Huawei SUN2000L User Manual page 59

SUN2000L-(2KTL-5KTL)
User Manual
Figure 5-20 COM Ports
The COM port provides two RS485 communications ports and one enable signal port to
connect to Smart Power Sensors, batteries, and so on.
Table 5-3 COM port definitions
No.
1
2
3
4
5
6
7
8
Issue 06 (2020-03-19)
Label Definition
485B1 RS485B, RS485 differential
signal–
485A1 RS485A, RS485 differential
signal+
485B2 RS485B, RS485 differential
signal–
485A2 RS485A, RS485 differential
signal+
EN– Enable signal–
EN+ Enable signal+
N/A N/A
PE Shielding ground
Copyright © Huawei Technologies Co., Ltd.
5 Electrical Connections
Description
Reserved, can connect to the
RS485 signal port on the
Smart Power Sensor.
Reserved, can connect to the
RS485 signal port and
enable signal port on a
battery.
N/A
Connects to the shield layer
of the cable.
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