RS232 Relay 2-Channel 20 Amp SPDT with UXP Expansion PortZUXPR220PROXR_ZRS
RS232 RelayThe ZUXPR220ProXR_ZRS RS232 Relay is equipped with firmware built into the board that will allow you to send commands to the board to energize the relay. The RS232 interface will allow you to connect the board to the DB9 port on your computer. The board will mount to any existing COM port.
ZADR220ProXR_ZRS The Ideal ChoiceThe ZADR220ProXR_ZRS RS232 Relay allows you to program in almost any language and has the ProXR Command Set, the industry leading command set for sending commands to control relays.
Connect to Other DevicesThe ZADR220ProXR_ZRS RS232 Relay Connects to any devices through a DB9 or Direct Wire Connection that has the ability to send numerical commands. Add relay control to Crestron, AMX or any system that has a DB9 interface.
RS232 Relay 2-Channel 20 Amp SPDT with UXP Expansion PortZUXPR220PROXR_ZRS
ZUXPR220PROXR_ZRS at a Glance
- 2 20-Amp Relays Installed
- Single Pole Double Throw (SPDT) Relay
- Normally Open 20-amps, Normally Closed 10-amps
- Temperature Rating -40° C to 85° C
- Expandable up to 256 Relays
- RS232 Interface w/Choice of RS232 connector
- Onboard DB9 Connector:
- Screw Terminal Connector
- Off the Board DB9 Connector
- Connects to Third Party Devices
- Creston, AMX & More!
- Industry Leading Command Set
- Specific Commands Control Relays
- Program in Almost Any Language
- UXP Expansion Port for Adding Additional:
- Contact Closure Modules - up to 256 Inputs
- Digital Potentiometers - up to 48 Inputs
- Analog to Digital Conversion - up to 256 Outputs
RS-232 Interface Modules
NCD RS-232 modules make it easy to integrate the worlds most prolific communication standard. Easily interface to desktop PCs and laptops for easy control via standard serial commands. Most NCD devices typically default to 115.2K Baud.
The RS-232 Interface
Connects to Third Party DevicesRS-232 devices are perhaps versatile and most popular choices because of their ability to adapt to any other communication protocol and devices. For instance, using 3rd party devices, RS-232 relay controllers can be controlled from GSM modems, Ethernet to Serial Adapters, WiFi to Serial Adapters, USB to Serial Adapters, Bluetooth to Serial Adapters, and Wireless Mesh Network to Serial Adapters. RS-232 will continue to adapt to all emerging technologies, as the foundation for all communication technologies has provisions for RS-232 communications. With the DB-9 or direct wire capabilities this controller can connect to third party devices including Crestron almost any way possible.
ZRS ModuleThis board is equipped with a ZRS Module. The ZRS RS-232 Serial Interface module adds a serial port to the NCD line of products. The ZRS Module is offered with 3 different RS-232 connection options depending on the wiring option that best suits your application. The ZRS module is powered from the serial port of your computer. The board itself will require 12 volts of power and can be hard wired or you can purchase a "wall wart" type Power Supply at checkout.
Three ZRS Modules AvailableThere are three RS-232 connection options available for this board.
Wire It Up
Plug It In
Integrates with CrestronThis board can integrate with Crestron, in fact we have many Crestron customers using our devices. The most important thing you need to know is how to format the data out the serial port of the Crestron device. Our devices work with Hex/Decimal byte values. Crestron systems usually work with Hex values, our devices start with a header byte of 254, followed by a command (ProXR controllers need 254, 108, 1 to activate the first relay). So you need to convert all of these values to Hex for the Crestron system and send the bytes out the port. For a detailed list of all the commands with descriptions see our ProXR Enhanced Command Set.
Mounts as a COM PortThis ProXR series controller connects to the serial port of your computer and will mount as a COM port on your PC. Once powered up, the controller waits for a command. A command consists of a few bytes of data in numerical format usually between 2 and 6 bytes. Once the command has been received, the controller processes the command, and sends you back ASCII character code 85 to signal the completion of your command.
