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Appendix B. AT Commands
S-Register List
S0 Auto Answer
S2 Command Escape Character
S12 Escape Sequence Guard Time
B-6
\Q0
No flow control
\Q1
Software flow control (XON-XOFF)
\Q2
Invalid (returns ERROR)
\Q3
Hardware flow control (RTS-CTS) (default)
Determines if the port automatically answers an incoming call:
0 = Disable Auto Answer (Port does not answer call)
1 = Enable Auto Answer (Port answers all calls) (default)
Determines which key or character defines the escape command.
The standard escape character is a + sign (ASCII value of 43
decimal). To change the character, set S2 to the desired ASCII
value in the range of 0 to 255. If S2 is set to a character greater
than 127, attempts to escape to command mode are ignored.
Determines the minimum delay required before and after entering
the escape command and the maximum delay between escape
characters for the port to recognize and execute the command. It
is specified in 0.2 second increments, and defaults to 50, setting
the guard time to 1 second. If it is set to 0, then no guard time is
required to escape to command mode; any timed sequence of
three escape characters will immediately cause command
escape.
Async-232 Module User Manual
AT COMMAND LIST
S-Register List
61200182L1-1
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