Serial Controlled Relay 16-Channel 20-Amp ProXR
ZADR1620PROXR_ZRS$550.00

Serial Controlled Relay
The ZADR1620ProXR_ZRS Serial Controlled 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.ZADR1620ProXR_ZRS The Ideal Choice
The ZADR1620ProXR_ZRS Serial Controlled 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 and read the inputs on the board.Connect to Other Devices
The ZADR1620ProXR_ZRS Serial Controlled 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.
Serial Controlled Relay 16-Channel 20-Amp ProXR
ZADR1620PROXR_ZRS$550.00
Serial Controlled Relay at a Glance
- 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
- Onboard DB9 Connector:
- Screw Terminal Connector
- Off the Board DB9 Connector
- Connects to Any Available COM Port
- Creston, AMX & More!
- Send Specific Commands to Trigger Relays
- Trigger Any or All Relays
- Program in Almost any Language
- Read 0 to 5 Volt Sensors
Connects to Third Party Devices

Integrates with Crestron
This relay 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 Port
This ProXR Lite series controller connects to the RS-232 port of your computer and requires a 12VDC Power Supply. This 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.ZRS Modules
This 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 Available
There are three RS-232 connection options available for this controller.
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ZRS-A Wire It Up |
ZRS-B Plug It In |
ZRS-AB Both! |
Choose Your Connector
Choose the connection that fits your needs. The ZRS-A connection is recommended for applications where hard wiring directly to the board is needed. ZRS-B has the full 9-Pin DB-9 connector on the board. The ZRS-AB Has the DB-9 connector but is is located off the board for applications where the board may be place inside an enclosure an the RS-232 connector needs to reach to the side of the enclosure. You can choose one of these connection options at checkout.Induction Capacitors

USB Induction Solution
If 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 (available at checkout) 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!
ProXR Relay
We'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 Development
Most of our customers write their own program for controlling these relays. 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. Not a programmer, check out N-Button! Software that allows you to configure buttons to control relays and read the status of those relays without programming using point-and-click action. Click Here for MoreBase Station Software

ProXR Enhanced Firmware Installed
This 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 Installed


Amperage Rating
The 20-Amp relay is reated for 20-amps on the Normally Open connection and rated for 10-amps on the Normally Closed connection. Please keep this in mind when wiring to the Normally Closed side it is only rated for 10-amps.2-Million Cycles
ProXR 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 Requirements
Applying 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 MoreThis Board is RoHS Compliant

Add Relays as Your Needs Grow
The ProXR series controllers are expandable up to 256 total relays. The controller is fitted with an XR Expansion Port where you can add expansion boards to this relay. Expansion boards can be added until you reach 256 total relays. The Expansion Boards get their logic from the main board and will require 12 VDC power. Expansion boards do not need to be the same relay amperage as the main board or other expansion boards.Read Analog Sensors

16 User-Programmable Timers
The 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 Guarantee
ProXR 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 Suppression

Shipping
The 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 sales@relaypros.com.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
- Single Pole Double Throw Relays Installed
- Wire to Normally Open or Normally Closed Position
- Normally Open Rated 20-Amps
- Normally Closed Rated 10-Amps - Break-A-Way Tabs Lets you Decide the Board's Size
- Wire Directly to the Relay Using 1/4" Quick Disconnect Terminal
- RoHS Compliant
- XR Expansion Port - Easily Add More Relays
- ProXR Features
- Industry Leading ProXR Command Set
- 8-Channel 8/10-Bit Analog to Digital Converter
- Highly Reliable Board
- Assign up to 16 Programmable Timers
ProXR Videos
Power Supply Available

Click Here for More
Induction Suppression

N-Button Lite

Relay Timer R16X

Quick Timer R16X

Software Options
Not 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 Software

Board Identification
A 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 Sets
Base 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
N-Button Software

Point-And-Click Software
N-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 Compatible
N-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. Pro
N-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 Meters
Desktop 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
Relay Timer

Time Schedule Control
Relay 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 sequence
Thanks 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 Control
You 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.Quick Timer

Time Sequence Control
Quicktimer 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 Duration
Quick 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 Duration
Quick 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.Component Library
Visual Studio Samples

Visit our Component Library Page to view all the samples available.