USC520 / USC540 User Manual www.usconverters.com
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3.2. Socket B Communication
USC520/USC540 support double socket communication mode, socket A and socket B. One serial port
corresponding to two socket communication mode can be realized through setting the parameter of socket B.
But socket B is only used for transparent transmission and only worked as TCP client or UDP client.
Set USC520/USC540 as double socket communication mode, the data of serial port will be transparently
transmitted to socket A and socket B at one time. When data comes from socket A and socket B
simultaneously, USC520/USC540 will transmit the data of socket A to serial port firstly, and then transmit the
data of socket B once the data of socket A finished.
Communication example:
1. Set the parameter of socket A and socket B by web page
2. Set up socket A and socket B by “USR-TCP232-Test.exe”, and open serial port which connects to server.
3. Click “Send” on the software, data will be transmitted from socket A and socket B to serial port.
