4 at commands, s-registers, and result codes, Multimodemzpx user guide – Multi-Tech Systems MT5634ZPX-PCI-V92 User Manual

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4 AT Commands, S-Registers, and Result Codes

34

MultiModemZPX User Guide

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.

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 in-
serted 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 sup-
ported max_rate values),(0),(list of supported max_rx_rate val-
ues). 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, 33600, 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.

Notes:

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.

V21

V.21

300

V22

V.22

1200

V22B

V.22bis

2400 or 1200

V23C

V.23

1200

V32

V.32

9600 or 4800

V32B

V.32bis

14400, 12000, 9600, 7200, or 4800

V34

V.34

33600, 31200, 28800, 26400, 24000, 21600,19200, 16800,

14400, 12000, 9600, 7200, 4800, or 2400

V90

3

V.90

56000, 54667, 53333, 52000, 50667, 49333, 48000, 46667,

45333, 44000, 42667, 41333. 40000, 38667, 37333, 36000,

34667, 33333, 32000, 30667, 29333, or 28000

V92

2

V.92

56000, 54667, 53333, 52000, 50667, 49333, 48000, 46667,

45333, 44000, 42667, 41333. 40000, 38667, 37333, 36000,

34667, 33333, 32000, 30667, 29333, or 28000

Bell103

Bell 103

300

Bell212A Bell 212A

1200

mod

Modulation Possible rates (bps)

1

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