Chapter 4: Connecting the Firefighter Gateway to the SolarEdge Installation
Firefighter Gateway Installation Guide MAN-01-00113-1.2
2 Choose either RS485-1 or RS485-2 for connection. Connect the 3-pin terminal block to the
designated port on the gateway.
RS485-1 is configured as SolarEdge device by default, therefore RS485-1 is recommended as
the RS485 bus connection point.
3 If the gateway is at the end of the RS485 chain, terminate the gateway by switching a termination
dipswitch to ON. The switches in the SolarEdge gateway are marked SW1 for the RS485-1 port
termination and SW2 for the RS485-2 port termination, as shown below:
Figure 12: RS485 Connectors and Termination Switches
4 Open the inverter/SMI cover as described in their manual.
5 Remove the seal from one of the openings in communication gland #2 of the inverter and insert the
cable through the opening.
6 Pull out the 9-pin RS485/RS232 terminal block connector, as shown below:
Figure 13: The RS485/RS232 Block Terminal In the Inverter/SMI
7 Loosen the screws of pins B, A and G on the left of the RS-485 block terminal:
For inverter: RS485-1 pins (left-most)
For SMI: RS485-1 (recommended, as this is the default configuration), or RS485-2