Western Telematic SRM-100 - Manual (Page 47)

10. S-Registers
The S-Registers are used to store modem configuration parameters, display modem status, and
initiate modem test and diagnostic functions. In order to invoke commands to change or
display the contents of the S-Registers, you must first access the modem command mode as
described in Section 9.1. Note the following:
· View Status Screen: To display the modem status screen (Figure 9.1), which lists the
current values assigned to most
S-Registers, type AT&V and press [Enter].
· View S-Register Value: To display the value currently assigned to a specific S-Register,
type ATSr? and press [Enter] (Where r is the desired S-Register).
· Change S-Register Value: To change the value assigned to an
S-Register, type ATSr=n and press [Enter] (Where r is the desired S-Register, and n is the
desired value).
· Bit Mapped Registers: Some registers control more than one function. If you wish to
enable several of these functions, add up the decimal values of the desired functions, and
enter the total as the value of the S-Register.
Register Range Default Function
S00 0 - 255 1 Auto Answer. Sets the number of rings on which to answer in Auto Answer
Mode. When set to 0, Auto Answer is disabled.
S01 0 - 255 0 Ring Count. Counts and stores the number of rings from an incoming call.
This value is cleared if a ring is not detected over an 8 second period. If the
value of register S1 equals the value of register S0, the modem will answer
the phone.
S02 0 - 127 43 Escape Character Code. Stores the ASCII decimal code for the escape code
character. The default character is + (043).
S03 0 - 127 13 Carriage Return Character. Stores the ASCII code for the Carriage Return
character. The default value is 013 (normal carriage return).
S04 0 - 127 10 Line Feed Character. Stores the ASCII decimal code for the Line Feed
character. The default value is 010 (normal line feed).
S05 0 - 032 8 Backspace Character. Stores the ASCII decimal code for the Backspace
character. The default value is 008 (normal backspace character).
S06 2 - 255 2 Wait for Dial Tone. Sets the number of seconds the modem will wait between
going off-hook and beginning dialing.
S07 0 - 255 50 Wait for Carrier. Sets the number of seconds the modem will wait for a
carrier signal from a remote modem. If a carrier is not received, the modem
will hang-up and send the NO CARRIER message. Often used to select a
longer duration when the modem is originating an international connection.
S08 0 - 255 2 Pause Time for Carrier. Sets the duration (in seconds) for the Dial command
pause option (,).
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