Control Microsystems 5901 - Page 61

5901 High Speed Dialup Modem Hardware Manual
October 19, 2007
60
Defined Values
<carrier> A string which specifies the preferred modem carrier to use in originating or
answering a connection. <carrier> values are strings of up to eight characters,
consisting only of numeric digits and upper case letters. <carrier> values for ITU
standard modulations take the form: <letter><1-4 digits><other letters as needed>.
<automode> A numeric value which enables or disables automatic modulation negotiation (e.g.,
ITU-T V.32 bis Annex A or V.8).
0 = Automode disabled.
1 = Automode enabled. (Default.)
<min_rx_rate> and
<max_rx_rate> Numeric values which specify the lowest (<min_rx_rate>) and highest
(<max_rx_rate>) rate at which the modem may establish a receive connection. May
be used to condition distinct limits for the receive direction as distinct from the
transmit direction. Values for this sub parameter are decimal encoded; in units of
bit/s. Actual values will be limited to possible values corresponding to the entered
<carrier> and fallback <carrier> as determined during operation. (Default = lowest
(<min_rx_rate>) and highest (<max_rx_rate>) rate supported by the selected
carrier.)
<min_tx_rate> and
<max_tx_rate> Numeric values which specify the lowest (<min_tx_rate>) and highest
(<max_tx_rate>) rate at which the modem may establish a transmit connection.
Non-zero values for this sub parameter are decimal encoded; in units of bit/s. Actual
values will be limited to possible values corresponding to the entered <carrier> and
fallback <carrier> as determined during operation. (Default = lowest
(<min_tx_rate>) and highest (<max_tx_rate>) rate supported by the selected
carrier.)
Reporting Current or Selected Values
Command: +MS?
Response: +MS:<carrier>,<automode>,<min_tx_rate>,<max_tx_rate>,
<min_rx_rate>,<max_rx_rate>
Note: The current active settings are reported under control of the +MR parameter.
Example: +MS: K56, 1,300,33600,300,56000 For default values. This example allows
maximum system flexibility to determine optimal receive and transmit rates during operation.
Reporting Supported Range of Parameter Values
Command: +MS=?
Response: +MS: (<carrier>range),(<automode>range),(<min_tx_rate>range),
(<max_tx_rate> range),(<min_rx_rate> range), (<max_rx_rate> range)
Example: +MS: (B103,B212,V21,V22,V22B,V23C,V32,V32B,V34,K56,V90),
(0,1),(300-33600),(300-33600),(300-56000),(300-56000)