Fronius String Control 250/25 Operating Instructions Manual page 151

2 1
*
3
10mm
1
4
2
3
4
IN
2
OUT
5
IN
*
1
3
4
6
OUT
23
+12 V
GND
RX-
TX-
TX+
RX+
GND
+12 V
+12 V
GND
RX-
TX-
TX+
RX+
GND
+12 V