Serial Summary

This screen provides the following:

Fields

Field Description
Port The port number that corresponds to the port number on the connector cable.
State Open means the port is in use, and Closed means it is not. Loopback Test or Echo Test can appear if you are testing the port with either the echo or the loopback test. 
Byte Count (Tx/Rx) The number of bytes transmitted and received since the port was last reset.

Note: These counters are not available when the port is being tested with either the echo or loopback test.

RTS/CTS/DTR/DSR/RI/DCD EIA-232 control signal state. Gray indicates inactive or low signal, and blue indicates active or high signal.
Flow Control (In/Out) Indicates whether or not data has been paused due to either hardware flow control or software flow control. Normally these values are blank; red indicates that the data has been paused.
Error Counts The number of parity, overrun, and framing errors on this port since it was last reset.
Reset Resets the channel. Closes the port if it is open, disrupts any communication that might be happening, flushes all data and returns the port to a closed state. Because this option should be used with caution, a dialog box appears asking if you want to reset this channel. 

CAUTION: Ensure that you have a purpose in resetting the channel.

Test Choosing Test takes you to the Test Mode screen where you can test your transmission with either the Terminal Echo Test or External Loopback Test. 

The echo test determines the validity of your transmissions. 

The loopback test ensures that the port on the adapter is working properly. 

Display Results returns you to one of the Test Results screens where you can also end the test.