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Installation and Safety Manual
Trinasmart
3.3 Verify Gateway Signal
Locate the MMU display to aid in placement of the Gateway. If the Gateway is placed in a location that is not ideal for
stable communication with the Trinasmart Optimizers, two messages will appear on the MMU display.
The first will say “Panel Not Comm.” and will provide a count of how many Optimizers out of the total in the array are not
communicating with the Gateway (e.g. Panel Not Comm. 3/14). The second will say “Panel Signal Low” and will provide a
count of how many Optimizers out of the total that are already communicating with the Gateway that have weak signal
strength, and thus are unable to communicate effectively with the Gateway. By paying close attention to these warning
messages, the installer can locate the most ideal place for the Gateway to be able to communicate effectively with all of
the Optimizers in the array.
Proactively validate the signal strength by lifting the protective cover on the MMU and selecting the “MENU” button.
Select “1. STATUS”, and then “1.1. PANELS”. Finally, select “1.1.1. SIGNAL”. This part of the MMU menu will display all of the
configured panels in a list with signal strength marked next to each panel. Use the up and down arrows to scroll through
the list. Pressing “ENTER” will allow you to take a new reading of the PV array’s signal strength.
NOTE:
For troubleshooting purposes, the weakest panels are sorted to appear first in the list.
YOU MUST SUCCESSFULLY COMPLETE THIS STEP BEFORE MOVING ON TO THE REST OF THE INSTALLATION
PROCESS.
