SocketModem® MT2492SMI AT Commands Reference Guide
●AT commands can be issued only when the modem is in command mode or online command mode.
■The modem is in command mode whenever it is not connected to another modem.
■The modem is in data mode whenever it is connected to another modem and ready to exchange data. Online command mode is a temporary state in which you can issue commands to the modem while connected to another modem.
■To put the modem into online command mode from data mode, you must issue an escape sequence (+++); e.g., +++ATH to hang up the modem. To return to data mode from online command mode, you must issue the command ATO.
●To send AT commands to the modem you must use a communications program, such as the HyperTerminal applet in Windows or some other available terminal program. You can issue commands to the modem either directly, by typing them in the terminal window of the communications program, or indirectly, by configuring the operating system or communications program to send the commands automatically. Fortunately, communications programs make daily operation of modems effortless by hiding the commands from the user. Most users, therefore, need to use AT commands only when reconfiguring the modem; e.g., to turn auto answer on or off.
●The format for entering an AT command is ATXn, where X is the command and n is the specific value for the command, sometimes called the command parameter. The value is always a number. If the value is zero, you can omit it from the command; thus, ATM is equivalent to ATM0. Most commands have a default value, which is the value that is set at the factory.
●You must press ENTER (it could be some other key depending on the terminal program) to send the command to the modem. Any time the modem receives a command, it sends a response known as a result code. The most common result codes are OK, ERROR, and the CONNECT messages that the modem sends to the computer when it is connecting to another modem. See a table of valid result codes at the end of this chapter.
●You can issue several commands in one line, in what is called a command string. The command string begins with AT and ends when you press ENTER. Spaces to separate the commands are optional; the command interpreter ignores them. The most familiar command string is the initialization string, which is used to configure the modem when it is turned on or reset, or when your communications software calls another modem.
|
MT2492SMI 、 MT2492SMI-92 、 MT2492SMI-L-92 、 MT2492SMI-34 、 MT2492SMI-L-34 、 MT2492SMI-22 、 MT2492SMI-22L |
|
|
|
|
|
|
|
|
User's Guide |
|
|
|
|
Please see the document for details |
|
|
|
|
|
|
|
|
|
|
|
English Chinese Chinese and English Japanese |
|
|
2010/2/19 |
|
|
Version C |
|
|
|
|
|
258 KB |
- +1 Like
- Add to Favorites
Recommend
- High-precision Hall sensors SLKOR SL1629SH Specifically Designed for Compact Systems and Battery-sensitive Applications
- TE Connectivity Launches VITA 87 High Density Circular MT Connectors, Offering Higher Density for Next-Generation Embedded Systems
- Are All UPS Systems the Same?
- TE New Sensor Systems Architecture Standard Drives Interoperability for Military Embedded Systems
- Aavid‘s Modular Liquid Cooling Systems: Build a semi-custom system with high performance compatible components
- TMS Introduces New 1/2“ Plenum RF Cable for Distributed Antenna Systems (DAS) