Install and Configuration 2-19
Table 2-6. S-Register Definitions
Register Unit Range Description
S0 1 ring 0-255 Sets number of rings until modem answers.
S1 1 ring 0-255 Counts rings which have occurred.
S2 ASCII 0-127 Sets escape code character.
S3 ASCII 0-127 Sets character recognized as RETURN.
S4 ASCII 0-127 Sets character recognized as LINE FEED.
S5 ASCII 0-127 Sets character recognized as BACKSPACE.
S6 1 second 2-255 Determines wait time for dial tone.
S7 1 second 1-255 Determines how long modem will wait for carrier before aborting
the call.
S8 1 second 0-255 2 sets pause time caused by a comma character in a dial command.
S9 100 mSec 1-255 Sets carrier detect response time.
S10 100 mSec 1-255 Sets delay time between when carrier is lost and when modem
disconnects.
S11 1 mSec 1-255 Sets time duration of and spacing between tones in tone-dialing.
S13 ASCII 0-127 Determines remote configuration escape character.
S17 10 mSec 0-2.5 Determines length of break time in seconds (space) to PC.
S24 50 mSec 0-255 Sets DSR/CTS/CD dropout time.
S25 100 mSec 0-255 Sets DTR dropout time.
S26 1 0-255 Specifies allowed failed attempts.
S30 minutes 0-255 Inactivity timer used to disconnect modem.
S32 100 mSec 0-255 Set duration in which modem will wait for a <RETURN> to be
entered during escape sequence execution.
S34 ASCII 0-60 Buffer length of command mode after on-line escape sequence.
Table 2-7. Modem Result Codes
Digit Words Effect
0 OK Command was executed without error, ready for next command.
1 CONNECT Modem has detected carrier and gone on-line.
2 RING Modem has detected ring caused by incoming call.
3 NO CARRIER No carrier signal has been detected within the allowed time.
4 EEROR Error in command line (too many, or invalid characters).
5 CONNECT 1200 Modem has detected carrier at 1200 bps and gone on-line.
6 NO DIAL TONE No dial tone has been detected.
7 BUSY A busy signal has been detected.
8 NO ANSWER Remote system did not answer.
9 CONNECT 2400 Modem has detected carrier at 2400 bps and gone on-line.
11 CONNECT 4800 Modem has detected carrier at 4800 bps and gone on-line.
12 CONNECT 9600 Modem has detected carrier at 9600 bps and gone on-line.
13 CONNECT 14400 Modem has detected carrier at 14400 bps and gone on-line.
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