Mux Uart Port Speed; Cmux, Mux Startup Command - Motorola G24 Guide Developer's Manual

RS232 Multiplexer Feature

MUX UART Port Speed

Auto baud rate detection is disabled in the MUX. To set the UART baud rate, the G24 uses the
<port speed> parameter in +CMUX command. If the parameter is absent, the MUX uses the same
baud rate that was in PREMUX state.

+CMUX, MUX Startup Command

This command is used to enable/disable the GSM MUX multiplexing protocol stack. When the
G24 receives a valid +CMUX command, it returns OK and changes its state to MUX-Init. If the
parameters are left out, the default value is used.
Command
Type
Set
Read
Test
3-438
Syntax
+CMUX=<mode> +CME ERROR: <err>
[,<subset>[,<port_speed>
[,<N1>[,<T1>[,<N2>[,<T
2>[,<T3>[,<k>]]]]]]]]
+CMUX? +CMUX: <mode>, [<subset>],
<port_speed>,<N1>, <T1>, <N2>,
<T2>, <T3>+CME ERROR: <err>
+CMUX=? +CMUX: (list of supported
<mode>s),(list of
supported<subset>s),(list of
supported <port_speed>s),(list
ofsupported <N1>s),(list of supported
<T1>s),(list ofsupported <N2>s),(list
of supported <T2>s),(list ofsupported
<T3>s),(list of supported <k>s)
AT Commands Reference Manual
Response/Action Remarks
The Set command
requests the G24 to
open the MUX stack
with various
parameters. This
command works only
in PREMUX state.
The Read command
displays the current
mode and settings. This
command works only
in MUX state.
The Test Command
displays a list of
supported modes and
parameters. This
command works in
both PREMUX and
MUX states.
December 31, 2007