Induction CapacitorsPerhaps the most overlooked aspect of relay control is proper handling of inductive loads. Inductive loads can best be defined as anything with a magnetic coil, such as a motor, solenoid, or a transformer. Controlling a inductive load using this relay controller requires the use of induction suppression capacitors. The purpose of this capacitor is to absorb the high voltages generated by inductive loads, blocking them from the contacts of the relay. Without this capacitor, the lifespan of the relay will be greatly reduced. Induction can be so severe that it electrically interferes with the microprocessor logic of our controllers, causing relay banks to shut themselves down unexpectedly. In the case of Serial devices, it is not as severe as using a USB port a capacitor is still recommended. Capacitors that we offer are available at checkout, for more information view our Induction Suppression Video.
USB Induction SolutionIf USB is required, an RS-232 communications module will allow RS-232 communications between your PC and controller with no complications. A USB to RS-232 adapter can be used in combination with the RS-232 controller. The RS-232 communications format with a capacitor effectively blocks induction to safe levels for a USB to RS-232 adapter to function without errors.
ProXR Expandable Board
This Board includes the XR Expansion Port for adding additional relays to the board. The XR Expansion Boards can be added to control up to 256 relays on this board!
The ProXR Relay Board
ProXR RelayWe've looked at the interface now let's take a look at the board design and programming. The ProXR series controllers are manufactured by hand for a highly accurate and reliable design. Equipped with the XR Expansion Port additional relays can be easily added. Fully tested before they leave the production facility each ProXR controller is ready to stand up to rigorous demands from heat, cold or vibration. The best test of all is the numerous boards in the field from customers all over the world in all sorts of conditions. Take it from us, these controllers will hold up!
Easy Software DevelopmentMost of our customers write their own program for controlling these devices. Since you can use almost any programming language, you can use one that is most familiar to you so you don't have to learn a new language. These boards support the Serial Port Profile, meaning they will mount to the computer as a virtual com port. This makes it very easy to send commands to the device.
Plug-In for Visual StudioThe 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 full customization to your needs. Over 40 samples included with this free download! Component Library.
Base Station SoftwareBase Station Software was designed to help you learn the ProXR command set. Explore ProXR features using it's Graphical User Interface. Watch data bytes flow to and from the board, so you easily understand the command execution process. There is no faster or easier way to learn how to automate than Base Station, as it was designed to work with the complete array of communication modules. Base Station software supports every feature of this device - no other controller manufacturer even comes close to offering this type of software.
UXP ExpansionUXP is a new standardized data port, specifically for the purpose of speaking to various expansion modules. If the controller you are considering is equipped with a UXP port, you can take advantage of extended commands to speak to our growing line of I/O expansion modules. You will find the UXP port on models with UXP in the part number.
- Summary of UXP Modules
- Compatible with UXP Series Controllers ONLY
- Not a stand-alone controller - MUST be used with a UXP Series Controller
- Add Contact Closure Inputs
- up to 256 Inputs
- Add Analog to Digital Inputs
- up to 48 Inputs
- Add Digital Potentiometer Outputs
- up to 256 Outputs
UXP Expansion ModulesUXP Expansion Boards have no on-board brains. They are entirely reliant on the brains of a "master" device. A master device is an NCD controller with a UXP expansion port and a microprocessor of some kind. Most master UXP devices have on-board relays. If you need to add A/D, Contact Closure Inputs or Digital Potentiometers just plug in the appropriate expansion module. You cannot daisy chain different types of modules to the same controller however. In other words if you plug in a potentiometer you will not be able to plug a contact closure or A/D module also. For controllers that are equipped with a UXP Expansion port (and are suitable master devices for UXP Series Expansion) simply look for UXP in the part number. All UXP Expansion Modules have an input and an output so you can simply daisy chain the boards together until you reach the number of contacts you are looking for.
