King-Meter KM5S–LCD - Connection Layout

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Connection layout
Connector line sequence
Display-side Connector Display-side adapter Switch wiring
Line sequence table
Line sequence
Color
Function
1
Red（VCC）
+
2
Blue(K)
Lock
3
Black(GND)
-
4
Green(RX)
RX
5
Yellow(TX)
TX
Some wire use the water-proof connector, users
are not able to see the inside color.