Pin Definitions of Communications Ports
Figure 5-16
Communications ports
Port
Pin
Definition
Pin
Definition
Description
RS485-1
1
RS485A IN, RS485
differential
2
RS485A OUT, RS485
differential
Used for cascading
inverters or
connecting to
devices such as the
SmartLogger.
3
RS485B IN, RS485
differential signal–
4
RS485B OUT, RS485
differential signal–
PE
5
PE, shielding ground
6
PE, shielding ground
-
RS485-2
7
RS485A, RS485
differential
8
RS485B, RS485
differential signal–
Used for connecting
to RS485 slave
devices.
Procedure
Step 1
Install the communications cable.
SUN2000-(175KTL-H0, 185KTL-INH0, 185KTL-H1
User Manual
5 Electrical Connections
Issue 05 (2020-08-30)
Copyright © Huawei Technologies Co., Ltd.
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