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Port
Pin
Definition
RS485A IN, RS485
1
differential signal+
RS485-1
RS485B IN, RS485
3
differential signal–
Protection
5
PE, shielding ground
ground
RS485A, RS485
RS485-2
7
differential signal+
Connecting RS485 Communications Cables (4–8 mm Four-hole Rubber Plug)
Pin
Definition
RS485A OUT, RS485
2
differential signal+
RS485B OUT, RS485
4
differential signal–
6
PE, shielding ground
RS485B, RS485
8
differential signal–
Number of
communications cables
16
Description
Used for cascading
solar inverters or
connecting to devices
such as the
SmartLogger.
–
Used for connecting to
RS485 slave devices.
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