Setup for the R25RS RS232 relay shown above with onboard Serial and power connections. Simply connect the Power and Serial Cable and start sending commands. Quick Connect terminal block makes if easy to connect electronics.
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N-Button Lite creates up to 8 desktop widgets to turn relays on/off or read A/D inputs directly without any programming. |
| Stock#: N-Button Lite | $49.00 |
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Comm Operator is a powerful communication tool for serial port, TCP/IP and UDP. It can debug and test RS232 related devices. |
| Stock#: Comm Operator | $59.00 |
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Quick Timer R2X is high resolution programmable timer software to control 2 channel of relay boards. For science project, laboratory experimenter, home automation, etc. |
| Stock#: Quick Timer R2X | $56.00 |
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Relay Timer R2X is programmable timer software for setting timing features of the relay. It works with 2-channel relay controller boards. |
| Stock#: Relay Timer R2X | $56.00 |

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!
Choose a board Configuration That Fits Your Needs
Control One or Both Relays with Two-Way Communication
Highly Reliable Relay Board For Demanding Applications
![]() 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. |
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. | |||
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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.

Learn how computer controlled relays communicate and control

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

Learn about Induction Suppression and how to counter it using Capacitors

Learn about Analog to Digital Conversion and its uses

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

Learn about the Expansion Options available to use with our controllers
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Computer Control
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Visit one of our other great web sites: www.SignalSwitch.com www.relaycontrollers.com |