SolarEdge RS485 Plug-in Installation Manual page 14

13 Installing the RS485 Module
11. Tighten the terminal block screws.
12. Tighten the cable to the communication board using the
cable tie.
13. Check that the wires are fully inserted and cannot be pulled
out easily.
14. Terminate the first and last devices in the chain by
switching a termination DIP-switch to ON:
The inverter that contains the expansion module
should be terminated by switching ON the
DIP switch on the module.
NOTE
Do not cross-connect B, A and G wires.
Figure 7: RS485 cable connected
RS485 Expansion Kit Installation Guide MAN-01-00258-1.0