S-registers, User guide – Multi-Tech Systems MT5634ZBAV User Manual
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User Guide
70
S-Registers
Certain modem values, or parameters, are stored in memory locations
called S-registers. Use the S command to read or to alter the contents of
S-registers (see previous section).
Register
Unit
Range
Default
Description
S0
1 ring
0, 1–255 1
Sets the number of rings until
the modem answers.
ATS0=0 disables autoanswer
completely.
S1
1 ring
0–255
0
Counts the rings that have
occurred.
S2
decimal
0–127
43 (+)
Sets ASCII code for the
128–255
escape sequence character.
Values greater than 127
disable escape.
S3
decimal
0–127
13 (^M)
Sets the ASCII code for the
carriage return character.
S4
decimal
0–127
10 (^J)
Sets the ASCII code for the
line feed character.
S5
decimal
0–32
8 (^H)
Sets the ASCII code for the
33–127
backspace character. Values
greater than 32 disable
backspace.
S6
seconds 2–65*
2*
Sets the time the modem
waits after it goes off-hook
before it begins to dial the
telephone number.
* These values may be different outside North America.