Ethernet DPDT Relay

Network Relay Boards 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.

Computer Controlled Switching from Anywhere on the Network

An Ethernet Relay Board will Allow Computer Controlled Switching from Any Computer Connected to a 10/100 Ethernet Network. The Ethernet Relay Board Connects to the Ethernet Port of your Local Network Hub, Allowing Computer Controlled Switching from Anywhere on the Network. Current versions offer Relay Control + 8-Channels 8/10-Bit A/D, or Relay Control + UXP Expansion Port. All versions include an XR Expansion Port for adding additional relay banks. Using our Standardized ProXR Command Set.

Ethernet DPDT Communications

Ethernet Interface Mounts as a COM Port on your PC Through your LAN
Supports Telnet and Data Encryption with password protection
Embedded Digi Connect Wi-ME Ethernet Interface and Web Server from www.digi.com
Plug in, open the COM port and start sending commands
Control one relay at a time or all relays at once with manual and automatic refreshing command set
Control up to 256 relays
CPU status LEDs show command processing Activity
SignalSwitch Compatible

Ethernet DPDT Relay

Our Ethernet DPDT boards offer your choice of 1, 3 or 5 amp relays and are available in 4, 8 and 16 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. All Ethernet 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. 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.

Easy Software Development

Communications and software development is very easy, simply write your software to speak to the RS-232 serial port (COM port of your PC), and install the included RealPort Drivers that allow you to map a COM port to an I.P. address. So you do not have to know anything about Ethernet communications to speak to the device.

Many Communication Protocols for Advanced Users

AdAdvanced users may want to employ other communication protocols to speak the the Ethernet Relay Controller. NCD Ethernet Relay Controllers can also be controlled using Telnet. I.P. Addresses and are automatically or manually assigned. NCD Ethernet Relay Controllers also support security protocols such as Shared Key, WEP, WPA, and Cisco LEAP with support for WEP, TKIP, and CCMP data encryption.

Wi-Fi 802.11b DPDT Available

We also carry a complete line of DPDT WiFi Boards! A Wi-Fi Relay Board will Allow Computer Controlled Switching from Any Computer Connected to your Network. Wi-Fi devices also supports Telnet and Data Encryption with Password Protection. To view our Wi-Fi DPDT Boards please click here.

Articles

New to Ethernet Relay? Click the following links for helpful wireless articles to get you started.

NEADR81DPDTPROXR Ethernet DPDT Relay


A/D Conversion Ethernet Analog to Digital Converter	UXP Expansion UXP Expansion Port	XR Expansion ProXR versions

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 in a room when connected to a microphone Read switches, potentiometers, and analog joysticks applications are limitless, and surprisingly easy to integrate Available on the 4, 8, and 16 channel boards More Information >	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 the 4 and 8 channel boards More Information >	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 all Ethernet DPDT boards More Information >

NCD Network Component

Download NCD Network Component

Ethernet and WiFi users can download the NCD Network Component and talk directly to Ethernet and W-Fi devices through TCP/IP communications. Same great features as the Component Library for network device users allowing you to talk directly to Ethernet or Wi-Fi devices through TCP/IP communications!

Quick Summary of NCD Network Component

Simplifies the communications to NCD Ethernet & WiFi devices
Samples available for specific applications
Samples available for specific relays
Source code included so you can customize the sample to fit your needs
All samples are FREE
SignalSwitch Compatible

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 NCDNetworkComponentSetup.zip file from the Software Page.

Download NCD Network Component

Over 40+ samples included with this download! Start by downloading the NCDNetworkComponentSetup.zip file and you will be communicating with any NCD Ethernet & WiFi device faster that ever! NCD Network Component Library - Free Download

NCD Network Component Library - Free Download

Visit our Software Page

Introduction to Relay Control

Learn how computer controlled relays communicate and control

Intro to Wireless Communications

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

Induction Suppression

Learn about Induction Suppression and how to counter it using Capacitors

Introduction to A/D

Learn about Analog to Digital Conversion and its uses

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 wireless communications and the differences between wireless 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.

