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RS-232 8-Channel DPDT Small Signal Relay Controller Board

Product Code: NCD R81DPDT

RS-232 8-Channel DPDT Small Signal Relay Controller Board
RS-232 8-Channel DPDT Small Signal Relay Controller Board
RS-232 8-Channel DPDT Small Signal Relay Controller Board
Brand: NCD

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Relay Control with Solder On Connections

This Solder To Board is a Low Cost,
Space Saving Alternative to Terminal Blocks
Quick Start Kit Available for Easy RS232 Connection
Highly Reliable Relay Board For Demanding Applications

RS-232 Serial Relay Controller

This relay controller was developed for users with low-current, low-signal switching applications such as telecommunications, networking, video, line-level audio, and much more.  This relay is a “Solder To” controller, meaning connections to the relays are soldered directly to the board, offering a low-cost, space saving alternative to terminal blocks.  This device uses DPDT relays.  A single DPDT relay is made up of 2 SPDT switches. So each relay acts as two switches that are activated at the same time. This allows two independent signals to be switched at one time.  In effect, there are two independent switches on a single DPDT relay.

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.  Even a no-frills design deserves a high-quality driver stage, and that’s exactly what we put on this Relay controller.  Fast-reacting flyback diodes help shunt dangerous voltages away from the driver circuit.  To control this Relay Controller,  simply connect a data and ground wire between the board and computer or microcontroller. Provide +12 Volts DC to the board, and send ASCII character codes to control the relays.  This Relay Controller is 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.  Connect this board 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 customized 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.

1-Amp DPDT Signal Relay Option

This controller offers an optional 1-Amp small signal relay, allowing control of low-power telecommunications signals up to 12VDC at 1 Amp. Ideal for audio, telecommunications, and very low power switching applications. This relay has a low On resistance. The 1-Amp signal relay is of the DPDT variety, which is the same as two SPDT relays that switch simultaneously, but remain isolated from each other. This relay has 6 total user connections, two of each of the following: Common (C), Normally Open (NO), and Normally Closed (NC). Common is connected to NC when the relay is off. Common disconnects from NC and connects to NO when the relay is activated. All connections are made via screw terminals, capable of accepting up to 16 AWG wire.

3-Amp DPDT Signal Relay Option

This controller offers an optional 3-Amp small signal relay, allowing control of low-power telecommunications signals up to 12VDC at 3 Amps. Ideal for audio, telecommunications, and very low power switching applications. This relay has a low On resistance. The 3-Amp signal relay is of the DPDT variety, which is the same as two SPDT relays that switch simultaneously, but remain isolated from each other. This relay has 6 total user connections, two of each of the following: Common (C), Normally Open (NO), and Normally Closed (NC). Common is connected to NC when the relay is off. Common disconnects from NC and connects to NO when the relay is activated. All connections are made via screw terminals, capable of accepting up to 14 AWG wire.

5-Amp DPDT Signal Relay Option

This controller offers an optional 5-Amp signal relay, allowing control of  signals up to 12VDC at 5 Amps. Ideal for audio, telecommunications, and light-duty power switching applications. This relay has a low On resistance. The 5-Amp signal relay is of the DPDT variety, which is the same as two SPDT relays that switch simultaneously, but remain isolated from each other. This relay has 6 total user connections, two of each of the following: Common (C), Normally Open (NO), and Normally Closed (NC). Common is connected to NC when the relay is off. Common disconnects from NC and connects to NO when the relay is activated. All connections are made via screw terminals, capable of accepting up to 14 AWG wire.

Features

  • 1200/2400/9600/19.2K Baud Operation
  • Power LED, Relay Status LEDs
  • Control Status of All or Individual Relays
  • Read Status of All or Individual Relays
  • Two-Way Communication Capabilities
  • Integrated Timer Functions
  • E3C Compliance
  • Programmable Relay Memory
  • Optoisolated RS-232 Inputs
  • 2 RS-232 Input Levels
  • +12 Volt Operation, 2/3-Wire RS-232
  • Overkill Transistor Drivers
  • No-Click Power-up
  • See Manual for Outline Dimensions
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