Time Relay 2-Channel 10-Amp with Wi-Fi Interface
TLR210_WIFI
Time Activated Relay
The R210_WIFI Time Activated Relay knows what time and day it is and can control the onboard relays using a time schedule! Using Base Station Software (a free download) users will upload their time schedules to the board! Once uploaded the computer is no longer needed and the board will operate on it's own! Control gates at specific times of the day, activate security lighting, or control bells to indicate shift or classroom changes. Schedules can be save to your computer for easy upload when different schedules are needed!WiFi Connection
This board will communicate to the software over your Wi-Fi network. Because the board is acting on it's own the real time clock can drift over time. The NextGen Module will sync it's time with time.google.com, then it will update the board's Real Time clock keeping the time schedule accurate!
Time Relay 2-Channel 10-Amp with Wi-Fi Interface
TLR210_WIFI- OVERVIEW
- NexGen INTERFACE
- NexGen SETUP
- Taralist Setup
- ProXR Expansion
- Power & More
- Relay Logic
- ACCESSORIES
- Data Sheets
Time Activated Relay at a Glance
- 2 10-Amp Relay Installed
- Single Pole Double Throw (SPDT) Relay
- Wire to Normally Open or Normally Closed Position
- 12 Guage Solid Core Wire Capacity
- Temperature Rating -40° C to 85° C
- Expandable up to 256 Relays - Embedded WiFi over 802.11b/g
- 2.4GHz WiFi Communications IEEE 802.11 b/g/nr
- TCP, HTTP, Bluetooth, USB, UDP, MQTT
- Security: WPA/WPA2/WPA2-Enterprise and WPS
- Supports DHCP or Static IP
- Soft AP Web Interface for Configuration
- FCC Certified Bluetooth with 320′ Range - Time Activated Relay w/Integrated Real Time Clock
- Control Relays on Your Time Schedule
- Board Operates Without a Computer
- Supports Daylight Savings Time
- Battery Backup in Case of Power Loss
Wi-Fi, Bluetooth, USB or Web Page Control
Control this board using standard WiFi TCP/IP communications or use the integrated Bluetooth for simple wireless computer to device interface using a wireless virtual COM port. Easy setup using a integrated Web Page User Interface for all Configuration settings.
WiFi Relay
WiFi Relay Control
The NexGen WiFi is NCD's second generation WiFi communications module that modernizes connectivity by combining WiFi, Bluetooth, USB, and MQTT Communications into a single module. The NexGen WiFi module includes firmware that focuses on the most needed features while retaining the flexibility to adapt to just about any application. Using the integrated web page in Soft AP mode, users have the ability to configure the NexGen WiFi module by enabling and disabling features as needed.Three Interface Options, ONE Module!
WiFi Communications
The NexGen WiFi module supports TCP communications, essentially converting TCP data to serial data for device control. Configure network setting such as DHCP or a Static IP address. Configure the network Port number and serial baud rates for connectivity to the NCD device using the integrated web page while in Soft AP mode. The Soft AP mode is compatible with web browsers on mobile devices such as Android or IOs devices, as well as laptops and desktop computers with integrated WiFi communications. Once configuration data is complete, exit the Soft AP mode and use the optional integrated web page to control basic relay control functions via the integrated web page (non-secure) or send data to the WiFi module using some of the optional protocols supported below.Bluetooth Communications
The NexGen WiFi module also supports Bluetooth connectivity via the Bluetooth Classic protocol. By implementing the Bluetooth Serial Port Profile, NCD products will appear to your computer as a standard COM port, making it easy to communicate wireless data via Bluetooth between the PC and the device. Users have the ability to set the Bluetooth discovery name and PIN number via the integrated Web Page using Soft AP mode.USB Communications
We also built the NexGen WiFi module to include a USB port, which may be used for direct USB communications to the device. Simply configure the USB Virtual COM Port parameters using the Soft AP mode and the integrated web page. The NexGen WiFi module will mount as a COM port on your computer, allowing access to the device through serial communications.WiFi Communication Protocols
MQTT
The NexGen module supports very basic MQTT usage. It can be configured to connect to an MQTT broker using no auth or basic auth (username/password). Testing of this functionality was done using beebotte.com. The NexGen WiFi module implements one subscribe topic and one publish topic. It listens for control commands over the subscribe topic and sends command responses to the publish topic, which may be user defined using the integrated web page in Soft AP mode.HTTP