XR Expansion PortMost UXP controllers (Master Devices) have an XR expansion port and therefore can accommodate XR Expansion Boards. Typically the XR Expansion port is used to add relays to the main controller (Master Device). Like the UXP Expansion boards the XR Expansion Boards have no on-board brains. They are entirely reliant on the brains of a "master" device. When you run out of relays, just plug in an XR expansion board that is equipped with the kind of relays you need. You can add up to 256 relays including the relays that are on the main controller (Master Device). All XR Expansion modules are compatible with each other so if you want to add different types of relays you can. For controllers that are equipped with an XR Expansion port (and are suitable master devices for XR Series Expansion Controllers) simply look for PROXR in the part number.
Using XR and UXP TogetherIf you select a board that is equipped with both XR and UXP port you can use both ports simultaneously. This allows you to add and control more relays through the XR port plus add A/D, Contact Closures or Potentiometers to the same board through the UXP port. This can all be controlled through the same virtual COM port on your computer. These Expansion Boards can be purchase with the controller or purchased at a later time when you have a need to expand. To use both ports together you will need to select a controller that has UXP and PROXR in the part number to have bothports available on the controller (Master Device).
ProXR Enhanced Firmware InstalledThis board has ProXR Firmware installed that responds to the full ProXR Command Set. The ProXR Firmware is the industry leading firmware for controlling relays with more commands and functionality than any other board on the market. The list of commands and parameters this board is capable of is extensive. ProXR Enhanced is the newly released enhance version of the ProXR Firmware with more commands, more functionality and better control than ever before! For a detailed list of all the commands with descriptions see our ProXR Enhanced Command Set.
SPDT Relay InstalledThis device has SPDT relays installed. SPDT Single Pole Double Throw Relays have three connections - Common, Normally Open, and Normally Closed. When the relay is off, the common is connected to the normally closed connection of the relay. When the relay coil is energized, the Common swings over to the Normally Open Connection of the Relay. You can wire the device you are switching to either the Normally Open or the Normally Closed position.
2-Million CyclesProXR series controllers are designed for long life, you should expect to get years of service from your controller and literally 2-million cycles from the relays on board. With a 5-year warranty and a money back guarantee you have nothing to loose! Place your order now, while everything is in front of you.
Essential Power RequirementsApplying Good clean power to the board is essential for the operation of the board. Not only for the switching of the relays but the firmware that processes the commands. Without good steady clean power from a regulated power supply the board simply will not function correctly. All boards on the site require 12 VDC power. The PWR12 US power supply is a 120VAC to 12VDC 1.25A 60Hz regulated power supply and it plugs into the barrel connector on the board. The output connector is a 2.1mm I.D. x 5.5mm O.D. x 9.5mm Female R/A barrel connector. We also carry an international power supply with interchangeable adapters for international customers. Learn More
This Board is RoHS CompliantThis board is led free and RoHS Compliant. If your requirements are for RoHS compliant parts this board is manufactured with RoHS compliant led free parts and solder.
16 User-Programmable TimersThe ProXR Series controllers have 16 user-programmable timers. Each independent timer can be assigned to any relay, and can be programmed to hold the relay in the On state, or to pulse the relay at the end of the timer. The ProXR timing features are ideally suited for Watchdog, Keep Alive, and Server Reboot applications, as well as sprinkler systems, gate openers, and lighting applications. Relay Timing Features support two modes of operation: Duration and Pulse. Duration timing is ideally suited where a device should be activated for a period of time. Pulse timing mode is designed specifically for server reboot applications, whereby, if the timer is not reset periodically by your software, the timer will run out and reboot your computer.
5-Year Warranty/Money Back GuaranteeProXR Lite series controllers are guaranteed against manufacturing and functionality defects for a full 5 years! Not to mention a 30-day money back guarantee! If for any reason you are not happy with a relay purchased from Relay Pros, simply return it within 30 days and we will give you your money back! Controllers that are damaged by our customers will not of course be warranted under any circumstances.
