![background image](http://html1.mh-extra.com/html/santerno/sunway-si/sunway-si_manual_810312088.webp)
SUNWAY
TM
SI
MANUALE
D’USO
88/156
5.5 Communication Connection
SUNWAY
TM
SI inverter is standardly equipped with a RS485 interface and a
RS232 interface.
Figure5.15 RS485 pin
Pin Number
Description
Effect
1
NC
2
GND_W
Ground wire
3
+7V_W
Power supply
4
NC
5
NC
6
NC
7
RS485-A
Transmission RS485
differential signal
8
RS485-B
Table 5.6 RS485 pin port definition