Ethernet DPDT Relay Controllers

Displaying 1 - 18 of 18 Products in this Category.

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NEADR41DPDTPROXR

4 Relays
1 Amp DPDT
Ethernet Communication
Ideal Use: Signal Switching
ProXR Series
Learn More

$270.00/ea

NEADR43DPDTPROXR

4 Relays
3 Amp DPDT
Ethernet Communication
Ideal Use: Signal Switching
ProXR Series
Learn More

$280.00/ea

NEADR45DPDTPROXR

4 Relays
5 Amp DPDT
Ethernet Communication
Ideal Use: Signal Switching
ProXR Series
Learn More

$290.00/ea

NEADR81DPDTPROXR

8 Relays
1 Amp DPDT
Ethernet Communication
Ideal Use: Signal Switching
ProXR Series
Learn More

$300.00/ea

NEADR83DPDTPROXR

8 Relays
3 Amp DPDT
Ethernet Communication
Ideal Use: Signal Switching
ProXR Series
Learn More

$320.00/ea

NEADR85DPDTPROXR

8 Relays
5 Amp DPDT
Ethernet Communication
Ideal Use: Signal Switching
ProXR Series
Learn More

$340.00/ea

NER161DPDTPROXR

16 Relays
1 Amp DPDT
Ethernet Communication
Ideal Use: Signal Switching
ProXR Series
Learn More

$466.00/ea

NER163DPDTPROXR

16 Relays
3 Amp DPDT
Ethernet Communication
Ideal Use: Signal Switching
ProXR Series
Learn More

$506.00/ea

NER165DPDTPROXR

16 Relays
5 Amp DPDT
Ethernet Communication
Ideal Use: Signal Switching
ProXR Series
Learn More

$546.00/ea

NEUXPR161DPDTPROXR

16 Relays
1 Amp DPDT
Ethernet Communication
Ideal Use: Signal Switching
ProXR Series
XR and UXP Expansion Ports
Learn More

$466.00/ea

NEUXPR163DPDTPROXR

16 Relays
3 Amp DPDT
Ethernet Communication
Ideal Use: Signal Switching
ProXR Series
XR and UXP Expansion Ports
Learn More

$506.00/ea

NEUXPR165DPDTPROXR

16 Relays
5 Amp DPDT
Ethernet Communication
Ideal Use: Signal Switching
ProXR Series
XR and UXP Expansion Ports
Learn More

$546.00/ea

NEUXPR41DPDTPROXR

4 Relays
1 Amp DPDT
Ethernet Communication
Ideal Use: Signal Switching
ProXR Series
XR and UXP Expansion Ports
Learn More

$270.00/ea

NEUXPR43DPDTPROXR

4 Relays
3 Amp DPDT
Ethernet Communication
Ideal Use: Signal Switching
ProXR Series
XR and UXP Expansion Ports
Learn More

$270.00/ea

NEUXPR45DPDTPROXR

4 Relays
5 Amp DPDT
Ethernet Communication
Ideal Use: Signal Switching
ProXR Series
XR and UXP Expansion Ports
Learn More

$290.00/ea

NEUXPR81DPDTPROXR

8 Relays
1 Amp DPDT
Ethernet Communication
Ideal Use: Signal Switching
ProXR Series
XR and UXP Expansion Ports
Learn More

$300.00/ea

NEUXPR83DPDTPROXR

8 Relays
3 Amp DPDT
Ethernet Communication
Ideal Use: Signal Switching
ProXR Series
XR and UXP Expansion Ports
Learn More

$320.00/ea

NEUXPR85DPDTPROXR

8 Relays
5 Amp DPDT
Ethernet Communication
Ideal Use: Signal Switching
ProXR Series
XR and UXP Expansion Ports
Learn More

$340.00/ea

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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