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World's Largest Manufacturer of Computer Controlled Switching Devices Since 1995.
National Control Devices, LLC
PO Box 455 • Osceola • MO • 64776
Phone: 417.646.5644  • Fax: 866.562.0406
Open 9AM-4PM Central Standard Time
www.controlanything.com  •  www.iorelay.com
  Learn to Write Your Own Software to Control NCD Devices in Minutes!
USB Relay USB I/O
USB Analog Digital
RS232 Relay RS-232 I/O
Serial Relay RS-232 A/D
Bluetooth Relay Ethernet Relay Wi-Fi  Relay
802.11b Relay
ZigBee Relay
ZigBee Modem
Fiber Optic Relay Wireless Relay
Remote Switch
SPDT Relay
DPDT Relay
Watchdog Timer
Watchdog Server
 
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Induction Suppression
Relay Controller Boards
ProXR Ultra Hybrid
1-Relay Controllers
SPDT RS232 HP
Wireless ZigBee
2-Relay Controllers
SPDT DPDT HP
USB ZigBee RS232
Fiber Optic Bluetooth Solid State
4-Relay Controllers
SPDT DPDT HP
Solid State Wireless XR
USB ZigBee RS232
Fiber Optic Bluetooth
8-Relay Controllers
SPDT DPDT HP
  Wireless XR
USB ZigBee RS232
Fiber Optic Bluetooth Solid State
16-Relay Controllers
SPDT DPDT HP
REED Wireless XR
USB ZigBee RS232
Fiber Optic Bluetooth Solid State
Ethernet Wi-Fi 802.11b
24-Relay Controllers
SPDT DPDT XR
USB ZigBee RS232
Fiber Optic Bluetooth Solid State
32-Relay Controllers
SPDT DPDT HP
REED Wireless  XR
USB ZigBee RS232
Fiber Optic Bluetooth Solid State
Ethernet Wi-Fi 802.11b
XR Relay Expansion Boards
UXP I/O A/D Expansions
Analog to Digital Converters
Digital Potentiometers
Keypad Encoders
Light Dimmers
USB Devices
Microcontrollers
Mirror Modules
Motor Controllers
Power and Interface
Speed Controllers
Video Switches
Repair Kits
Programmers Toolbox
Upcoming Devices
Contact NCD
National Control Devices, LLC
Open M-F 9AM - 4PM CST

Call: (417) 646-5644

FAX: (866) 562-0406
Contact Information
   

 Net-30 Purchase Orders Accepted from Companies with Established Accounts.
SECURE SERVER
Backup Site:
www.relaycontrollers.com

 


Fiber Optic Relay Controllers

Fiber Optic Data Collection and Control

    Fiber Optic Relay
  • Isolated: Fiber Optics offers superior noise immunity
  • Futureproof: The customer has the choice of selecting and changing interface options with minimal down time
    • RS-232
    • Ethernet
    • Wi-Fi 802.11b
    • Bluetooth
    • USB
    • ZigBee
  • Cost Effective: Fiber Optics is Faster, with No Security Protocols
  • Offers the same electrical isolation at a lower cost
    than a typical wireless interface

Fiber Optic Relay Controllers have the Ability to Collect Data and Control High-Power Devices with minimal EMI, which can adversely affect Computers.  Our Fiber Optic Series Controllers Offer Superior Noise Immunity and Protection using a Futureproof Interface that can be Changed or Upgraded at any time.  Our Fiber Optic Series Controllers are Available with All Standard Interfaces, including ZigBee, Bluetooth, RS-232, Wi-Fi 802.11b, Ethernet, and USB.


