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S-Register List
S-Registers affect the operating parameters of the 392xPlus modems. S-Registers are only
applicable when the DTE Dialer Type configuration option is set for AT. (Refer to the &Mn and
&Qn commands.)
Table 5-3 lists all S-Registers supported by the 392xPlus modems. The first column lists the
S-Register. The second column lists all possible values for that register. The third column lists the
key sequence used to enter the equivalent from the DCP. Use this column to reference commands
in Chapter 4 if further description is necessary.
S-Register Format
S-Registers can be displayed and/or modified when the modem is in Command mode. To display
the value of an S-Register, issue the following command:
To modify the value of an S-Register, issue the following command:
In Table 5-3, the value for n is listed in the S-Register column, and the value for r is listed in the
Description column.
3920-A2-GN31-30
In some countries, the range of allowable values of some
S-Registers are restricted. If the DTE attempts to enter an illegal
value, the modem will answer OK, but it will set the register to the
closest legal value. The DTE can check the actual value of the
register with Sn? command.
TYPE:
ATSn?
Where:
n is the register number.
PRESS:
Enter
TYPE:
ATSn=r
Where:
n is the register number, and r is the new value.
PRESS:
Enter
November 1996
AT Command Set and S-Registers
NOTE
5-15
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