How to connect a GSD to an Enphase Envoy
Installing a GSD (Generation Signalling Device) on an Enphase microinverter system to meet the new Queensland Emergency Backstop requirements is simple 3 step process:
1- Mount the GSD in a suitable location – usually within the Solar Distribution Board. If using an AC Board (supplied by AC Solar Warehouse) there is plenty of room to accommodate the GSD within the enclosure.
2- Connect AC power to the GSD by wiring it directly to the Main Switch Inverter Supply.
3- Connect the control wires to the Envoy DRM terminals #1 and #3 via the RJ45 adapter that is supplied with the GSD. (Note that when making these connections the pre-wired resistor must be removed from these terminals first)
Enphase Energy have released a Tech Brief providing detailed instructions on connecting the GSD to Enphase systems.
You can also reference our recently published article on the Queensland GSD requirements for more details.
For help installing a GSD in conjunction with any of our products, our account management and engineering team are here to help. You can reach them on
07 4028 3979