Datasheet

INSYS Modem 336/56k 4.1 (UL) AT Command Set
Command Description
AT-TTE=U1,
U2, U3
Parameter configuration for priority circuit
The command AT-TTE=U1, U2, U3 will set the change of the loop voltage. The settings
are required to detect AT-STE=<n>.
(see Chap.
5.13)
U1 Line busy
Factory setting: u1=1000 (10V)
U2 Going off-hook on account of a telephone connected in series
Factory setting: u2=100 (1V)
U3 Remote terminal connection abort
Factory setting: u3=500 (5V)
These settings cannot be stored with AT&W in the power fail-safe memory.
AT*U<n> Select the data format at the serial interface
The data format can be preselected with this command. This will, however, not switch off
the automatic detection. As soon as an AT is recognized, the serial interface will set itself
to the recognized speed and protocol.
If no AT is sent, the selected protocol is maintained until a hardware reset is performed.
If the selected protocol should be maintained longer, it must be stored with AT&W.
This command will not change the registry S23! It only changes if the
automatic speed and protocol detection is used.
AT*U0 8 data bits, no parity, 1 stop bit
AT*U1 7 data bits, odd parity, 1 stop bit
AT*U2 7 data bits, even parity, 1 stop bit
AT*U3 7 data bits, no parity, 1 stop bit
AT*U4 7 data bits, odd parity, 2 stop bits
AT*U5 7 data bits, even parity, 2 stop bits
AT*U6 7 data bits, no parity, 2 stop bits
AT*U7 8 data bits, odd parity, 1 stop bit
AT*U8 8 data bits, even parity, 1 stop bit
AT*U9 8 data bits, no parity, 2 stop bits
ATV<n> Format of modem messages
This command determines if the modem transmits messages to the application in short
or long format.
ATV0 Messages in short format, i.e. only the error number
ATV1 Messages in long format, i.e. the error text (default)
AT\V<n> Format of connect rate messages
AT\V0 This command enables the display of the connect message in three
lines.
AT\V1 This command enables the display of the connect message in one
line. (default)
July 06 67