devices.

Communication Technology Number of iPhone Relays:

Web-i - iPhone Relay Control via Web-i 1 2 4 8 Solid State Relays

Communication Technology	Number of iPhone Relays:
Web-i - iPhone Relay Control via Web-i	1	2	4	8	Solid State Relays

Stand-Alone

Reactor Relays

Reactor: Sensor Controlled Relays

Activate Relays when Sensors Reach Limits. Trigger Timers, Counters, and Events.
Use a Computer to Setup the Reactor, then Let the Reactor Work by itself without a computer.
Manually Take Control of Relays from Anywhere in the World using a Computer as needed.

Computer Interface:	Number of Relays on Controller:
Network and Internet Options
Ethernet	1	2	4	8	Solid State Relays
Ethernet with Web Interface	1	2	4	8	Solid State Relays
WiFi	1	2	4	8	Solid State Relays
Wireless Options
802.15.4 (Most Popular)	1	2	4	8	Solid State Relays
Bluetooth	1	2	4	8	Solid State Relays
XSC Long Range	1	2	4	8	Solid State Relays
ZigBee Mesh	1	2	4	8	Solid State Relays
Wired Options
RS-232 Serial	1	2	4	8	Solid State Relays
USB	1	2	4	8	Solid State Relays

Key Fob Relays

Key Fob Reactor: Remote Controlled Relays

Activate Relays with a Remote Control Key Fob. Trigger Timers, Counters, and Events.
Use a Computer to Setup the Key Fob Reactor, then Let the Key Fob Reactor Work by itself without a computer.
Manually Take Control of Relays from Anywhere in the World using a Computer as needed.

Computer Interface:	Number of Relays on Controller:
Network and Internet Options
Ethernet	1	2	4	8	Solid State Relays
Ethernet with Web Interface	1	2	4	8	Solid State Relays
WiFi	1	2	4	8	Solid State Relays
Wireless Options
802.15.4 (Most Popular)	1	2	4	8	Solid State Relays
Bluetooth	1	2	4	8	Solid State Relays
XSC Long Range	1	2	4	8	Solid State Relays
ZigBee Mesh	1	2	4	8	Solid State Relays
Wired Options
RS-232 Serial	1	2	4	8	Solid State Relays
USB	1	2	4	8	Solid State Relays

Taralist Relays

TaraList: Time Controlled Relays

Time Schedule Activated Relays with Computer Interface. Use a Computer to Setup the Time Schedule.
Taralist Series Controllers do not require a computer after initial configuration.
Manually Take Control of Relays from Anywhere in the World using a Computer as needed.

Computer Interface:	Number of Relays on Controller:
Network and Internet Options
Ethernet	1	2	4	8	16	24	32+	Solid State Relays
Ethernet with Web Interface	1	2	4	8	16	24	32+	Solid State Relays
WiFi	1	2	4	8	16	24	32+	Solid State Relays
Wireless Options
802.15.4 (Most Popular)	1	2	4	8	16	24	32+	Solid State Relays
Bluetooth	1	2	4	8	16	24	32+	Solid State Relays
XSC Long Range	1	2	4	8	16	24	32+	Solid State Relays
ZigBee Mesh	1	2	4	8	16	24	32+	Solid State Relays
Wired Options
RS-232 Serial	1	2	4	8	16	24	32+	Solid State Relays
USB	1	2	4	8	16	24	32+	Solid State Relays

MirC Relays

MirC: 1-Way Remote Contact Closure Control

The MirC Product Line Consist of TWO Controllers, Offering Contact Closure Inputs in One Location that Control Relays in a Remote Location. The Transmitter Shows the Status of the Receiver. Smart Features optionally Turn Off Remote Relay if Communications is Lost. Sold in Pairs ONLY.

