S3 Command Line Termination Character (user defined)
This register determines the ASCII values as the carriage return character. This character is used to end command lines and result codes.
Range:
Default: 13 (carriage return)
Units: ASCII
Note: This register value is not stored with &W command.
S4 Response Formatting Character (user defined)
This register determines the ASCII value used as the line feed character. The modem uses a line feed character in command mode when it responds to the computer.
Range:
Default: 10 (line feed)
Units: ASCII
Note: This register value is not stored with &W command.
S5 Command Line Editing Character (user defined)
This register sets the character recognized as a backspace and pertains to asynchronous only. The modem will not recognize the backspace character if it is set to a value that is greater than 32 ASCII. This character can be used to edit a command line. When the echo command is enabled, the modem echoes back to the local DTE the backspace character, an ASCII space character, and a second backspace character. This means a total of three characters are transmitted each time the modem processes the backspace character.
Range:
Default: 8 (backspace)
Units: ASCII
Note: This register value is not stored with &W command.