Huawei SUN2000-110KTL-M0 - Connecting the RS485 Communications Cable

5.8 Connecting the RS485 Communications Cable
Pin
Denitions of the Communications Port
Figure 5-25 Communications port
Port Pin Denition Pin Denition Description
RS485-1 1 RS485A IN, RS485
dierential signal+
2 RS485A OUT, RS485
dierential signal+
Used for cascading
solar inverters or
connecting to devices
such as the
SmartLogger.
3 RS485B IN, RS485
dierential signal–
4 RS485B OUT, RS485
dierential signal–
Protection
ground
5 PE, shielding ground 6 PE, shielding ground N/A
SUN2000-(100KTL, 110KTL, 125KTL) Series
User Manual 5 Electrical Connections
Issue 07 (2020-09-15) Copyright © Huawei Technologies Co., Ltd. 66