Using WiFi communications, it's also possible to send commands to NCD devices using the HTTP API. For example, to activate a relay on a NCD device, Simply send the HTTP command to the IP address 192.168.1.10 in any web browser using the following command structure: 192.168.1.10/sendCommand?data:[254,108,1]Web Socket
Use a Web Socket to send commands to a NCD device. Users can establish a web socket to the board via ws://{controller IP}/ws. This web socket expects command bytes to be sent in the form of a JSON array, for example [254,108,1] (activate the first relay on a NCD relay board). Note this array should be sent in TEXT/String format as shown with quotes. Any data received from the host board will be sent to the web socket in the same format (JSON Array).Discovery and Diagnostics
UDP Broadcast
The NexGen module broadcasts a UDP packet on ports 55555 and 13000 for network discovery purposes. This allows discovery of the the NexGen WiFi module in Base Station and may be used for network discovery in your own software applications.RGB Status LED
The integrated RGB LED displays communications and status information. Diagnose connectivity status or communication problems with different flashing color patterns to indicate module bootup, wifi connectivity, and configuration modes.Taralist NTP Time Sync
This option enables Network Time Protocol time syncing of the Taralist Real Time clock. When enabled, once per day the NexGen module will sync its time with time.google.com, then it will update the on board Taralist Real Time clock. Note that this feature is only valid on Taralist series relay controllers and will only work if WiFi is enabled and internet connectivity is present on the connected WiFi Network.Compatibility
For use with 2.4GHz WiFi Networks ONLY. This module does NOT support 5GHz WiFi.PLEASE CONSULT WITH NCD STAFF PRIOR TO RETROFITTING OLDER DEVICES WITH THIS MODULE!
ONLY NEWLY PURCHASED CONTROLLERS ARE COMPATIBLE WITH THIS MODULE!
In general, this WiFi module works with Fusion series controllers regardless of version. However, this module is NOT COMPATIBLE with older relay boards that you may want to retrofit with WiFi communications. This module requires more power than older devices are capable of supplying. This device is fully compatible with any G2 board revision, such as boards marked with Rev G2A, G2B, G2C, etc. G2 boards are typically black in color with the exception of Taralist controllers, which are also black in color but NOT equipped with G2 revision markings (and not compatible). If G2 is not marked on the board revision and you are not using a Fusion series controller, this module is NOT compatible. Newly purchased controllers will include a power supply upgrade, allowing compatibility. A service charge to upgrade the power supply on older devices may apply when retrofitting this module.
WiFi Bluetooth USB 3 in 1 Module with MQTT Support
Control NCD devices using standard WiFi TCP/IP communications or use the integrated Bluetooth for simple wireless computer to device interface using a wireless virtual COM port. Use the USB port for control over a virtual COM port for easy connectivity. Integrated web server allows control of select NCD relay controllers using a built-in non-secure web page. This is a low-cost solution that lets you try different solutions with easy setup using a integrated Web Page User Interface for all Configuration settings. Connect to a MQTT Server over WiFi for remote operation over the internet.Configure The Features Needed
Using the integrated web page in Soft AP mode, users have the ability to configure the NexGen WiFi module by enabling and disabling features as needed.
NexGen Module Setup
The NexGen module implements all the same functionality from our previously supplied WiFi, Bluetooth and USB modules but adds additional functionality including a simple web interface for configuration, Bluetooth interface, USB interface, we built in web interface for rudimentary control of select relay products, and MQTT compatibility. We will now cover the configuration of the module.Configuring the NexGen module
To configure a new NexGen module make sure it is installed in a Host board(Relay controller or other product) and its LED is flashing Blue. A Blue flashing LED indicates it is in configuration mode. In this mode the module will appear as a WiFi Access point and should show up as an available WiFi network on your computer called NCD_WiFi. Connect to the NCD_WiFi network and enter NCDBeast as the password.Your computer may now automatically pop up a browser window where you can configure the module. If not simply open your web browser and enter 172.217.28.1
You should now see the Configuration Web Interface. We will now cover those options.
WiFi
Here we will cover the WiFi options section of configuration. These are configuration options for associating the WiFi module with your WiFi network. Note that the NexGen module will scan for networks on initial power up and these will be displayed. If you have a hidden network(does not broadcast an SSID) please contact support.Enabled

