User manual
   ADT-HC4500 CNC Flame/Plasma Controller 
95
It is suggested that the supply voltage be < 24V; it is better not to exceed 30V. Positive and negative 
poles should not be connected reversely and the load should not be in short circuit; otherwise, it may 
cause unexpected damage. 
2.2.4 Serial port communication interface— 9-core socket (Male) 
GND
NC
RXD
XS9
5
9
4
8
3
7
2
6
1
NC
NC
NC
TXD
NC
NC
Line S/N  Name  Function 
1 NC Null 
2  T XD  Transmitting data (For software engineer use) 
3  RXD  Receiving data (For software engineer use) 
4 NC Null 
5 GND Grounding 
6 NC Null 
7 NC Null 
8 NC Null 
9 NC Null 
Connection mode of communication signal: 
RS-232 communication mode 
Controller 
PC 










