R21DPDT RS232 Relay
RS-232 2-Channel 1-Amp DPDT Small Signal Relay Controller Board
Resources
Product Resources:
| NCD Base Station Software |
 Base Station identifies the controller that is attached to your computer and provides a convenient graphical user interface for controlling and testing your NCD Device. |
| E3C Compliant | This Device is E3C Complaint allowing 256 NCD Devices to Share a Single RS-232 Serial Port. |
| Download Manual | Download the Product Manual |
| Download VB Samples | Download VisualBasic 6 Example Source Code |
| Download Software | Download Example Software and Source Code |
Software Development Tools:
| NCD Component Library | 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. |
Video Resources
(Select a thumbnail to view the video)Introduction to Relay Control
Learn how computer controlled relays communicate and control
Intro to Wired Communications
Learn the basics of wired communications and find the right wired 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
About Expansion Ports
Learn about the Expansion Options available to use with our controllers
Features
- 9600 Baud Operation
- Relay Status LEDs
- Quick Connect Terminal Blocks
- TTL RS-232 Inputs
- +12 Volt Operation, 2-Wire RS-232
- Overkill Transistor Drivers
- No-Click Power-up
- 2-Way Communication Capable
This Product:
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Since October, 1995
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 R25DPDT RS232 relay shown above using the optional QS12-F6 Quick Start Kit. Simply Connect the Serial Interface to your Relay Controller, connect the Power and Serial Cable and start sending commands. |
Quick Start Kits
Also available is our QS12 Quick Start Kit. Kit includes a high quality regulated switcher supply, serial cables, and an RSIO adapter board used to add a standard serial and power connector to this relay controller. This Quick Start Kit can be purchased during checkout of this controller.
RS-232 2-Channel 1-Amp DPDT Small Signal Relay Controller Board | |
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Quantity in Basket:
None
Code: R21DPDT Price: $59.00 Shipping Weight: 0.50 pounds | |
| RS-232 2-Channel 1-Amp DPDT Small Signal Relay Controller Board | |
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