Airlink AML001 - Manual (Page 56)

Appendix A AT Commands
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+IPR=<DTE rate>—Fixed DTE Rate
Use this command to set the DTE to DCE transmission rate. There are twelve
fixed transmission rates used by the DTE to communicate with the DCE.
This commands select one of the predefined transmission rates. If a rate is
entered which is not supported, the transmission rate defaults to the next
lower rate.
+IPR=0 Automatic rate detection (default).
+IPR=300 300 bits/s.
+IPR=1200 1200bits/s.
+IPR=2400 2400 bits/s.
+IPR=4800 4800 bits/s.
+IPR=9600 9600 bits/s.
+IPR=19200 19200 bits/s
+IPR=38400 38400 bits/s.
+IPR=57600 57600 bits/s.
+IPR=115200 115200 bits/s.
+IPR=230400 230400 bits/s.
+IPR=460800 460800 bits/s.
+IPR=921600 921600 bits/s.
+MA=<carrier 1>,<carrier 2>, ...—Modulation Automode Control
Use this parameter to define a list of modulations that the soft modem may
use to connect with a remote modem for answering or originating automode
(automatic modulation negotiation) data calls. The list acts as an extension to
the modulation specified by the +MS=<carrier> command. The modulation
identified by <carrier> in the +MS command limits the values in the +MA
carrier list. Modulations which exceed the rate set by the +MS command,
generate an ERROR result code and are not implemented by the soft modem.
<carrier> values omitted from the list are not available for automode
negotiation and are not used in automode negotiation even when the modem
is capable of generating the modulation.
+MR=<value>—Modulation Reporting Control
Use this command to enable or disable modulation report result codes. When
the modulation report is enabled, the DCE transmits the +MRR: <rate>,
<rx_rate> and the +MCR:<carrier> intermediate result codes to the DTE.
The <carrier> reported is the current modulation, for example, V.34. The
<rate> reported is the transmit rate in bits per second or is zero if negotiation
fails. The <rx_rate> is the receive channel rate and is only reported when
different receive and transmit rates have negotiated.
The intermediate result codes are transmitted after the modulation and the