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LEONARDO 56
AT&K DATA FLOW CONTROL
&K0
Flow control disable.
&K3
Hardware flow control (RTS/CTS) enable (Default for data modem
modes).
&K4
Software flow control (Xon/Xoff) enable.
&K5
Software flow control (Xon/Xoff) in trasparent mode enable.
&K6
Hardware and software flow control enable (default for fax modem
modes).
AT&P
MAKE/BREAK RATIO
&P0
39%-61% make/break ratio with 10 pulses per second.
&P1
33%-67% make/break ratio with 10 pulses per second.
&P2
39%-61% make/break ratio with 20 pulses per second.
&P3
33%-67% make/break ratio with 20 pulses per second.
AT&Q OPERATING MODE SELECTION
&Q0
Asyncronous direct mode.
&Q5
Operations with error corrector. It is automatically selected with
\N command (different fron 0 and 1).
&Q6
Asynchronous with buffer enabled (AT/N0).
AT&R C106
&R0
In asynchronous mode, C106 is controlled according to V25
handshake reccomandation.
&R1
In synchronous mode, C106 follows the flow control.
AT&S
C107 (DATA SET READY OPTION)
&S0
DSR will remain ON all the time.
&S1
DSR will became active after answer tone has been detected and
inactive after the carrier has been lost.
AT&T
TEST AND DIAGNOSTIC (LOOP)
To use AT&Tn commands the modem must be without error correction (AT\N0).
&T0
Terminate test in progress.
&T1
Local analog loopback.
&T3
Local digital loopback.
&T4
Grant Remote digital loopback test request by remote modem.
&T5
Deny Remote digital loopback test request by remote modem.
&T6
Remote digital loopback.
&T7
Remote digital loopback with self-test.
&T8
Local analog loopback with self-test.
Modem AT Command Set
3.8
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