Multi-Tech Systems MT5634SMI V.92 ユーザーズマニュアル
Chapter 1 – AT Commands, S-Registers and Result Codes
Multi-Tech Systems, Inc. SocketModem MT5634SMIxx Reference Guide (S000263C)
22
V.92 Commands
Command: +MS= Modulation
Selection
Values: See
description.
Defaults:
See
description.
Description:
This extended-format command selects modulation, enables or disables automode,
and specifies the highest downstream and upstream connection rates using one to
four subparameters.
four subparameters.
The command syntax is
+MS=[mod][,[automode][,[0][,[max_rate][,[0][,[max_rx_rate]]]]]]<CR>
Subparameters that are not entered retain their current value. Commas separate
optional subparameters, and must be inserted to skip a subparameter. Example:
+MS=,0<CR> disables automode and keeps all other settings at their current
values.
+MS=[mod][,[automode][,[0][,[max_rate][,[0][,[max_rx_rate]]]]]]<CR>
Subparameters that are not entered retain their current value. Commas separate
optional subparameters, and must be inserted to skip a subparameter. Example:
+MS=,0<CR> disables automode and keeps all other settings at their current
values.
+MS=? Reports supported options in the format (list of supported mod values),(list of
supported automode values),(0),(list of supported max_rate values),(0),(list of
supported max_rx_rate values). Example: +MS: (BELL103, V21, BELL212A, V22,
V22B, V23C, V32, V32B, V34, V90, V92), (0, 1), (0), (0-33600), (0), (0-56000)
supported max_rx_rate values). Example: +MS: (BELL103, V21, BELL212A, V22,
V22B, V23C, V32, V32B, V34, V90, V92), (0, 1), (0), (0-33600), (0), (0-56000)
+MS? Reports current options in the format mod, automode, 0, max_rate, 0, max_rx_rate.
Example: +MS: V92, 1, 0, 31200, 0, 56000.
Subparameters
mod
Specifies the preferred modulation (automode enabled) or the modulation to use in
originating or answering a connection (automode disabled). The default is V92.
mod
Modulation
Possible rates (bps)
1
V92
2
V92
56000, 54666, 53333, 52000, 50666, 49333,
48000, 46666, 45333, 44000, 42666, 41333.
40000, 38666, 37333, 36000, 34666, 33333,
32000, 30666, 29333, or 28000
48000, 46666, 45333, 44000, 42666, 41333.
40000, 38666, 37333, 36000, 34666, 33333,
32000, 30666, 29333, or 28000
V903 V.90
56000,
54666,
53333, 52000, 50666, 49333,
48000, 46666, 45333, 44000, 42666, 41333.
40000, 38666, 37333, 36000, 34666, 33333,
32000, 30666, 29333, or 28000
40000, 38666, 37333, 36000, 34666, 33333,
32000, 30666, 29333, or 28000
V34
V.34
33600, 31200, 28800, 26400, 24000,
21600,19200, 16800, 14400, 12000, 9600, 7200,
4800, or 2400
21600,19200, 16800, 14400, 12000, 9600, 7200,
4800, or 2400
V32B V.32bis 14400,
12000, 9600, 7200, or 4800
V32
V.32
9600 or 4800
V22B
V.22bis
2400 or 1200
V22
V.22
1200
V23C V.23
1200
V21
V.21
300
Bell212A Bell
212A
1200
Bell103
Bell 103
300
N o t e s :
1. See optional <automode>, <max_rate>, and <max_RX_rate>
1. See optional <automode>, <max_rate>, and <max_RX_rate>
subparameters.
2. Selects V.92 modulation as first priority. If a V.92 connection
cannot be established, the modem attempts V.90, V.34, V.32bis, etc.
3. Selects V.90 modulation as first priority. If a V.90 connection
cannot be established, the modem attempts V.34, V.32bis, etc.
automode
An optional numeric value that enables or disables automatic modulation
negotiation using V.8 bis/V.8 or V.32 bis Annex A. Automode is disabled if values
are specified for the max_rate and max_rx_rate parameters. The options are:
are specified for the max_rate and max_rx_rate parameters. The options are:
0
Disable
automode
1 Enable automode (default)