Huawei LUNA2000-30-S0 Quick Manual page 17

COM Port Pin Definitions
SUN2000-(3KTL-12KTL)-M1
COM Port Pin Definitions
Battery terminals (BAT+/BAT–)
No. Label Definition
RS485B, RS485
3 485
differential signal–
B2
RS485A, RS485
4 485
differential signal+
A2
5 GND GND
EN+ Enable signal+
6
Battery terminals (BAT+/BAT–)
No. Label
7 485A2
9 485B2
EN+
11
13 GND
16
Description
Used for connecting to
the RS485 signal ports of
the battery.
Used for connecting to
GND of the enable signal.
Used for connecting to
the enable signal of the
battery.
Definition Description
RS485A, RS485 Used for connecting to
differential
the RS485 signal ports of
signal+
the battery.
RS485B, RS485
differential
signal–
Enable signal+
Used for connecting to
the enable signal of the
battery.
GND Used for connecting to
GND of the enable signal.
COM port (COM)
COM port (COM)