Hakko Electronics Monitouch V9 Series Connection Manual page 231

12-4 12. EMERSON
When Connected at MJ1/MJ2:
RS-232C
Wiring diagram 1 - M2
MJ1/2
Name
RJ - 45
FG
1 23 45 6 78
RD
SD
SG
RS-422/RS-485
Wiring diagram 1 - M4
MJ1/2
RJ-45
1 2 34 56 7 8
+RD/+SD
-RD/-SD
No.
7
8
5
* Use shielded twist-pair cables.
No.
Name
FG
1
2
SG 5
* Use shielded twist-pair cables.
Name
TXD
RXD
GND
Name
+RS485
RS485-
SG