Installation Guide

If using a cable longer than 10 m/33 ft in areas where there is a
risk of induced voltage surges by lightning, it is recommend to
use external surge protection devices. For details refer to:
https://www.solaredge.com/sites/default/files/overvoltage_surge_
protection_na.pdf.
If grounded metal conduit are used for routing the communication wires, a
lightning protection device is not required.
If not using surge protection, connect the grounding wire to the first inverter
in the RS485 chain; make sure the grounding wire is not in contact with other
wires. Connect the grounding wire to the grounding bus-bar in the
Connection Unit.
NOTE
An additional RS485 port (RS485-Plug-in) is available from
SolarEdge, allowing the creation of RS485 Bus Connection;
Refer to
To connect to the monitoring platform:
1. Designate a single inverter as the connection point between the RS485 bus and the
SolarEdge monitoring platform. This inverter will serve as the master inverter.
2. Connect the master to the SolarEdge monitoring platform via the LAN or ZigBee or
cellular communication option.
3. Install an RS485 Plug-in in every EV Charging single phase inverter , refer to the
'Installing the RS485 Expansion Module' chapter in the RS485 Expansion Kit Installation
Guide and to configure the RS485 bus refer to the following sections.

EV Charging Single Phase Inverter Guide MAN-01-00404-1.2
78 Creating an RS485 Bus Connection