Network
This Setting indicates the SSID of the network the module should associate with on power up.Password
This Setting indicates the password which should be used to associate with the network configured through the Network setting.DHCP Enabled
This setting indicates whether the NexGen module should obtain an IP address from a DHCP managed router or if it should use following static IP address settings. Checked indicates to utilize DHCP(Recommended for most applications).Default Gateway
This setting indicates the default gateway the module should communicate through(IP of router). This setting is only applicable if DHCP is not checked.Subnet Mask:
This setting indicates the subnet mask which should be utilized on the network. This setting is only applicable if DHCP is not checked.DNS Primary
This setting indicates the default DNS server to utilize for internet connection to host URLs. This setting is only applicable if DHCP is not checked. If DHCP is checked the default DNS server of the network router will be used.DNS Secondary
This setting indicates the backup DNS server to utilize for internet connection to host URLs. This setting is only applicable if DHCP is not checked. If DHCP is checked the backup DNS server of the network router will be used.Static IP
This setting indicates the Static IP address the NexGen module should utilize once connected to the host network. This setting is only applicable if DHCP is not checked.Soft AP

Soft AP SSID
The SSID the NexGen Module should broadcast while in configuration mode.Soft AP Password
The authentication password required for associating with the NexGen Modules network.Default HTML Page
Some devices support captive gateways. This setting determines the web interface to display to the user through the captive portal upon initial connection.UDP Broadcast

UDP Broadcast
This setting indicates whether or not the WiFi module should send out a network discovery UDP packet on interval.Link.SignalSwitch Broadcast
This setting indicates whether or not the WiFi module should send a discovery packet to link.signalswitch.com on interval or not.UDP Discovery Name
This setting configures the Name field to be send in UDP broadcast packets. This can be used to differentiate multiple devices on the same network.Serial

Board Baud Rate
Baud rate of the NexGen modules serial interface connected to the Host board. Most NCD boards have a default baud rate of 115200. This setting must match the baud rate of the host board.USB Baud Rate
The baud rate for WiFi modules USB connection. Software connected to the board via USB must match this baud rate.Bluetooth

Bluetooth Enabled
This setting indicates whether or not the NexGen Module should implement bluetooth connectivity.Bluetooth Discovery Name
This is the name which will appear in Bluetooth device scans.Bluetooth Pairing Code
Pairing code required for Bluetooth pairing with the device.TCP

TCP Server Enabled
Whether or not to allow TCP clients to connect.TCP Listen Port
The port on which to listen and allow for TCP Client connections.HTTP Control
The NexGen module supports a rudimentary web interface for manually turning relays on and off. This interface only supports ProXR, ProXR Lite, Fusion, and Taralist relay controllers with 8 or fewer relays. This interface is available at {device IP address}/Control.HTTP Control Enabled

Number of Relays
This setting determines the number of relay control sets to display on the control interface. Match this to the number of relays on the board. This ferature is only compatible with boards with 8 relays or less.MQTT
The NexGen module supports very basic MQTT usage. It can be configured to connect to an MQTT broker using no auth or basic auth(username/password). Testing of this functionality was done using beebotte.comThe module only implements one subscribe topic and one publish topic. It listens for control commands over the subscribe topic and sends command responses to the publish topic. Commands should be published to the subscribe topic in a JSON packet. The JSON packet must contain one key value pair with a key of sendCommand and the value for that pair must be a JSON array of command bytes. Example: {sendCommand:[254,108,1]}. The WiFi module will publish data received from the host board to the Publish topic. This Publish payload will contain a JSON packet. The format of the packet is a single key value pair with the key of data and the value will be an array of bytes. Example: {data:[170,1,85,1]}
MQTT Enabled

