User Manual
Table Of Contents
- Introduction
- Laptop System Requirements
- Hardware Installation
- Windows Installation
- Windows Modem Troubleshooting
- Modem Diagnostics Tool
- Windows NT 4.0 Modem Setup Installation
- Starting the Configuration Utility
- Configuration Menu
- Setting the Profile
- Setting the Mode
- Setting the SSID
- Setting the Transmit Rate
- Enabling Power Save Mode
- Selecting the Ad Hoc Channel
- Encryption Menu
- Disabling Encryption
- Enabling Encryption
- Creating Encryption Keys Using a Passphrase
- Creating Encryption Keys Manually
- Default Key
- Link Menu
- About Menu
- Introduction to Modem AT Commands
- Special Commands
- AT Command Reference
- Modem S-Registers
- Modem Result Codes
- Wireless Ethernet Mini PCI Adapter Specifications
- Technical Support
- Warranty
- FCC Regulations - Part 15 Declaration of Conformity (DoC)
- Canadian Department of Communications Industry Canada (IC) Notice
- European Community - CE Mark Declaration of Conformity
- European Union CTR 21 Compliance
- New Zealand Telepermit Compliance Notes
- Japan Regulatory Notices
34
Modem AT Commands
Appendix A
Mini PCI User’s Guide Xircom Inc
Syntax:
AT+MS=<carrier>,<automode>,<min_rate>,<max_rate>
AT+MS?
AT+MS=?
+MS?
Reports the current settings of subparameters
+MS=?
Displays range of acceptable values for each subparameter
<carrier>
Specifies the preferred modulation to be used in originating or answering a connection. The <carrier>
subparameter is an unquoted string of characters. If the <carrier> parameter is specified, the other
subparameters will revert to factory defaults. If <carrier> is omitted, any unspecified parameters will
keep their current values (for example, AT+MS=,0 or AT+MS=,,,2400).
Values accepted for <carrier> are the following:
B103 Bell 103 (300bps)
B212 Bell 212A (1200bps)
V21 ITU-T V.21 (300bps)
V22 ITU-T V.22 (1200bps)
V22B ITU-T V.22bis (2400bps)
V23C ITU-T V.23 with constant carrier (1200/75 or 75/1200bps)
V32 ITU-T V.32 (4800 or 9600bps)
V32B ITU-T V.32bis (4800 - 19200bps)
V34 ITU-T V.34 (2400 - 33600bps)
K56
Lucent/Rockwell K56flex (32000 - 56000bps). Not applicable under the V.90 standard. To set
V.90, see S-Register S109.
<automode> Enables or disables negotiation of an alternative <carrier> if the preferred modulation is not available.
Values accepted for <automode> are the following:
0 Disabled. Modem will disconnect if it is unable to negotiate a connection with the specified
<carrier>.
1
Enabled (default). If the specified <carrier> is unavailable, modem will attempt to negotiate an
alternative carrier as appropriate.
<min_rate>
Specifies the lowest bit rate at which the modem may establish a connection. (This value is fixed at
zero for the Xircom modem.)
<max_rate>
Specifies the highest bit rate at which the modem may establish a connection. For modulations that
support only a fixed bit rate (such as V.22bis), <max_rate> has a fixed value to which it defaults. If the
default rate or a rate other than zero is specified, the modem will return ERROR. This subparameter
accepts the following values:
0
, 300, 1200, 2400, 4800, 7200, 9600, 12000, 14400, 16800, 19200,
21600, 24000, 31200, 33600bps. If unspecified (set to 0), <max_rate> is determined by the value of
<carrier>.
If the <carrier> setting is K56, the <max_rate> subparameter should be left at the default value (zero).