iMars series PV energy storage inverter
Electrical connection
36
Port no.
Port definition
5
6
RS2485-
7
GND
8
9
PE
10
Figure 5.6 RS485 3 standard connector
RS-485 communication interface definition
Connector pin of inverter
communication
Pin definition
1
+5VDC
2
A
（
）
3
B
（
RS3485-
）
4
GND
Users can select RS-485 1/2/3 to communicate during RS-485 communication. If selecting our
company’s WIFI200, GPRS 200 for monitoring, users only need to connect WIFI200 and
GPRS200 to RS-485 3 to communicate.
5.6 USB connection (reserved)
USB communication interface is used for software update only!
During software update, please connect USB cable to USB interface of inverter.
