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AT Command Reference
Command
AT+IPR=<n>
AT&K<n>
AT-K<n>
54
Description
Determine baud rate
Use the command AT+IPR to temporarily set a certain baud rate.
AT+IPR=0
Activates the automatic baud rate detection (default)
AT+IPR=<n> Sets the INSYS Modem 336 LL 2D/4D 5.x Originate / Answer temporarily
to the fixed baud rate n. The following baud rates are supported: 300,
1,200, 2,400, 4,800, 9,600, 19,200, 38,400, 57,600 and 115,200.
The setting AT+IPR is not stored with AT&W.
Select data flow control between the PC and the INSYS Modem 336 LL 2D/4D 5.x Origi-
nate / Answer (handshake)
Fax operation default is RTS/CTS.
No data flow control
AT&K0
Select data flow control RTS/CTS (default)
AT&K3
Select data flow control XON/XOFF
AT&K4
AT&K5
Select transparent data flow control XON/XOFF
AT&K6
Select RTS/CTS and XON/XOFF data flow control
AT&K8
Activates the controlled half duplex operation on the serial interface for
RS485. In this mode, the CTS signal is deactivated (high), while the IN-
SYS Modem 336 LL 2D/4D 5.x Originate / Answer sends data at the se-
rial interface. Thus, the CTS signal can be used as driver release signal
for a RS485 driver. The polarity can be set with AT&R .
Extended MNP functions (MNP 10)
This command determines if a V.42LAP-M connection can be switched to a MNP 10
connection
AT-K0
Disables switching from V.42 LAP-M to MNP 10 (default)
AT-K1
Enables switching from V.42 LAP-M to MNP 10
INSYS Modem 336 LL 2D/4D 5.x Originate / Answer
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