User guide
Xenus Plus User Guide    Wiring 
Copley Controls  95 
4.7: RS-232 Serial Communications 
Mating Connector 
6-position, modular connector (RJ-11 style). 
Copley Controls provides a prefabricated cable and modular-to-9-pin sub-D adapter in RS-232 
Serial Cable Kit, PN SER-CK. 
A diagram of the female connector is shown below. 
Pin Description 
Pin 
Signal 
Function 
1 
N/C 
No connection 
2 
RxD 
Receive data input from computer 
3 
Signal ground 
Power supply ground 
4 
Signal ground 
Power supply ground 
5 
TxD 
Transmit data output to computer 
6 
N/C 
No connection 
RS-232 Serial Communications Wiring Diagram 
XEL,XPL, and XML drives use connector J6. XE2, XP2, 800-1782, and 800-1808 drives use 
connector J7. 
1 2 3 4 5 6
Drive Jx
Rx D
ground
ground
Tx D
To PC
RS-232
Port
Jx-6
Jx-5
Jx-4
Jx-3
Jx-1
Jx-2