HOST
The Host URL for The MQTT broker.Host Port
The port on which to connect to The MQTT broker.Client ID
The Client ID to use for The MQTT connection.Username
The user name to use for basic authentication with The MQTT broker.Password
The password to use for basic authentication with The MQTT broker.Subscribe Topic
The Topic to subscribe to for host board control commandsPublish Topic
The Topic which to publish data to when data is received from the Host board.HTTP API
The NexGen module supports HTTP GET requests for sending commands to the host board. There are a few different end points for the HTTP Get requests:/relayCount
- A Get request to this end point will return the number of relays on the board(this is configured under Number of relays setting under HTTP Control. - Example: 192.168.1.10/relayCount/relayON
- A GET request to this end point will turn the specified relay on. This GET request requires one arg with the key relay and the value of the relay which to control(valid range for relay number is 1-256) - The board should respond to this GET request with an 85. - Example: 192.168.1.10/relayON?relay=1/relayOFF
- A GET request to this end point will turn the specified relay off. This GET request requires one arg with the key relay and the value of the relay which to control(valid range for relay number is 1-256) - The board should respond to this GET request with an 85. - Example: 192.168.1.10/relayOFF?relay=1/sendCommand
- A GET request to this end point allows the user to send any command to the board they wish. This GET request requires one arg with the key of data and a value of an array of bytes which to send to the host board. - Once the host board has processed the command this GET request will respond with the data returned from the host board. - Example: 192.168.1.10/sendCommand?data:[254,108,1]Web Socket
The NexGen module supports web sockets. Users can establish a web socket to the board via ws://{controller IP}/wsThis web socket expects command bytes to be sent in the form of a JSON array, for example [254,108,1]. Note this array should be sent in TEXT/String format as shown with quotes.
Any data received from the host board will be sent to the web socket in the same format (JSON Array).
RGB status LED
The NexGen module has an RGB status LED which is used to indicate the current state of the module to the user visually. Possible statuses are:Flashing Green
The module is running normally but no connections to it have been established.Solid Green
The module is running normally and a connection has been established with the board via software. This will happen when a TCP socket is connected to the board.Flashing Blue
Module is in configuration mode and should appear as a network in WiFi Scans.Flashing Yellow<
Module is booting.Orange Flash
The LED will flash Orange any time data is received over any connection (USB, TCP, Bluetooth, MQTT, etc).Flashing Red
Indicates the module is unable to connect to the WiFi network.Taralist
Taralist NTP Sync Enabled
This option enables Network Time Protocol time syncing of the Taralist Real Time clock. When enabled, once per day the NexGen module will sync its time with time.google.com, then it will update the on board Taralist Real Time clock. Note that this feature is only valid on Taralist series relay controllers and will only work if WiFi is enabled and internet connectivity is present on the connected WiFi Network.
UTC Timezone Offset
This setting determines the timezone for NTP clock syncing. Set it to your particular timezones UTC offset not factoring in DST. For instance Central Standard Times UTC offset is -6, Eastern Standard Time is -5, etc.
Enable Daylight Savings Time
When enabled the controller will offset its clock during Daylight savings time.
Viewing the NexGen Modules NTP time and the on board Taralist Real Time Clock Time.
After Taralist settings have been entered and WiFi settings have been entered and saved to the NexGen module it should connect to your WiFi network and the RGB LED should be flashing green indicating everything is functional. On a computer on the same network as the controller open a web browser and enter the controllers IP address followed by /Taralist for example: 192.168.0.2/Taralist. The returned HTML page will display both the NTP clock time and the on board Taralist real time clock time. This time is updated nearly once per second. If everything looks valid go ahead and close the page, Taralist is now fully functional. Note do not leave this page open as it taxes the processor to update the web page once per second.
Taralist NTP Sync Enabled
This option enables Network Time Protocol time syncing of the Taralist Real Time clock. When enabled, once per day the NexGen module will sync its time with time.google.com, then it will update the on board Taralist Real Time clock. Note that this feature is only valid on Taralist series relay controllers and will only work if WiFi is enabled and internet connectivity is present on the connected WiFi Network.UTC Timezone Offset
This setting determines the timezone for NTP clock syncing. Set it to your particular timezones UTC offset not factoring in DST. For instance Central Standard Times UTC offset is -6, Eastern Standard Time is -5, etc.Enable Daylight Savings Time
When enabled the controller will offset its clock during Daylight savings time.Viewing the NexGen Modules NTP time and the on board Taralist Real Time Clock Time.
After Taralist settings have been entered and WiFi settings have been entered and saved to the NexGen module it should connect to your WiFi network and the RGB LED should be flashing green indicating everything is functional. On a computer on the same network as the controller open a web browser and enter the controllers IP address followed by /Taralist for example: 192.168.0.2/Taralist. The returned HTML page will display both the NTP clock time and the on board Taralist real time clock time. This time is updated nearly once per second. If everything looks valid go ahead and close the page, Taralist is now fully functional. Note do not leave this page open as it taxes the processor to update the web page once per second.Base Station Software
Taralist boards are configured using the Free Base Station Software. The GUI interface makes it easy to configure simple automation tasks with a point and click interface! Configure time schedules and upload to the board and take manual control of relays. Download Base Station
Base Station Taralist Setup
Base Station Software
Base Station software works by communicating with your controller to identify the model and provides the appropriate graphical user interface for setting the time schedule and uploading it to the board. Base Station Software is used to configure and upload the time schedules to the Board and take manual control of the board to override the time schedule.Download Base Station
Integrated Real Time Clock

