REFUSOL 20K-2T - USB and COM Ports

REFUsol 20K-2T (853P020.200)
User manual
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1.USB Port 2.COM Port
Figure 5-17: Communication connection Port
5.5.1. USB Port
Port Description
：
USB port
USB flash disk access
Use for updating the software
USB acquisition stick
(WIFI or Ethernet) access
Use for remote data acquisition and
upgrading of inverter
Procedure：
①
②
③
For details, please refer to the user manual of USB acquisition stick.
5.5.2. COM—Multi function communication port
Table 5-3: Recommend COM cable size
Name
Type
Outer diameter
(mm)
Area
(mm²)
RS485
Outdoor shielded twisted
2 or 3core：4~8
0.25~1