POWERED
GiovynetSerialPort
Easy Control Serial Port in JAVA to Windows and Linux.

Since the public GiovynetSerialPort has been well acepted due to its easy to use and because is a open source project, its built with the framework JNI (Java Native Interface), and consists of three elements, a file extension Jar, a file extension dll and documentation.
 
More info...
Giovynet CDR9600
Converts RS232 to an 8 Bits Discrete Ouput and Input 
Levels TTL (5VDC)

Giovynet CDR9600 convert signals RS232  to TTL voltages levels (5VDC),  and it converts TTL voltages levels  to RS232 signals.
 

 More info...