Pin
Definitio
n
Functions
Remarks
Pin
Definitio
n
Functions
Remarks
7
485A2
RS485A,
RS485
differential
Used to
connect to the
RS485 signal
port on a
power meter
or battery
8
DIN1
Digital input
signal 1+
Used to
connect to
dry contacts
for grid
scheduling
and used as
a reserved
port for
feedback
signals of
the Smart
Backup Box
9
485B2
RS485B,
RS485
differential
signal–
10
DIN2
Digital input
signal 2+
Used to
connect to
dry contacts
for grid
scheduling
11
EN
Enable signal
Used to
connect to the
enable signal
of the battery.
12
DIN3
Digital input
signal 3+
13
GND
GND
–
14
DIN4
Digital input
signal 4+
15
DIN5
Rapid
shutdown
Used to
connect to the
rapid
shutdown DI
signal port or
used as the
reserved port
for the signal
cable of the
NS protection
device.
16
GND
GND of
DI1/DI2/DI3
/DI4
Used to
connect to
the GND of
DI1/DI2/DI3/
DI4
Networking Modes
●
Smart Dongle networking
SUN2000-(3KTL-10KTL)-M1
User Manual
5 Electrical Connections
Issue 02 (2020-11-20)
Copyright © Huawei Technologies Co., Ltd.
50