Time Schedule Events
Events are scheduled times when a relay or group of relays are turned on or off. They are defined by the user first by time: Year, Month, Day of Month, Day of week, Hour, Minute, and Second. You have the ability of switching relays on or off at very specific times! Activate relays only when the day is Monday, activate relays when the day is Monday and the Year is 2020, activate relays when the day is Monday, the year is 2020 at 9:44:21 AM. They are also defined by how they control the relays, whether they turn a relay or group of relays on or off. You can add up to 1000 Events to the list.Program Multiple Schedules

Daylight Savings Time is also supported, and is FULLY CUSTOMIZEABLE. As we all know, DST laws change periodically, but the Taralist series allow you to change the year and date of all DST events (we have programmed the US dates until 2030).
Save You Schedules
Taralist controllers allow you to build and save your time schedule as a file on your computer. Different schedules can be configured for different times of the year, for instance one for Summer School and one for the full school year. Upload the schedule you need for that part of the year. For users with multiple boards saved schedules can also be used to store the time schedule into each controller easily without re configuring.Defining Time

Clock Accuracy - Adjustable Time Compensation
Like most clocks, time drift is a reality and the Taralist controller will drift over time. The Taralist clock has some special features to help keep the time accurate. Time compensation functions are included that allow you to automatically adjust the clock forward or back (by up to 15 seconds) each day of the week. For instance, you may find the Taralist keeps better time if it automatically advances the clock 1 second each day of the week. Or you may find that you need to subtract 5 seconds from the clock 1 day per week. Adjustable time compensation will help keep your clock accurate (though it is always a good idea to check on the clock periodically).
If your application requires your relay control to match a computer's time exactly we recommend using a computer controlled Relay and Relay Timer Software. The software can be installed on a computer or server and match the time exactly. We recommend this for school bells and shift change applications where matching a time clock is vital. Select a Wired or Wireless Relay under Relay Control from the top menu to select a board then add the Relay Timer Software at checkout.
Computer Control

The interface elements shown at right allow a computer to take over control of any relay and force the relays to a On or Off state. You may also turn all relays on or off using the all relays on and all relays off buttons. You can also read the status of relays by clicking the Read Relay 1-8 Status. The Status of the relay will be shown to the right of the button. The slider at the top of the screen allows you to select with bank of relays these commands are directed to. You may attach up to 32 banks or 256 Relays.
Power Loss Backup Buffer
The Midnight Backup Buffer is a special feature developed to help keep track of which relays should be activated in the event power is lost. Every night at midnight, the current status of all relays is stored in non-volatile memory. If power is lost, the Taralist will load the status of the relays from memory. Next, the Taralist will calculate all events from midnight to the current time to determine if any relays need to be activated or deactivated. Finally, the Taralist will refresh all relays and will be ready for normal operation.ProXR Expansion Board
This Expansion Board plugs into the XR Expansion Port on any ProXR or Taralist Board to add more relays. Expansion boards can be daisy chained together to add up to 256 relays as needed.
The XR Expansion Port
Add Relays as Your Needs Grow
ProXR Controllers were built with relay expansion in mind. The XR Expansion Port is used to add banks of external relays to a ProXR or Taralist board equipped with a XR Expansion port. The ProXR and Taralist boards are fitted with an XR Expansion Port where you can add expansion boards. Expansion boards can be added until you reach 256 total relays. As you continue to chain expansion boards onto an XR expansion port, the total number of available relay banks will increase. Add expansion boards as needed in the future, whenever you require more relays simply order another expansion board.Linking XR Expansion Boards Together
XR Expansion Boards consist of a XR Input and XR Output Connector. Simply connect the XR Output of your ProXR Board to the XR Input located on the relay expansion board. Chaining more relays is easy. Simply connect the XR Output of your ProXR expansion board to the XR Input of your next expansion board. Mix and Match different relay types as your application requires. A 6″ expansion cable is included with the expansion board. It's important to keep the cabling as short as possible. Not all users will be able to expand to 256 total relays, as it all depends on the installation, the amount of electrical interference, and the overall cable length. For best compatibility, the total length of the ProXR controller and all of the expansions and cabling should not exceed 1 or 2 meters.Will Not Operate Independently
This Expansion Board gets it's commands from the main ProXR or Taralist board and will not operate independently. This board MUST be plugged into a ProXR or Taralist board to operate and will not function on it's own.SPDT Relay Installed

