3Com Courier Reference page 166

B-10 A B: A
PPENDIX LPHABETIC
C S
OMMAND UMMARY
Command Function
&Rn Received data (RTS) hardware flow control.
&R0
&R1
&R2
&Sn Send the computer a Data Set Ready (DSR) signal via the
EIA-232 interface.
&S0
&S1
&S2
&S3
&S4
&S5
&Tn Test the modem.
&T0
n=29
n=30
n=31
n=32
n=33
n=34
n=35
n=36
n=37
n=38
n=39
Delay Clear to Send (CTS) response after Request
to Send (RTS).
Ignore RTS. This setting is required if your
computer or terminal or software does not
support RTS.
Enable hardware flow control of received data.
The modem sends data to the computer only
upon receipt of the RTS signal.
DSR is always ON (override).
In Originate mode: Send DSR after dialing, on
detection of the remote device's answer tone. In
Answer mode: Send DSR after sending an answer
tone.
When Carrier is lost, send a pulsed DSR signal
with Clear to Send (CTS) following Carrier Detect
(CD). This option is for specialised equipment such
as automatic callback units.
Same as &S2, but without the CTS signal.
Send the computer DSR at the same time as CD.
Send DSR normally, and follow CTS with CD.
End testing.
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