Multi-Tech Systems MT5600SMI-L92 manual Command Transmit Break to Remote, Command Break Control

			Chapter 5 – AT Commands, S-Registers, and Result Codes
Command:	\B	Transmit Break to Remote
Description:		In non-error correction mode, the modem will transmit a break signal to the
		remote modem with a length in multiples of 100 ms according to parameter
		specified. If a number in excess of 9 is entered, 9 is used. The command
		works in conjunction with the \K command.
		In error correction mode, the modem will signal a break through the active
		error correction protocol, giving no indication of the length.
Defined Values:		1-9 Break length in 100 ms units. (Default = 3.)
		(Non-error corrected mode only.)
Result Codes:		OK if connected in data modem mode.
		NO CARRIER if not connected or connected in fax modem mode.
		Note: When the modem receives a break from the remote modem, break is
		passed to the DTE as follows: In non-error correction mode direct, the
		break length is passed; in non-error correction mode normal and in error
		correction mode, a 300 ms break is passed.
Command:	\K	Break Control
Description:		Controls the response of the modem to a break received from the DTE or
		the remote modem or the \B command. The parameter value, if valid, is
		written to S40 bits 3, 4, and 5.
Defined Values:		The response is different in three separate states.
		The first state is where the modem receives a break from the DTE
		when the modem is operating in data transfer mode:
		0	Enter on-line command mode, no break sent to the remote modem.
		1	Clear data buffers and send break to remote modem.
		2 Same as 0.
		3	Send break to remote modem immediately.
		4 Same as 0.
		5	Send break to remote modem in sequence with transmitted data.
			(Default.)
		The second case is where the modem is in the online Command State
		(waiting for AT commands) during a data connection, and the \B is
		received in order to send a break to the remote modem:
		0	Clear data buffers and send break to remote modem.
		1	Clear data buffers and send break to remote modem. (Same as 0.)
		2	Send break to remote modem immediately.
		3	Send break to remote modem immediately. (Same as 2.)
		4	Send break to remote modem in sequence with data.
		5	Send break to remote modem in sequence with data. (Same as 4.)
			(Default.)
		The third case is where a break is received from a remote modem
		during a non-error-corrected connection:
		0	Clears data buffers and sends break to the DTE.
		1	Clears data buffers and sends break to the DTE. (Same as 0.)
		2	Send a break immediately to DTE.
		3	Send a break immediately to DTE. (Same as 2.)
		4	Send a break in sequence with received data to DTE.
		5	Send a break in sequence with received data to DTE. (Same as 4.)
			(Default.)
Result Codes:		OK
		Otherwise ERROR

Multi-Tech Systems, Inc. SocketModem MT5600SMI Developer’s Guide 58