Connecting The Rs485 Communications Cable - Huawei SUN2000-100KTL Series User Manual

SUN2000-(100KTL, 110KTL, 125KTL) Series
User Manual

5.8 Connecting the RS485 Communications Cable

Pin Definitions of the Communications Port
Figure 5-25 Communications port
Port Pin
RS485-1 1
3
Protection 5
ground
Issue 07 (2020-09-15)
Definition
RS485A IN, RS485
differential signal+
RS485B IN, RS485
differential signal–
PE, shielding ground
Copyright © Huawei Technologies Co., Ltd.
Pin Definition
2 RS485A OUT, RS485
differential signal+
4 RS485B OUT, RS485
differential signal–
6 PE, shielding ground
5 Electrical Connections
Description
Used for cascading
solar inverters or
connecting to devices
such as the
SmartLogger.
N/A
66