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Appendix F - S-Register Summary
Appendix F - S-Register Summary
S-REGISTER UNIT RANGE DEFAULT DESCRIPTION
S0 1 ring 0-255 1 Sets number of rings before modem
answers.
S1 1 ring 0-255 0 Counts rings which have occurred.
S2 ASCII 0-127 43 Sets Escape Code character (default is plus
+ sign).
S3 ASCII 0-127 13 Sets character recognized as RETURN
(default is CTRL-M).
S4 ASCII 0-127 10 Sets character recognized as LINE FEED
(default is CTRL-J).
S5 ASCII 0-32,127 8 Sets character recognized as BACKSPACE
(default is CTRL-H).
S6 1 second 2-255 2 Determines wait-time for
4-255** 4** dial tone.
S7 1 second 1-255 45 Determines how long modem waits for
1-45 55* carrier before aborting call.
1-55*
S8 1 second 0-255 2 Sets pause time caused by a comma
4-255** 4** character in a dial command.
S9 100 mSec 1-255 6 Sets carrier detect response time.
S10 100 mSec 1-255 7 Sets delay time between when carrier is lost
and when modem disconnects.
S11 1 mSec 1-255 70 Sets time duration of and spacing between
80-255* 80* tones in tone-dialing.
S13 ASCII 0-127 37 Defines Remote Configuration Escape
Character
S15 Sec 10-255 20 Defines time delay for Callback attempts
after initial passwords have exchanged.
S16 1 Attempt 1-255 4 Defines the number of Callback attempts
after initial passwords have exchanged
between modems.
S17 10 mSec 0-2.5 250 mSec Defines length of break time (space) to PC.
S24 50 mSec 0-255 20 Sets DSR/CTS/CD dropout time. Default
(20) equals one second.
S25 100 mSec 0-255 0 Sets DTR dropout time. 0 default equals 50
mSec.
S26 1 0-255 0 Specifies number of failed password
attempts allowed.
* Values for International and DOC units only.
** International only.