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Port
Pin
Definition
RS485A IN, RS485
1
differential signal+
RS485-1
RS485B, RS485
3
differential signal–
PE
5
PE, shielding ground
RS485A, RS485
RS485-2
7
differential signal+
Connecting Communications Cables (4–8 mm Four-Hole Rubber Plug)
When using the four-hole rubber plug, block the unused cable hole with a plug, and then tighten
the locking cap.
Pin
Definition
RS485A OUT, RS485
2
differential signal+
RS485B, RS485
4
differential signal–
6
PE, shielding ground
RS485B, RS485
8
differential signal–
18
Description
Used for cascading
inverters or connecting to
devices such as the
SmartLogger.
-
Used for connecting to
RS485 slave devices.
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