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Fusion 2-Channel Solid State SPST Relay Controller with 16 Programmable I/O A/D I2C Key Fob

Product Code: FSSR2x
Fusion 2-Channel Solid State SPST Relay Controller with 16 Programmable I/O A/D I2C Key Fob

Fusion Relay

Fusion at a Glance

  • Sensor & Time Automated Relays
  • Computer Controlled Relays
  • Manual Override of Automation
  • Push Notification of Sensor Data
  • 2 Communication Ports
  • 2 solid state Relays
  • 16 10-Bit A/D Converters
  • 2 UXP I/O Expansion Ports
  • FXR Relay Expansion Port
  • I²C Expansion Port

Four Powerful Relay Control Technologies Fused into One

  ProXR Computer Control

ProXR Relay control capabilities offer the ultimate computer controlled relay solution. The 4th Generation ProXR Advanced command set is designed to give you computer control of relays, overriding the sensor and time control features configured into the controller.

  Taralist Time Schedule Control

Need relays to activate on a regular schedule? Taralist allows you to build a Time Activated Relay Schedule with up to 999 events.  With Daylight Savings Time, Holidays, and Leap Year support, Taralist is capable of managing about any application that requires relay control on a regular time schedule. Link Taralist and Reactor for applications that require sensor controlled relays on a time schedule. (see recommended accessories below for important information)

  Reactor Sensor Control

When your application demands sensor controlled relays, Reactor will let you point and click your way into a simple configuration that triggers relays, timers, and counters based on sensor values. Let Reactor manage your relay control needs based on temperature, light levels, humidity, motion detection, and much more. Compatible with most sensors, Reactor is a powerhouse relay control solution for managing your most demanding automation tasks without programming.

  Remote Access Wireless

Fusion is the King of Wireless. Combine several Fusion controllers together within wireless range and Fusion series controllers act as a single, gigantic relay controller, capable of sharing sensor data among the group of wireless Fusion controllers. Develop your software to talk to one controller and Fusion will automatically manage wireless communications to all remote devices. Your software will seamlessly communicate with wireless devices as though they were a single relay controller. Wireless communications couldn't be easier!

4th Generation Technology


The Fusion series is our 4th Generation relay controller offering the ultimate relay control solution... without exception. Capable of making decisions to control relays based on sensor reading. Fusion series controllers offer easy setup without programming. Fusion controllers can be adapted to any automation application you could imagine. Combining ProXR Computer Control, Reactor Sensor Control, Taralist Time Scheduling, and Remote Access wireless communications, it's the best of our technologies merged into a single controller.

Fusion: Built to Communicate

Dual communication port interface means you have choices. Pick any two of your favorite communication technologies: Bluetooth, USB, WiFi, Ethernet, Ethernet Web-i Web Page, 802.15.4 Wireless, ZigBee Mesh, or RS-232. Fusion Easily adapts to the communication technologies you need most. Need access to your controller over two different networks? No problem, just use two Ethernet/WiFi communication technologies. Fusion lives and breathes the protocols of internet communications.

Internet Access Web Interface Modem Required Phone Access Range
Ethernet X * X Global
WiFi X * X Global
Web-i X X X Global
802.15.4 * * X * 1 Mile
Bluetooth X 300 Ft.
ZigBee X 1 Mile
XSC X 15 Mile

*WiNet Gateway is required for these features


Ethernet connectivity is a popular choice for communicating to our products. This option provides basic Ethernet TCP/IP connectivity. This option does not include a web page for device configuration or control. Based on the Lantronix XPort module, this connectivity solution is fast and extremely reliable.


WiFi is a popular communication option that offers connectivity to 802.11 b/g wireless routers. Unlike other suppliers, our WiFi modules are pre-configured to broadcast two UDP packets, one for discovery over a Local Area Network and one for global discovery over the internet. This allows worldwide access of WiFi devices provided Port Forwarding is properly configured on your router. WiFi remains one of our most popular and trouble-free wireless connectivity solutions. Like any other WiFi device, our WiFi modules must be associated with your wireless router. To accomplish this task, the WiFi module must be removed from the controller and installed into a USB Configuration Kit. Base Station software will be used to make the association to your network. For this reason, you must have at least ONE USB Configuration Kit for all of your NCD WiFi devices.


