SMA ST6-US - Manual (Page 43)

SMA America, LLC Communication
Installation Guide ST36-48US-IA-IUS112321 43
8.3 External communication device
To connect an external communication device to the communication bus of the Sunny Tower simply
connect the RS485 cable to the RJ45 socket as you can see below.
Pin configuration from RJ45-plug:
PIN 1= Data -
PIN 2= GND
PIN 3= Data +
Position Description
A Socket for additional bus participant or termination resistor
B External communication device
screen
1 8