Huawei SUN2000-175KTL-H0 User Manual page 70

SUN2000-(175KTL-H0, 185KTL-INH0, 185KTL-H1)
User Manual
Pin Definitions of Communications Ports
Figure 5-20 Communications ports
Port Pin
RS485-1 1
3
PE 5
RS485-2 7
Procedure
Step 1 Install the communications cable.
Issue 19 (2023-12-20)
Definition
RS485A IN, RS485
differential signal+
RS485B IN, RS485
differential signal–
PE, shielding ground
RS485A, RS485
differential signal+
Copyright © Huawei Technologies Co., Ltd.
Pin Definition
2 RS485A OUT, RS485
differential signal+
4 RS485B OUT, RS485
differential signal–
6 PE, shielding ground
8 RS485B, RS485
differential signal–
5 Electrical Connections
Description
Used for cascading
inverters or
connecting to
devices such as the
SmartLogger.
-
Used for connecting
to RS485 slave
devices.
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