Com. Communication Connection (Optional) - KEHUA TECH SPI-B X2 Series User Manual

3 Installation
WiseSolar+APP can communicate with inverter through WIFI/4G stick to realize the local and remote
maintenance. User can perform the information query, alarm query, event query, parameter setting, etc.
of inverter through WiseSolar+ APP.
Download and install WiseSolar+APP:

Method 1: search WiseSolar+ and download the WiseSolar+ APP through the following
application market, and install the WiseSolar+ APP.
1. Application market (Android Chinese user) ;
2. APP store (iOS) .

Method 2: scan the QR code below to download and install the WiseSolar+ APP according to
prompting.
----End

3.5.6 COM. Communication Connection (Optional)

COM. interface can be set to DRM and RS485 communication interface, they all adopt RJ45 plug to
connect. The pin definition of RJ45 plug is as shown in Figure3-28.
Figure3-28 Pin definition of inverter's RJ45 plug
DRM interface
DRM interface is used to connect with the DRM controlling device.
28
1--8
RJ45 plug
PV Grid-tied Inverter SPI-B X2 Series (8K-25K)
RJ45 interface
Pin definition of RJ45 plug:
PIN 1: White orange - DRM 5
1 2 3 4 5 6 7 8
PIN 2: Orange - DRM 6
PIN 3: White green - DRM 7
PIN 4: Blue - DRM 8
1 2 3 4 5 6 7 8
PIN 5: White blue - RefGen
PIN 6: Green - DRM 0
PIN 7: White brown - METER:A
PIN 8: Brown - METER:B
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