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 many example applications covering a wide range of topics.
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.
A Basic RS232 Relay that's a
Step Above the Compitition!
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.
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.
Setup for the R120RS RS232 relay shown above. Simply connect the Power and Serial Cables and start sending commands.
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.
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.
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