The Ethernet Web-i communication module is custom developed by NCD programmers using the Lantronix XPort Pro communication module. Our custom firmware allows device control through a web page, with a complete web interface suitable for use with tablets, computers, and smart phones. This connectivity option is our most popular choice, as it also supports TCP/IP communications in addition to HTTP Requests. The Web-i communication module includes an FTP server, users may customize the web pages stored within this communications module.


802.15.4 is a 2.4GHz wireless technology capable of communicating up to 1 mile line-of-sight (verified in our own tests). 802.15.4 is extremely fast and reliable, perhaps the best wireless technology we have seen for embedded applications. 802.15.4 is a point-to-point wireless technology, one device can talk to any other device without interfering with neighboring device communications. Fusion controllers have special firmware specifically for 802.15.4 wireless, which allows Fusion controllers to be linked together, sharing sensor data with each other. One Fusion controller can be designated as the Master, capable of controlling all remote slaves devices. 802.15.4 wireless modules should be installed in Port 2 of a Fusion controller. Port 2 is designated the "Remote Access" port, which allows Fusion devices to link together.


Bluetooth communications is a popular choice when your application requires device connectivity to mobile computers, such as smart phones, tablets, and laptops. Bluetooth mounts as a Virtual COM port or a paired device on your phone, PC or Tablet. iPhones and iPads are not compatible with our Bluetooth connectivity options, as Apple requires a dedicated hardware encrypted Bluetooth protocol that must be licensed through Apple.


ZigBee Mesh is a wireless mesh networking technology whereby data travels from device to device to reach the destination device, greatly extending the wireless range. ZigBee Mesh stands out as the most intelligent wireless networking technology available, as mesh networks are self-healing if an intermediate device drops off the wireless network. ZigBee Mesh communications is not suitable for high-speed applications. ZigBee Mesh is recommended ONLY for customers who have experience with ZigBee Mesh products. Because of the complexity of ZigBee Mesh Devices, NCD products should never be used as a learning platform as NCD support is extremely limited. A USB Modem is required to talk to the network of ZigBee Mesh Devices. The USB Modem acts as the coordinator for the entire network.


XSC Long Range Wireless is a 900MHz communication technology that allows extremely long distance wireless connectivity in line-of-sight applications. With a communication range up to 15 miles (using outdoor antennas), XSC is one of the most powerful radio transceivers available. Obstructions such as trees, buildings, and hills will greatly reduce the communication range of all wireless technologies, but XSC stands out as the most powerful communication technology available. A USB Modem equipped with XSC Long Range Wireless communications is required to talk to XSC devices.


USB should be considered an essential communication technology, as all of our development starts with USB communications. At least one USB communication module is recommended for device testing, configuration, or device recovery should you lose communications. This USB module will mount as a COM port on your PC, allowing you to run our Base Station software for easy device configuration. Using mature FTDI drivers (www.ftdichip.com), our USB connectivity option reigns supreme as an essential tool for communicating to NCD devices. Plan on keeping at least one of these modules on your bench for testing or troubleshooting.


RS-232 Serial communications is one of the oldest and most established communication technologies in existence. The growth of RS-232 devices has migrated away from desktop computers, and into the embedded market, where it continues to thrive as the most popular communication technology for device to device communications. Three connectivity options are available for various types of integration applications.

Fusion: Built to Expand

With 2 UXP expansion ports, Fusion controllers know how to expand. Easily add Analog to Digital Converters, Contact Closure detectors and digital potentiometers to your Fusion controller. Fusion controllers also support I2C devices, adding a wide variety of sensors to meet your application objectives. The FXR Expansion Port allows you to add expansion relay boards to your Fusion controller.

Fusion Series Controllers have 16 programmable I/O lines, which may be used for contact closure input, digital input, digital output, 8/10-Bit Analog to Digital Conversion, or I2C expansion. In most cases, these features may be mixed and matched as your application requires.

Fusion Series Relay Controllers know how to connect to your application. With a simple point and click configuration, you can read a variety of sensors in just a few minutes. Fusion will automatically monitor your sensor in the background and make relay control decisions if a sensor is tripped or goes outside an acceptable range.

  • Contact Closure Input Capabilities
  • Fusion Digital I/O
  • I2C Expandability
  • Two UXP Ports
  • Distance Measurement
  • FXR Expansion Port

Contact Closure Input Capabilities

Configure your Fusion Relay controller to read up to 16 contact closure inputs, making light work of complex relay control tasks.  Connect magnet detection sensors, break-beam detectors, contact-closure output current sensors, or any kind of switch you can imagine.  Fusion Series Relay Controllers will monitor your sensor and trigger relays or send a notification to your server if any sensor is triggered.

