The cables and interface transformers that
should be used are shown in the following
diagrams.
(1) Local link with a maximum distance of 25 m between the Solar Inverter and the PC
SUB-D9 connector
USB
(Sunways cable type 1, null modem cable female / female
(alternative: Sunways cable type 5, USB-device cable)
(2) Local link with an interface transformer between the Solar Inverter and the PC
RS485
(twisted 2-wire cable)
Connection bar
Sub-D9 hub
IC
(Sunways cable type 2, modem cable female / male)
Data +
Data –
IT
134
SUB-D9 connector
PC
USB
SUB-D9 connector
PC