Table of Contents
Advertisement
\K
Break Control
Description:
Use this command to control the response of the modem to a break received from
the DTE, remote modem, or the \B<value> command. The command values are
different in three situations:
Syntax:
AT\K<value>
Values:
\K<value> – Modem Is Operating in Data Transfer Mode
The modem receives a break from the DTE when it is operating in data transfer
mode.
\K<value> – Modem Is in Online Command Mode During Data Connection
The modem is in the online command state (waiting for AT commands) during a data
connection, and the \B<value> command is received in order to send a break to the
remote modem.
\K<value> – Break Is Received During Connection
The modem receives a break from the remote modem during a connection.
Result Codes:
OK if <value> = 0 to 5.
ERROR if <value> ≠ 0 to 5.
\N
Error Correction Mode Selection
Description:
Use this command to select the type of error control used by the modem when
sending or receiving data.
Syntax:
AT\N<value>
Values:
0
1
2
3
4
5
7
Default:
3
Result Codes:
OK if <value> = 0 to 5, or 7.
ERROR if <value> ≠ 0 to 5, or 7.
Multi-Tech Systems, Inc. AT Commands for the MultiModem & SocketModem MT9234 Series (S000434D)
Chapter 1 – AT Commands, S-Registers, and Result Codes
Values
Function
0, 2, 4
Enter online command mode, no break sent to remote modem.
1
Clear data buffers and send a break to remote modem.
3
Send a break to the remote modem immediately.
5
Send a nondestructive, nonexpedited break to remote modem.
5 is the default.
Values
Function
0, 1
Clear data buffers and send break to the remote modem.
2, 3
Send a break to the remote modem immediately.
4, 5
Send a break to the remote modem in sequence with data.
4, 5 are the defaults.
Values
Function
0, 1
Clear data buffers and send break to the DTE.
2, 3
Send a break to the DTE immediately.
4, 5
Send a break to the DTE in sequence with the received data.
4, 5 are the defaults.
Buffer mode. No error control (same as &Q6).
Direct mode.
MNP or disconnect mode. The modem attempts to connect using MNP2-4
error control procedures. If this fails, the modem disconnects. This is also
known as MNP reliable mode.
V.42, MNP, or buffered. The modem attempts to connect in V.42 error control
mode. If this fails, it will attempt to connect in MNP mode. If this fails, the
modem connects in buffer mode and continues operation. This is also known
as V.42/MNP auto reliable mode (same as &Q5).
V.42 or disconnect. The modem attempts to connect in V.42 error control
mode. If this fails, the modem disconnects.
V.42, MNP, or buffered (same as \N3).
V.42, MNP, or buffered (same as \N3).
18
Advertisement
Table of Contents