Fusion Digital I/O

With 16 programmable I/O lines available, Fusion Relay Controllers can easily interface to a variety of logic circuits, ideal for the expert developer who needs low-level bit control.  Program any I/O line as an input or output.  Read and Write individual data bits or read and write data one 8-bit port at a time.

Fusion Analog to Digital Conversion

Fusion Series controllers include 16-Channels of Analog to Digital conversion, capable of reading many popular sensors with an output voltage of 0 to 5VDC.  Interface to photocells for light sensing applications, thermistors for temperature sensing applications, or interface to potentiometers, current sensors, or any other device capable of providing a 0 to 5VDC output.

I2C Expandability

Fusion Series Controllers include a I2C port for access to devices such as gyroscopes, high-resolution analog to digital converters, digital to analog converters, port expanders, potentiometers, light, temperature, humidity sensors, and much more. A second "hidden" I2C bus in the Fusion Expansion Relay (FXR) Port allows us to develop a wide variety of I2C and Relay Expansion devices combined on a single expansion.

Two UXP Ports

Fusion Series controllers include TWO UXP Ports allowing interface to a variety of NCD expansion devices. Expand contact closure input detection up to 2,048 Channels per UXP Port. Add 16, 32, or 48-Channels of 12-Bit Analog-to-Digital Conversion per UXP port, expanding your Analog input capabilities up to 96-Channels per Fusion controller! Each UXP port is also capable of controlling 256 Potentiometer output channels. Connect a simple Breakout board to the UXP port to access the 8 programmable digital I/O or 8/10-Bit Analog input channels.

Distance Measurement

Fusion Series controllers easily interface to Ultrasonic Transducers capable of accurately measuring distance up to 6 feet with .250" (6.35mm) resolution.  Use Ultrasonic sensors to control relays if an obstruction is detected.  Up to 8 ultrasonic transducers are supported by the Fusion series CPU.

FXR Expansion Port

Fusion Series controllers are equipped with our Second Generation FXR Relay Expansion Port.  The FXR Port carries the same relay control data as the XR Expansion port found in earlier controllers.  In addition to relay control data, an integrated I2C port allows us to design expansions that include input/output capabilities in addition to relay control functions.

Fusion: Built to Automate

Fusion Series Relay Controllers were built to make relay control decisions automatically. From time scheduling to sensor monitoring, Fusion offers an arsenal of features designed to quickly and intuitively automate relays control functions without programming. We chose Fusion as the series name because it is a true blending of technologies we have been developing since 1995. Fusion is the most powerful series controllers we have ever created, with a clear overlap of technologies working together to create the ultimate relay control solution.

  • Base Station Software
  • Time Scheduling
  • Reactor Processor
  • Sensor Monitoring
  • Input Limits and Triggers
  • Trigger Events
  • Timers
  • Counters
  • Flashers
  • Override Controller

Base Station Software

Fusion Controllers are configured using Base Station Software. Using a point-and-click interface for configuration means you can accomplish complex automation tasks in minutes. There are no programming languages to learn and no heavy documents to read. Base Station intuitively guides you through the process of monitoring sensors, setting limits, triggering counters, timers, and relay control events. Base Station will communicate to any Fusion controller using any interface, providing you access to your most important automation applications. Base Station is an essential starting point for Fusion controllers.

Time Scheduling

Fusion controllers include our 3rd generation Taralist time scheduling firmware. With support for Daylight Savings time and Leap-Year Compensation, Fusion controllers offer the world's most powerful relay time scheduling system. Holiday mode may also be scheduled, temporarily halting event processing. Taralist works with Reactor to decide if a relay should be triggered based on a time schedule and a sensor reading.

Reactor Processor

Fusion controllers include our 2nd generation Reactor automatic relay control firmware. Built to read sensors, both local and wireless remote, Reactor analyzes sensor readings, makes decisions, and control relays... no programming required. Define sensor limits, increase and decrease relay pattern counters, trigger timers, send push notifications, and much more. Reactor is the most powerful automatic relay control solution available.

