53
User Guide
S-Registers
Certain Command Mode configurations are stored in memory registers
called, S-Registers. The S command is used to assign a value to, and to
read the current value of an S-Register. To assign a value to an S-Register,
enter the letter S, followed by the S-Register number and an equals sign (=).
To read an S-Register value, enter the letter S followed by the S-Register
number and a question mark (?), then hit RETURN. To verify that the S-
Register value was entered correctly, enter for example, ATS8? and hit
RETURN. You should receive a response of the assigned value given to
that S-Register.
Register Unit Range Default Description
S0 rings 0, 1255 1 Sets the number of rings before
the modem answers. ATS0=0
disables auto-answer complete-
ly.
S1 rings 0255 0 Counts the number of rings that
have occurred.
S2 decimal 0255 43 (+) Sets ASCII code for the escape
character. Values greater than
127 disable the escape sequence.
S3 decimal 0127 13 (^M) Sets ASCII code for the carriage
return character.
S4 decimal 0127 10 (^J) Sets ASCII code for the line feed
character.
S5 decimal 0255 8 (^H) Sets ASCII code for the back-
space character. Values greater
than 32 disable the backspace
character.