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.
Summary of XR Modules
Compatible with ProXR Series Controllers ONLY
Not a stand-alone controller - MUST be used with a ProXR Series Controller
Add up to 256 Relays to any ProXR Controller
Includes 6" XR Expansion Cable
Different Types of XR Expansion Modules can be Chained Together
Onboard Relay Status LEDs
1, 3 or 5 amp relays available
Power LEDs
Optional Power Supply
Expansion options that are available is covered in the above video.
XR Expansion Modules
XR Expansion Boards have no on-board brains. They are entirely reliant on the brains of a "master" device. A master device is an NCD controller with an XR expansion port and a microprocessor of some kind. Some master devices are wireless, and some master devices have digital I/O and analog to digital conversion capabilities. Some master devices also have on-board relays. The main purpose of the XR port is to add relays to the main controller. When you run out of relays, simply plug in an XR expansion controller that is equipped with the kind of relays you need. All XR Expansion modules are compatible with each other so if you want to add different types of relays you can. For controllers that are equipped with an XR Expansion port (and are suitable master devices for XR Series Expansion Controllers) simply look for PROXR in the part number.
Articles
New to Computer Controlled Relay? Click the following links for helpful wireless articles to get you started.
This movie will explain the different expansion options that can be used with our controllers.
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.
This video will show you what Induction is and how to use Capacitors to Suppress it. Also read our Article on Induction Suppression.
DPDT XR Expansion Boards
Displaying 1 - 15 of 15 Products in this Category.
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.
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
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.
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.
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.
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.
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.
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.