Sensor Monitoring

Fusion controllers read up to 16 sensors in the background, waiting for a sensor to violate user-defined limits. Monitor contact closure and analog inputs from on-board I/O or from any supported UXP Expansion device. Fusion controllers can acquire sensor data from other Fusion controllers when linked together through Wireless Remote Access...with up to 1-Mile wireless distance between Fusion controllers. You control the speed of sensor monitoring to best fit your application. Sensors are monitored with up to 16-bit resolution when possible.

Input Limits and Triggers

Fusion knows the difference between Analog and Digital sensors, with dedicated Input Limits and Trigger control panels for each type of sensor. Analog sensors are monitored with up to 16-Bit resolution while digital sensors are monitored at 8-Bit resolution. Fusion controllers allow you to define up to seven analog sensor limits per sensor (with the TLEE Expansion Module installed). When a sensor value crosses a preset limit, Fusion will automatically trigger relay control events, timers, counters, relay flashers, and/or send a push notification to the user.

Trigger Events

Fusion Controllers use a standardized event list throughout the configuration process. When a sensor violates preset limits, an event is triggered. Events include relay control functions such as activating or deactivating a relay. Relay flashers are also supported (used to flash a relay on and off automatically). Events also include timers, used for duration timing applications (such as activating a relay for 5 minutes). Counters are used to directly control relay patterns (allowing relays to be controlled in sequence). Other events include Push Notification support, allowing the controller to notify a user or a server of important sensor activity.


Fusion Controllers include 16 timers that may be present for up to 255 hours, 255 minutes, and 255 seconds. Timers are mostly used for controlling relays for a preset period of time. For instance Timer 1 can be configured to control Relay 1 for 10 minutes. Anytime Timer 1 is triggered, Relay 1 will activate for 10 minutes. However, Timers have the ability to trigger any function in the Event list, so timers are not limited to just relay control applications.


Fusion controllers support 16 different counters. A counter allows a Fusion controller to control a group of up to 8 relays. As the counter is increased, more relays in the group turn on. As the counter is decreased, more relays in the group are turned off. Relays may be turned on and off in sequence, or may be activated in a number of useful patterns. Counters may be increased or decreased based on sensor input, allowing powerful relay control sequences for lighting control applications.


Fusion controllers support 16 flashers. When a Flasher is activated, a relay turns on and off automatically. Flashers are ideally suited for security and alert signaling applications. Combined with sensor control functions, flashers can activate or deactivate as sensors are triggered.

Override Controller

In the real world, there will be times when you need to manually take control. Every automation solution must include powerful provisions for manual control applications. Fusion offers a comprehensive override controller for those times when you need complete control from anywhere in the world.

World Wide Access

Fusion controllers were designed for internet access, making Fusion the perfect choice for internet control and web-page based control applications.  Pursuant to our goals of worldwide access, Fusion controllers were designed to work with WiFi, Ethernet, Web-Page Based Ethernet, and 802.15.4 Wireless.  Each of these technologies adds unique benefits for worldwide access of Fusion controllers.

  • SignalSwitch.com
  • WiNet Gateway and Fusion
  • Standard Ethernet
  • WiFi
  • Web-i
  • Wireless 802.15.4
  • Push Notification

SignalSwitch.com Support

Using our link.signalswitch.com service (free), simply specify the MAC address of your network device and you will be connected to your Fusion controller from anywhere in the world. Web-page enabled Fusion controllers will immediately establish a web page connection to the controller. Ethernet and WiFi devices will return connection information, to help your software locate and control your network enabled Fusion controller.

WiNet Gateway and Fusion

The WiNet Gateway talks to all Ethernet, WiFi, and 802.15.4 wireless controllers on your network, giving you web page access to the entire group of Fusion controllers from a single web site, built into the WiNet Gateway.  Our goal: One Web Page for All Devices.  Using the WiNet Gateway, you have HTTP, TCP/IP, and web page access to all devices in a single location.  Fusion controllers equipped with 802.15.4 wireless communications may be installed up to one mile away from the WiNet Gateway, providing low-cost, long-range wireless web page control from anywhere in the world.

