4 modulation control commands, Conexant, Ms - modulation selection – Comtrol AT Command Set Rev A User Manual
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AT Commands Reference Manual
100722B
Conexant
3-51
3.2.4
Modulation Control Commands
+MS - Modulation Selection
This extended-format compound parameter controls the manner of operation of the
modulation capabilities in the modem. It accepts six subparameters.
Syntax
+MS=[<carrier>[,<automode>[,<min_tx_rate>[,<max_tx_rate>[,<min_rx_rate>
[,<max_rx_rate>]]]]]]
Where possible <carrier>, <min_tx_rate>, <max_tx_rate>, <min_rx_rate>, and
<max_rx_rate> values are listed in Table 3-3.
Table 3-3. +MS Command Supported Rates
Modulation
<carrier>
Possible (<min_rx_rate>, <min_rx_rate>, (<min_tx_rate>),
and <max_tx_rate>) Rates (bps)
Bell 103
B103
300
Bell 212
B212
1200 Rx/75 Tx or 75 Rx/1200 Tx
V.21
V21
300
V.22
V22
1200
V.22 bis
V22B
2400 or 1200
V.23
V23C
1200
V.32
V32
9600 or 4800
V.32 bis
V32B
14400, 12000, 9600, 7200, or 4800
V.34
V34
33600, 31200, 28800, 26400, 24000, 21600, 19200, 16800,
14400, 12000, 9600, 7200, 4800, or 2400
K56flex
K56
56000, 54000, 52000, 50000, 48000, 46000, 44000, 42000,
40000, 38000, 36000, 34000, 32000
V.90
V90
56000, 54667, 53333, 52000, 50667, 49333, 48000, 46667,
45333, 44000, 42667, 41333, 40000, 38667, 37333, 36000,
34667, 33333, 32000, 30667, 29333, 28000
V.92 downstream
V92
56000, 54667, 53333, 52000, 50667, 49333, 48000, 46667,
45333, 44000, 42667, 41333, 40000, 38667, 37333, 36000,
34667, 33333, 32000, 30667, 29333, 28000
V.92 upstream
V92
48000, 46667, 45333, 44000, 42667, 41333, 40000, 38667,
37333, 36000, 34667, 33333, 32000, 30667, 29333, 28000,
26667, 25333, 24000
Note: Some <carrier> values may not be supported by certain model models. For example,
modem models supporting V92 may not support K56.