Induction SuppressionPerhaps the most overlooked aspect of relay control is proper handling of inductive loads. Inductive loads can best be defined as anything with a magnetic coil, such as a motor, solenoid, or a transformer. Controlling a inductive load using this relay board requires an induction suppression capacitor for each relay being used. The purpose of this capacitor is to absorb the high voltages generated by inductive loads, blocking them from the contacts of the relay. Without this capacitor, the lifespan of the relay will be greatly reduced. Induction can be so severe that it interferes with the logic of the board, causing relay banks to shut down unexpectedly. For more information view our Induction Suppression Video.
ShippingThe boards sold are brand new units shipped from our office conveniently located in Missouri. These boards are completely tested before they are released for shipping With so many boards on our site it is impossible to stock boards, please allow two to three days production time for your order to ship. If you have any questions please feel free to call our office at 800-960-4287 or e-mail us at firstname.lastname@example.org.
ProXR Control Is Here!A more streamlined manufacturing process brings a more durable, reliable and better relay board to the market. Here's a lists of great features:
- User Friendly Board Design
- "Wall Wart" or direct power capability
- Relay status light bar
- XR Expansion Port - easily add more relays
- Easy screw terminal connections
- DPDT Relays with 2 connections per relay
- ProXR Features
- Works with the full ProXR Enhanced Command Set
- UXP Expansion Port
- Highly reliable relay with industry leading command set
- 16 programmable timers available
Power Supply AvailableThe PWR12 is regulated power supply providing clean power necessary for the performance of these boards. The PWR12 US power supply is a 120VAC to 12VDC 1.25A 60Hz regulated power supply and it plugs into the barrel connector on the board. The output connector is a 2.1mm I.D. x 5.5mm O.D. x 9.5mm R/A barrel connector.
Click Here for More
Enclosure AvailableThe SR153BL Enclosure is an undrilled, non-waterproof enclosure and is available at checkout for this controller.
Spec Sheet and Drawings:
Induction SuppressionControlling an inductive load using our relay controllers requires the use of induction suppression capacitors. The purpose of this capacitor is to absorb the high voltages generated by inductive loads, blocking them from the contacts of the relay. Without this capacitor, the lifespan of the relay will be greatly reduced. Induction can be so severe that it electrically interferes with the microprocessor logic of our controllers, causing relay banks to shut themselves down unexpectedly. Click Here for More
N-Button LiteN-Button Lite is software that allows you to configure buttons to control relays and read the status of those relays without programming. You can also create meters for reading variable input sensors connected to the board in real time!
Relay Timer R2XRelay Timer Software allows you control each relay independently from a time schedule you create! The software can be installed on a server or PC and uses the computers time for an accurate relay control. Enter the board's IP address in the software and access it over the network. Change and override the time schedule from anywhere on the network the software is loaded. Look for Relay Timer R2X during checkout.
Quick Timer R2XQUICKTIMER_R2X Software supports turning on/off each relay automatically during the predetermined duration. First set the duration that you want the sequence to be active. Time periods can then be set where the relay is energized within the set duration. Look for Quick Timer R2X during checkout.
The software on this tab is from NCD or a 3rd Party Software Developer specifically developed for the boards on this site.
Software OptionsNot a programmer and think these boards look great, not to worry we have software to help get you connected and even control the relays with a button on your desktop or by a time schedule!
Base Station SoftwareBase Station Software is our reference tool for designing and testing all currently manufactured NCD Devices. Base Station will assist you in learning how any NCD device functions and will provide valuable diagnostic tools to help determine if your controller is functioning as designed. Base Station software exercises every supported feature of every supported device. Base Station Software was designed to help you learn the ProXR command set. Explore ProXR features using our Graphical User Interface. Watch data bytes flow to and from the board, so you easily understand the command execution process. There is no faster or easier way to learn how to automate than Base Station, it is designed to work with our complete array of communication modules, including Wireless, Ethernet, USB, RS-232, and more. You only need a Windows 8 or 10 Computer to Run Base Station, no other relay control board even comes close to offering this type of software!