Mix & Match
Expansion boards do not need to be the same relay amperage as the main board or other expansion boards. Mix &anp; match expansion board to get the exact amperage for your switching needs.Essential Power Requirements

Maximum Relay Rating Notes
ProXR is capable of expanding to an absolute maximum of 256 Relays. In some cases, it may not be possible to control all 256 relays, particularly in applications where high noise levels may be involved. Experimentation may be required, as it is not possible for us to guarantee all users will be able to utilize all 256 relays in every application. Noise tends to accumulate when several expansions are connected together. For best results, the XR expansion cables must be as short as possible.This Board is RoHS Compliant

2-Million Cycles

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.Relay Expansion Videos
Building a Power Budget
The operating range of the board is between 9 & 14 VDC, any power outside this range and the board can become unreliable. Use the tables below to build a power budget for the board you have based on the module you have and the anticipated time the relay will be active.
Power & More
SPDT Relay Controller Specifications
This table covers all NCD SPDT Relay Controllers. All ratings assume 12VDC operation at 70°F (21°C). Please note that most ratings are estimated and may be subject to periodic revision. Some ratings represent stock controller settings without performance enhancement optimizations. The estimated processing time can be impacted by background services and choice of commands. Standby power consumption assume no communications module is installed and no relays are active on the controller. Please add the power consumption of the activated relays and communications module to obtain a better estimation of power consumption.Specs of NCD SPDT Relay Boards | Minimum | Nominal | Maximum | Notes |
Operational Voltages | 10VDC | 12VDC | 15VDC | |
Standby Power Consumption | 35mA | 100mA | 200mA | No Active Relays, No Com Module |
Relay Power Consumption | 28mA | 35mA | 60mA | Consumption of Each Activated Relay |
Operational Temperature Range | -40°F (-40°C) | 70°F (21°C) | 185°F (85°C) | Theoretical Component Limits Shown |
Storage Temperature Range | -67°F (-55°C) | 70°F (21°C) | 185°F (85°C) |
Theoretical Component Limits Shown |
Operational Ambient Air Humidity | 0% | 50% | 70% | Non-Condensing Humidity Values Shown |
Relay Activation Time | 4ms | 5ms | 10ms | Needs Further Validation |
Relay Deactivation Time | 5mS | 10mS | 15mS | Needs Further Validation |
SPDT Relay Installed

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.Communication Module Specifications
This table covers all NCD Communication Modules. While NCD communication modules operate at 3.3VDC, the ratings below highlight the effect they will have on the master controller operating at 12VDC at 70°F (21°C). Maximum ratings should be used for power budget planning purposes and may reflect short term absolute maximum peak current consumption. Some ratings are estimated and subject to periodic revision.Specs of NCD Communication Modules | Minimum | Nominal | Maximum | Notes |
Operational Temperature Range | -40°F (-40°C) | 70°F (21°C) | 185°F (85°C) | Theoretical Component Limits Shown |
Storage Temperature Range | -67°F (-55°C) | 70°F (21°C) | 185°F (85°C) | Theoretical Component Limits Shown |
Operational Ambient Air Humidity | 0% | 50% | 70% | Non-Condensing Humidity Values Shown |
USB Module Power Consumption | N/A | N/A | N/A |
USB Modules are Powered by the USB Port Do Not Consume Device Current |
RS-232 Module Power Consumption | 10mA | 20mA |
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Ethernet Module Power Consumption | 58mA | 82mA | 100mA | |
WiFi Bluetooth USB Module Power Consumption | 37mA | 50mA | 100mA | Up to 300 Foot Indoor Wireless Range, Unobstructed. Up to 50 Foot Range Through Walls |
900MHz Wireless Module Power Consumption | 13mA | 30mA | 50mA | Up to 1,000 Foot Indoor Wireless Range, up to 2 Mile Outdoor Wireless Range using Included Antennas. Up to 28 Miles Outdoor Wireless Range using High-Gain Antennas. |
KFX Wireless Key Fob | 11mA | 15mA | 25mA | Up to 200 Feet Outdoor Wireless Range using 1, 2, 3, 4, or 5 Button Key Fobs. Up to 700 Feet Outdoor Wireless Range using 8-Button Remotes |
AD8 Analog Input Usage Notice
Analog Inputs should not have a voltage present when powered down. Use a 220 Ohm current limiting resistor on each input to prevent damage to the controller if voltage will be present on the analog input when this controller is powered down. Do not exceed 0 to 5VDC on any analog input or the on-board CPU will be damaged. Most analog inputs include a 10K Pull Up/Down resistor to help keep the inputs quiet when not in use. This 10K resistor may slightly bias the readings of some sensors.Power Supply Available

