Paradyne KeepInTouch 3766 User Manual page 54

AT Command Set and S-Registers
Table 4-1. AT Command Reference (13 of 18)
AT
Command Description
&P n DIAL PULSE RATIO
This command determines the make/break
(off-hook/on-hook) ratio during pulse dialing.
&P0
&P1
&Q This command is the same as the &M command.
&S n
DSR CONTROL
This command controls the DSR (Data Set Ready) signal
output from the modem. DSR indicates when the modem is
connected to a communications line and is ready.
&S0
&S1
&T n TESTS
The &T command allows you to perform diagnostic tests on
your modem.
A test started by commands &T1–&T8 will run until the &T0
command is entered, or until the timer set by S-Register S18
expires. See page 4-22 for more information on S18.
While a test is running, the modem is in Data mode.
Therefore, you must type the escape sequence (+++) to
enter online Command mode. From online Command mode,
enter &T0 to stop the test or ATO to return to Data mode
and continue the test.
&T0
&T1
(continued on next page)
4-14
Issue 2
Make = 39%, Break = 61%
(for use in the United States).
Make = 33%, Break = 67%
(not recommended for use in the United States).
DSR circuit is always on.
DSR circuit is on during handshaking, off in test or
idle modes. DSR remains on until the call is
disconnected. This mode is sometimes referred to as
Standard RS-232 operation.
Stops any test in progress.
Local Analog Loopback test. This test verifies the
modem's internal operation, as well as the
connection between the modem and the computer.
The modem must be idle (not connected).
May 1995