Standard Ethernet

Access your Fusion controller from anywhere in the world using a standard Ethernet interface. Our Ethernet interface module broadcasts discovery data over the LAN and over the internet to our SignalSwitch.com server, ensuring your device is easily discovered. Once located, open a TCP/IP socket to the device to gain full access to the controller. (Internet control requires you to configure Port Forwarding on your router)


Access your Fusion controller from anywhere in the world using our WiFi interface. Our WiFi interface module broadcasts discovery data over the LAN and over the internet to our SignalSwitch.com server, ensuring your device is easily discovered. Once located, open a TCP/IP socket to the device to gain full access to the controller. (Internet control requires you to configure Port Forwarding on your router)


Web-i provides a complete web page interface compatible with mobile phones, tablets, and computers. The Web-i device is specially designed to allow web interface access over the internet using link.signalswitch.com. Simply enter link.signalswitch.com/macAddress into your browser and the web interface of the Web-i module will appear. Software developers may send an HTTP request to link.signalswitch.com to discover the device from their application anywhere in the world.

Wireless 802.15.4

IEEE 802.15.4 communications are accessible anywhere in the world using the WiNet Gateway. The WiNet acts as an Ethernet to wireless bridge, giving you web page access to all 802.15.4 controllers within wireless range of the gateway. Each 802.15.4 device is easily accessed using a unique Ethernet port number (assigned by the gateway).

Push Notification

The Fusion series allows you send push notifications to a server, computer, or mobile device when a sensor goes outside preset ranges. Push notifications may include the current status of all sensors and relays connected to your Fusion controller.

Product Code: FSSR2x
Fusion 2-Channel Solid State SPST Relay Controller with 16 Programmable I/O A/D I2C Key Fob

  Recommended Accessories

Many accessories are available for the Fusion series controllers, but there are two accessories that should be considered above all others.

The TLEE Expansion Module adds the following benefits:

  • Adds Real-Time Clock and EEPROM Memory
  • Enables Taralist Time Activated Relay Scheduling Features
  • Expands Reactor Features to Include 60% More Event Triggers
  • Allows Fusion Controllers to Take Control of other Wireless Fusion Controllers
  • Enables Sensor Sharing between Fusion Controllers
  • Enables Push Notifications

At least one USB communications module (Part Number: ZUSB) should be on-hand, just in case you have problems with your Fusion series controller. It may not be possible for technical support to offer guidance without at-least one ZUSB on-hand for trouble-shooting purposes.

Base Station Software is a free download from our web site, and should be considered the starting point for using any NCD device. Nearly every feature of a Fusion controller requires Base Station Software for configuration and/or testing. Base Station is essential to successful use of Fusion series controllers. Base Station will talk to any Fusion controller using any communication technology, either in a localized installation or over the internet.


Fusion 2-Channel Solid State SPST Relay Controller with 16 Programmable I/O A/D I2C Key Fob

Product Code: FSSR2x
Fusion 2-Channel Solid State SPST Relay Controller with 16 Programmable I/O A/D I2C Key Fob

Quantity in Basket: None
Code: FSSR2x
Price: $156.00
Shipping Weight: 1 pounds
Additional memory enables additional Reactor Features and Remote Access Master Functions

The TLEE Expansion Module adds additional memory and a Real Time Clock used for Time Scheduling applications.  Additional memory enables additional Reactor Features and Remote Access Master Functions
Bundle Pricing Shown, Save $10
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Please Select a Communications Option for Port 1, Bundle Pricing Shown, Save $10
Bundle Pricing Shown, Save $10
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Please Select a Communications Option for Port 2, Bundle Pricing Shown, Save $10
The following options are available for UXP Port 1 at a discount when purchased with your Fusion series controller.

Fusion Series Controllers are Equipped with an FXR Relay Expansion Port, allowing you to control up to 256 relays. If your application requires additional relays, the following expansions are compatible with your Fusion series controller.

Try our New Wireless Remote Control Key Fob Transmitter/Receiver integration kit. Simply remove the communication module from your NCD controller and replace it with the KFX Receiver and use the included 5-Button Key Fob to control relays from 750 Feet Away! Configure Key Fob buttons for momentary, toggle, flashing, or timed relay activation. Save $30 when Purchased with a NCD Relay Controller, just $149!
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Try our New Wireless Remote Control Key Fob Transmitter/Receiver integration kit
WiNet Web Server gives you web page access to many Ethernet, WiFi, and 802.15.4 wireless devices. Plugs into the Ethernet port of your router, access your devices from anywhere using a PC, Tablet, or Mobile Phone What's This?

All customers are STRONGLY ADVISED to purchase at least ONE USB Communication Module. This communication module may be used to recover a controller or to reconfigure a controller should there be an accidental loss of communications. NCD Tech support may be unable to assist customers who do not have a USB Communications Module available for troubleshooting purposes.
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