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Enclosure Available

GFL Spec Sheet
CAD Drawing: GFL CAD Drawing
3D Model: GFL_3D
Induction Suppression

What Is Relay Logic?
Relay logic consists of relays wired together in a particular configuration to perform the desired switching operations. Relay Logic is all about wiring up Relays for Logical Switching applications. Get a printout of this page
Relay Logic
Relay Logic Samples
This page demonstrates several simple ways to wire a relay or multiple relays for various applications. We use the example of switching a light but the light can be swapped for a gate control, security system, dry contact output and other devices. These examples show different ways to wire to a relay or multiple relays to produce a desired effect.Get a printout of this page
SPDT Wiring


SPST Wiring
SPST Single Pole Single Throw Relays have two connections - Common and Normally Open. The Common (COM) is the moving part of the relay that comes in contact with the Normally Open (NO) when the coil to the relay is energized. The only SPST relay we sell on this site is the 30-Amp relays, The wiring examples below can be used with the 30-Amp relays as long as the example doesn't use the Normally Closed position.DPDT Wiring


Relay Logic Examples

Example 1 - Simple Off/On
This example demonstrates how a relay can be used to activate a light bulb. When the relay turns on, the light comes on. Only one power wire is switched with this example using the COM (common) and NO (normally open) connections of a relay. This is the simplest of the examples, switching a light in this example or any device on when the relay is energized.
Example 2 - Simple On/Off
This example demonstrates how a relay can be used to turn a light bulb OFF. When the relay is energized the light turns off, when the relay is off the light will be ON. Only one power wire is switched in this sample using the COM (common) and NC (normally closed) connections of a relay. Not commonly used but great for applications where the device is on most of the time so the relay doesn't have to be energized to to keep the device on. Power cycling a device can be a typical use for this wiring, when the relay turns on the device is powered off.Example 3 - 2 Relays to Activate

MirC/MirX Users: Two contact closure inputs in the sender board required to control a device. Use this wiring when you require two outputs to close before you switch the relay.
Example 4 - 3 Relays to Activate

Example 5 - Override Function

MirC/MirX Users: Add a manual button or switch to control the third relay to manually control the light if you have sensors that control the other relays.
Reactor Users: Add a manual button or switch to control the third relay to manually control the light if you have sensors that control the other relays.
Example 6 - Either Relay Activates

MirC/MirX Users: Two contact closure inputs in the sender board and either of the inputs can control one light or device.
Example 7 - 3-Way Switch

Example 8 - Motor Control

- Relay 1 Off Relay 2 Off = Motor Brake to +
- Relay 1 On Relay 2 Off = Motor Forward
- Relay 1 Off Relay 2 On = Motor Backward
- Relay 1 On Relay 2 On = Motor Brake to -
- Induction Capacitor Should Be located by relay
- Filter Capacitor Should be Located Near Motor
- Additional Capacitors May be Desirable for Some Motors
Inductive loads typically require 2-3 times the runtime voltage or amperage when power is first applied to the device. For instance, a motor rate at 5 Amps, 125 VAC will often require 10-15 amps just to get the shaft of the motor in motion. Once in motion, the the motor may consume no more than 5 amps. When driving these types of loads, choose a relay that exceeds the initial requirement of the motor. In this case, a 20-30 Amp relay should be used for best relay life.