CBX800 INSTALLATION MANUAL 
19
 
AUXILIARY INTERFACE 
 
All CBX800s have an RS232 auxiliary interface available on the 9-pin connector below, which can be linked to 
another host computer or an external system. This interface is mainly used for CBX800 configuration through 
Genius™, the multilanguage software tool. Diagnostics and program downloading can be performed from this 
interface. 
 
Connections can be made to a PC or Laptop using a straight through cable or a USB-RS232 converter. 
 
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Figure 20 - 9-pin D-Sub Female Connector 
 
 
With reference to the 9-pin connector of Figure 20, the following pins are used to connect the RS232 auxiliary 
interface: 
 
Pin Name  Function 
2 TX 
Auxiliary Interface Receive Data 
3 RX 
Auxiliary Interface Transmit Data 
5 SGND 
Signal Ground  
1, 4, 6, 7, 8, 9    N.C. 
 
 
 
 RX TX 
Reference
USER INTERFACE 
 
Figure 21 - RS232 Auxiliary Interface Connections 
 
 
 
NOTE 
Do not connect the Aux Interface to the CBX spring clamp connectors and the 9-pin 
connector simultaneously.