Huawei SUN2000 Series - Page 11

10
(Optional) Installing the Signal Cable
3.6
There are two types of Smart Dongle involved in this document:
• WLAN-FE Smart Dongle: SDongleA-05
• 4G Smart Dongle: SDongleA-03
For details, see the quick guide that is delivered with the Smart Dongle. You can scan the QR code
to obtain it.
• Not all inverter models are delivered with the
signal cable connector.
• When laying out the signal cable, separate it
from the power cable and keep it away from
strong interference sources to avoid strong
communication interference.
• Ensure that the protection layer of the cable is
inside the connector, surplus core wires are
cut off from the protection layer, the exposed
core wire is totally inserted into the cable hole,
and that the cable is connected securely.
• If the Smart Dongle is configured, you are
advised to install the Smart Dongle before
connecting the signal cable.
Communications Port Pin Definition
Pin
Definition
Function
Description
Pin
Definition
Function
Description
1
485A1
-1
RS485
differential
signal+
Used to cascade
inverters or connect
to the RS485 signal
port on the
SmartLogger1000A
2
485A1
-2
RS485
differential
signal+
Used to cascade
inverters
or
connect to the
RS485 signal port
on the
SmartLogger1000A
3
485B1
-1
RS485
differential
signal
–
4
485B1
-2
RS485
differential
signal
–
5
PE
Shielding
ground
N/A
6
PE
Shielding
ground
N/A
7
485A2
RS485
differential
signal+
Used to connect to
an RS485 signal
port on a Smart
Power Sensor for
export limitation
8
DIN1
Dry
contact
interface
for grid
scheduling
Connect to
ripple
control receiver.
For details, see the
user manual.
9
485B2
RS485
differential
signal
–
10
DIN2
11
N/A
N/A
N/A
12
DIN3
13
GND
GND
N/A
14
DIN4
15
N/A
N/A
N/A
16
GND
WLAN-FE 4G