USB Relay Wireless Relay Ethernet Relay
 
USB Relay Controller Board  WiFi Relay Controller Board Ethernet Relay Controller Board
  • Allows computer controlled switching using the USB port of your computer
  • Works with any programming language that supports serial communications
  • COM drivers allow you to assign any COM port to this device
  • Supports 8-Channels of 8-Bit / 10-Bit Analog to Digital Conversion
  • USB Introduction Article
  • Integrated 8/10-Bit Analog to Digital Conversion
  • 16 or 32 On-Board Relays
  • Supports Telnet & Data Encryption
  • Embedded Web Server & 802.11b WLAN Interface, Antenna and Power Supply
  • WiFi Introduction Article
  • Ethernet Interface mounts as a COM port on your PC Through Your LAN
  • Supports Telnet and Data Encryption with Password Protection
  • Sixteen On-Board Relays
  • Embedded Digi Connect ME Ethernet Interface & Web Server
  • Ethernet Introduction Article
RS232 Relay ZigBee Relay Bluetooth Relay
RS232 Relay  
Serial Relay Controller ZigBee Relay Control Boards Bluetooth Relay Control
  • Offers More Features & Expandability Then Any Other Serial Relay
  • 5-Year Warranty
  • Proven ProXR Command Set
  • Sets the Standard for Which All Other Computer Controlled Switching Devices Should be Judged
  • RS232 Introduction Article
  • Allows Wireless Switching Using any Bluetooth Equipped PDA, Laptop, or Desktop
  • Very Easy to Use and Program
  • Mounts as a Bluetooth Serial Device
  • Simply Open the COM Port and Talk to the Device as Though it were Directly Connected
  • Bluetooth Introduction Article
± ± ± WE'VE DONE THE PROGRAMMING FOR YOU!  ± ± ±
ProMOTE Software SignalSwitch.com
SignalSwitch.com User Page
SignalSwitch.com Allows you to Control any NCD Device Over the Internet! 
Create your OWN Interface to Control NCD Devices with NO PROGRAMMING!!...
Best of All...It's FREE!!!

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"It's fun seeing the site progress as you guys work on it...great job so far!"

Control any
NCD Bluetooth Relay
Control Anything...Anywhere...
  • Bluetooth Wireless Interface allows you to use your cell phone or PDA as a remote control
  • Software also allows wireless communications from your PC
  • Use any cell phone with Windows
    Mobile 6 installed
  • Use any PDA with Windows
    2003SE installed

Click here to visit our ProMOTE page 

  • User-Customized Pages for Controlling Devices from Anywhere in the World from SignalSwitch.com
  • User-Customized PDA (Pocket PC) Pages for Controlling Devices from Anywhere in the World from SignalSwitch.mobi
  • One Account can Service Thousands of Controllers Worldwide
  • Client Application Tools Allow you to Write your Own Software for Internet Control
  • Complete Integration Tools for Computer Control from your Own Web Site
  • Anticipated Beta Release Date October 1st.
  • Free Service to Unlimited Client Locations 

Click here to visit our SignalSwitch.com page

 
  ± ± CLICK HERE TO LEARN MORE ABOUT SIGNALSWITCH.COM    ± ±
 
              
Helpful Resources
Helpful articles, program samples and manuals are all here to help you get the most from your controller.
For more information try our
Search Page where you'll find more links and more topics!
New Low Cost Relay Controllers

Computer Controlled Relay
Has Never Been This Affordable

RS232 & ZigBee Interfaces Available!

  • 1 & 2 Relay Options
  • RS232 & ZigBee Interfaces
  • High Power 20 Amp Relays
  • Signal Switch Compatible
  • Reliable Field Tested Boards
  • No-Click Power-Up

Mounts as a Virtual COM Port for EASY Programming!

Computer Controlled Relay in minutes!
Simply Connect the Serial Cable, Power and Start Sending Commands!
A/D Conversion
Analog to Digital Conversion
DPDT Relay
DPDT Relay Board
SPDT Relay
SPDT Controller
USB Potentiometer
Programmable Potentiometer

ZigBee Relay Controller

  • All interfaces available
  • 2 to 32 channels available
  • 1, 3 & 5 amps available
  • Large Selection
  • Available in all interfaces
  • Available in all controller sizes
  • Fully programmable
  • Add relays as your needs grow
  • Available in 8, 16 & 24 Channels
1 Channel w/Interface
R15RS with Integrated RS232 Interface
1 Channel - Low Cost
R120HP Low Cost Relay Board
1 Channel ZigBee Relay
ZR15 Single Channel ZigBee Relay
1 Channel SPDT Relay
R15 Single SPDT Relay Board
  • NEW DEVICE
  • 5 & 10 amp versions available
  • Quick Connect Terminal Blocks
2 Channel ZigBee Relay
Dual ZigBee Relay
2 Channel - Low Cost
R220HPRS Low Cost Relay
4 Channel Fiber Optic
RFOADR410ProXR Fiber Optic Relay
Upcoming Devices
New Devices We're Working On
Watch for Solid State Controllers to Be
Released This Year