User Manual

1-11
Installing the Application
If the host computer uses a 25-pin COM port, you must use an optional
9-to-25 pin adapter cable between the computer and the Model 639 com-
munications cable as shown in the following illustration.
To Com Port
Model 639
Communications Cable
HJP #4635891
Multifunction Input
Connector
9–25 Pin
Adapter
Model 639
Communications Cable
HJP #4635891
To Com Port
Multifunction Input
Connector