Setup Instructions for the digital lightLINK
Note: The digital lightLINK must be connected to a LINKS Hub in order to power on and function. 
digital lightLINK Technical Specifications
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Input Power: |
1A @ 24VDC |
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Typical Power Use: |
3W |
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Device Port: |
RS-485, 2-Wire Screw Terminals & RJ-12 |
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Controller Port: |
RJ-45 to LINK HUB |
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Data Indicator: |
Red LED |
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Protocols Supported: |
Thinkgrow, Dutch Light Innovations (DLI), |
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Hydrofarm/Phantom, Synce, Fohse, |
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Revolution Lighting |
Features
- Full Spectrum Control: Adjust intensity and spectrum on compatible fixtures, creating ideal lighting conditions for each growth phase.
- Automated Lighting Transitions: Features like sun-rise and sun-set ramping, high-temperature dimming, and adaptive light intensity allow automated environmental adjustments.
- Flexible Connectivity: Compatible with ThinkGrow, Dutch Lighting Innovations (DLI), Phantom PX Digital, Synce, Fohse, and more, via RJ-12 and terminal block connections.
- Integrated with Growlink Platform: Centralized control through the Growlink interface for streamlined operations and efficient resource management.
What’s Included
x1 digital lightLINK
x1 Mounting Kit
x1 10 ft. RJ-45 Cable
x1 Mini Screwdriver
digital lightLINK Package Dimensions
Size: 7.5” / 191mm (L) x
7.5” / 191mm (W) x
3.75” / 92mm (H)
Installation & Wiring Instructions
The digital lightLINK modules connect the Growlink LINKS HUB to lighting fixtures from various manufacturers that are controlled with digital communication protocols. One module is required per lighting zone and is situated between the controller and the light fixtures as a communication bridge. The digital lightLINK enables full intensity and spectrum control on compatible fixtures from the LINKS system. 
HUB Connection Port: RJ-45 connector port for power & data.
Terminals: Terminal blocks for connecting RS485 capable devices.
RJ-12 Connection: RJ-12 connector for dimming lights via the connected RJ-12 cable.
Mobile App Setup Guide
- Plug in your Growlink device to power it on. The LED should be blinking blue. If not, hold the SETUP button until status light flashes blue rapidly (12-15 seconds).
- Download the Growlink app from the Apple App Store, or Google Play Store.
- Go to Growlink.com/signup and create a Growlink Account:
- After creating your account, a verification email will be sent from ‘no-reply@growlink.com’ to the email address set for your newly created account. One must verify your email address in order to utilize your newly created account.
- Open the Growlink Mobile App and login to your newly created and verified account:
- Once logged in, tap on the settings icon in the top right corner and then tap Add New Hardware.
NOTE: The first time using the Growlink app you will be prompted to allow Bluetooth access. This is required to set up newer Growlink controllers.
Since the digital lightLINK requires a LINKS Hub to function, one will add the digital lightLINK to an existing LINKS Hub using the ‘Add New Device’ option in the add hardware page.
Add New Devices to an Existing Links Hub
- To add new devices to an existing Links Hub, go to the ‘Add New Hardware’ option within the Settings menu, and select the ‘Add New Device’ option in that page:
- The Links Hub will now iterate through the list of currently connected devices one module at a time and populate what devices have yet to be registered to the Links Hub. It is important to connect Links modules to the Hub one at a time.
Sensor Modules like the Canopy Link will display their sensor readings, and their associated sensor names can be renamed if desired:
Device output modules like the Relay Link will have a Device name and device type field per output, which allows the user to rename the output and device type to match the device being controlled by the output:
Lighting Control modules like the Digital Light Link will have a ‘Manufacturer’ drop-down list, where the user can specify the make of lights connected to the module:
- To skip a specific module from being registered to your Links Hub, tap the ‘Skip’ button at the bottom of the wizard:
- Once the sensor or devices have been named to your liking and any required fields for the module have been designated, one can tap the ‘Add & Next’ button to move onto the next module detected by the Links Hub:
- Once all currently detected modules are registered or skipped, a final confirmation window will populate:
- If you wish to add an additional Links module, connect the module to the Links Hub while at this screen. Once detected, one will be able to setup the sensors and devices of the connected Links Module.
If all desired modules have been added to the controller registration click the ‘I’ve Registered All Connected Devices’ button to finish the setup wizard.
Troubleshooting
Controller not showing up on my list of devices to connect:
Check your phone or tablet and ensure Bluetooth is enabled.
Hold down the Setup button located on the controller (see image below) for approximately 12-15 seconds until there is a rapid flashing blue light. Then refresh the device list on your phone or tablet.
Unplug the unit for 10 seconds and then plug the device back in and wait for the LED lights to stop changing colors (typically 15 seconds). Then refresh the device list on your phone or tablet.
Controller didn’t connect to Wi-Fi:
If unsuccessful in the first attempt to connect the controller to the Wi-Fi network, hold down the Setup button located on the controller (see image below) for approximately 12-15 seconds until there is a rapid flashing blue light. Once rapid flashing becomes visible, immediately release the Setup button. This will put the controller into Listening Mode (Blinking Blue). Now, restart the connection process outlined in the Quick Setup Guide section above.
The Wi-Fi network being used has changed:
In the event the controller needs to re-connect to an existing or new Wi-Fi network, put the controller back into Listening Mode (see above) and follow the Controller Connection process outlined in the Quick Setup Guide section above.
Controller LED Status Light Color Codes
During device setup and operation, these are the LED light indicators:
- Solid White: Firmware Startup
- Slow Flashing Green: Wi-Fi connecting
- Fast Flashing Green: Wi-Fi waiting on IP address
- Fast Flashing Cyan: Wi-Fi connected, connecting to cloud
- Fast Breathing Green: Loading configuration and detecting probes
- Slow Breathing Green: Connected to cloud and running
- Slow Flashing Blue: Wi-Fi configuration mode
- Safe Mode: Slow breathing magenta
- Safe Mode Requested: Fast flashing magenta
- Firmware Updating: Slow flashing magenta
- Slow Flashing Blue: Wi-Fi setup mode