Board IdentificationA window will open labeled "Device Identification Data". This window contains important "Read-Only" information about your device. Note the "Documentation Related to this Controller" field. This is a compilation of all articles relevant to your device. Click on an item in the list to view. You will need an Internet connection to access this information.
Board Command SetsBase Station software asks the controller which command sets are supported. The supported command sets are listed when you run the Base Station software application. Some controllers may show more command sets while other controllers may show fewer command sets. The Base Station program will decide which command sets apply to your particular controller. This allows our software to scale with the product line.
Visit our Base Station Page
Point-And-Click SoftwareN-Button is software that allows you to configure buttons to control relays and read the status of those relays without programming using point-and-click action. You can also create meters for reading variable input sensors connected to the board in real time!
USB and Network CompatibleN-Button Lite supports Serial Port/ USB and Network connection between the PC and the relay board. Add any type of included N-Button Lite widgets with N-Button Lite Manager. It's also very easy to modify the widget's properties to get the button and configuration you are looking for using the full command set!
Lite vs. ProN-Button Lite has all the buttons and widgets of the full version but is limited to 16 widgets. Created for users with smaller needs to save money, N-Button Lite is a powerful tool for controlling relays or reading A/D inputs with up to 16 widgets. If you want to add more than 16 widgets, a Pro version is available and supports up to 255 widgets.
Create Desktop MetersDesktop Meters can be created for real time level readings of any variable input sensor. "It's like having a meter right on your desk for constant monitoring". Meters can be created for temperature sensors, moisture sensors, light meters and others. Read the sensor and create relay buttons that will allow at-a-glance determination of the relay status. Best of all the increments on the meter can be fully customized to fit your needs. Choose an Analog to Digital controller (look for AD in the part number) purchase a copy of N-Button or N-Button Lite and you can read the A/D levels right on your desktop! If you have an application where you need to track sensor levels you will have a live real time meter right on your desktop!
Visit our N-Button Page
Time Schedule ControlRelay Timer Software allows you control each relay independently from a time schedule you create! The software can be installed on a server or PC and uses the computers time for an accurate relay control.
Control relay in recurrent time sequenceThanks to protocol of ProXR & ProXR Lite boards it is possible to update 8 relays at one time. If speed is a requirement it only take about 30 ms to update 8 relays. In multiple relay applications Relay Timer calculates all relays’ status together, even though each of them work separately.
Take Manual ControlYou can take manual control of any relay at any time to interrupt the schedule and control a relay. Automatically switch back to Auto Mode and resume the schedule manually or set a fixed time to return to the schedule.
Time Sequence ControlQuicktimer Software supports turning on/off each relay automatically during the predetermined duration. First set the duration that you want the sequence to be active. Time periods can then be set where the relay is energized within the set duration.
Control Relays by Time DurationQuick Timer is a software program specifically developed for the relay boards on our site. The software will allow you to control the duration the relays will be energized. This software is not designed to control relay at a specific time of day but rather a time duration. The time sequence is manually started and can run through a set sequence and stop of be set to loop until manually stopped.
Control Within a Predetermined DurationQuick Timer Software supports controlling each relay automatically during the predetermined duration. A duration can be set first then each relay on the board can then be controlled with their own time sequence within the set time duration.
Visual Studio SamplesThe 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 customizable to your needs. Over 40 fully functional fully working samples are included in this free download.
Visit our Component Library Page to view all the samples available.
Data Sheets & Quick Start GuidesBelow are the Data Sheets Quick Start Guides for this board. These are the guides that will help you communicate and configure this board.
RS-232 Quick Start Guide
Click to Download
ProXR Quick Start Guide
Click to Download
Base Station Quick Start
Click to Download
20-Amp Relay Data Sheet
Click to Download
PWR-12 Data Sheet
Click to Download
Hardware Reference Guide
Click to Download