Large Selection
We offer a large selection of 8 Channel RS232 Relays for applications ranging from low power signal switching to high voltage, high current applications. If your looking for a eight channel relay controller we have a configuration to fit every need. 8 Channel Relay Controllers are ideal for computer control applications where small size and high functionality are required. The R810 controller offers compact size and direct connectivity. The ADR810ProXR controller is a full ProXR controller that features the ProXR command set, Analog to Digital Conversion and is expandable to 256 relays! Solid State and DPDT configurations can now be found in an 8 channel relay controller as well.
RS232 Switching with a Serial Port
RS232 Relay or Serial Relay Controllers allow computer controlled switching using the Serial port of your computer. Select NCD Serial Relay Drivers support 8-Channels of 8-Bit / 10-Bit Analog to Digital Conversion (A/D), and include an XR Relay Expansion Port for adding additional relays to the RS232 Relay Controller Board.
Supports any COM Port
An RS232 Relay supports any available COM port at any standard baud rate, allowing easy integration into any program that support serial communications. The RS232 Relay is ideally suited for applications that require data collection and control from a single device. Built-in temperature sensor allows temperature monitoring, analog to digital conversion, and relay control from a single device. RS-232 Interface Supports baud rates up to 115.2K Baud.
Easy Connection with the Quick Start Kit
For 8 Channel Controllers that do not have than integrated serial connection and power connector look for the Quick Start Kit at checkout. The Quick Start Kit will provide easy connection to a serial cable and ships with a power supply and RS232 cable. Connect these RS232 boards 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.
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 & 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.
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Relay Button widgets turn relays on/off directly. It has never been so easy to control relays before. |
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Relay Status widgets show status of the relay automatically right on the desktop! |
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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.