Computer Interface:	Number of Relays on Controller:
Internet Relay Control with Global Access
Network/Interned Based Contact Closure Controlled Relays	1	2	4	8	Solid State Relays
Wireless Option
Wireless Contact Closure Controlled Relays	1	2	4	8	Solid State Relays
Secure/Encrypted Wireless Contact Closure Controlled Relays	1	2	4	8	Solid State Relays
Wired Option
Direct Wired Contact Closure Controlled Relays	1	2	4	8	Solid State Relays

MirX Relays

MirX: 2-Way Remote Contact Closure Control

The MirX Product Line Consist of TWO Controllers, Offering Contact Closures and Relays on Each Controller. The Contact Closure Inputs at Location A control Relays at Location B. The Contact Closure Inputs at Location B control Relays at Location A. Each Controller Remotely Controls the Other. Smart Features optionally Turn Off Relays if Communications is Lost between the Two Controllers. Sold in Pairs ONLY.

Computer Interface:	Number of Relays on Controller:
Internet Relay Control with Global Access
Network/Interned Based Contact Closure Controlled Relays	1	2	4	8	Solid State Relays
Wireless Option
Wireless Contact Closure Controlled Relays	1	2	4	8	Solid State Relays
Secure/Encrypted Wireless Contact Closure Controlled Relays	1	2	4	8	Solid State Relays
Wired Option
Direct Wired Contact Closure Controlled Relays	1	2	4	8	Solid State Relays

Browse by Interface

Interface Technologies

Computer Interface:	Number of Relays on Controller:
Network and Internet Options
Ethernet	1	2	4	8	16		32	Solid State Relays
Ethernet with Web Interface	1	2	4	8	16		32	Solid State Relays
WiFi	1	2	4	8	16		32	Solid State Relays
WiFi with Web Interface	1	2	4	8	16		32	Solid State Relays
Wireless Options
802.15.4 (Most Popular)	1	2	4	8	16	24	32	Solid State Relays
Bluetooth	1	2	4	8	16	24	32	Solid State Relays
XSC Long Range	1	2	4	8	16	24	32	Solid State Relays
ZigBee Mesh	1	2	4	8	16	24	32	Solid State Relays
Wired Options
RS-232 Serial	1	2	4	8	16	24	32	Solid State Relays
USB	1	2	4	8	16	24	32	Solid State Relays
Fiber Optic		2	4	8	16	24	32	Solid State Relays

Additional Products

A/D Converters

Analog to Digital Conversion Boards

Computer Interface:	Number of Channels on Board:
Wired
Serial	16	32	48
USB	16	32	48
Wireless
802.15.4 (Most Popular)	16	32	48
Bluetooth	16	32	48
XSC Long Range	16	32	48
ZigBee Mesh	16	32	48
Expansion Boards
UXP Expansions	16

Contact Closure Inputs

Contact Closure Input Monitors

Computer Interface:	Number of Channels on Board:
Wired
Serial	16
USB	16	32	48
Wireless
802.15.4 (Most Popular)	16	32	48
Bluetooth	16	32	48
XSC Long Range	16	32	48
ZigBee Mesh	16	32	48
Expansion Boards
UXP Expansions	16	32	48

Product Accessories

Accessories

Power and Interface	Power Supplies	Communication Modules	Additional
Sensors
High Power Switching	Din Rail Hardware	Din Rail Power	UT 4 Terminals
Din Rail Heat Sinks	Din Rail AC Contactors	Din Rail Dc Contactors
Enclosures

Retail Software

Third-Party Retail Software

Product Type:

N Button

Relay Timer

Quick Timer

PTZ Software

Product Type:
N Button
Relay Timer
Quick Timer
PTZ Software

Additional Products

Miscellaneous Products and Accessories

Product Type:
Wireless Modems
Digital Potentiometers
Enclosures
Keypad Encoders
Microcontrollers
Mirror Modules
Wireless Mirror Modules
Motor Controllers
Wireless Controllers
Recovery Kits
Firmware Upgrades