Multitech BL-Series Manual de usuario descargar pdf (Pagina 16)

AT Commands for the MT5656ZDX, MT5600ZDX, MT5600BA/BL-Series Modems

Multi-Tech Systems, Inc. Commands Reference Guide (PN S000273D)

+MS= Modulation Selection Continued

Subparameters

mod A decimal number that specifies the preferred modulation (automode en-

abled) or the modulation to use in originating or answering a connection (auto-

mode disabled).

+MS Command Supported Rates

Modulation carrier> Possible (<min_rx_rate>, <max_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

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.

automode An optional numeric value that enables or disables automatic modulation

negotiation using V.8 bis/V.8 or V.32 bis Annex A. The options are:

0 = Disable automode

1 = Enable automode (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 subparameter

are decimal encoded, in units of bit/s. The possible values for each modulation are listed in

the table above. Actual values will be limited to possible values corresponding to the entered

<carrier> and fall-back <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

subparameter are decimal encoded, in units of bit/s. The possible values for each modulation

are listed in the table above.

Actual values will be limited to possible values corresponding to the entered <carrier> and fall-

back <carrier> as determined during operation. (Default = lowest (<min_tx_rate>) and highest

(<max_tx_rate>) rate supported by the selected carrier.)

MT5600BA LCD:

Command: -Kn MNP Extended Services

Values: n = 0, 1, or 2

Default: 0

Description: Enables or disables conversion of a V.42 LAPM connection to an MNP 10 connection.

-K0 Disables V.42 LAPM to MNP 10 conversion.

-K1 Enables V.42 LAPM to MNP 10 conversion.

-K2 Enables V.42 LAPM to MNP 10 conversion; inhibits MNP Extended Services

initiation during V.42 LAPM answer mode detection phase.

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