Connecting The Rs485 Communications Cables - Huawei SUN2000 Series User Manual

SUN2000-(100KTL, 110KTL, 115KTL)-M2
User Manual
During DC input power cabling, leave at least 50 mm of slack. The axial tension
on PV connectors must not exceed 80 N. Radial stress or torque must not be
generated on PV connectors.
----End

5.8 Connecting the RS485 Communications Cables

Pin Definitions of the Communications Port
Figure 5-24 Communications port
Port Pin
RS485-1 1
3
Protection 5
ground
Issue 02 (2022-06-30)
NO TICE
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.
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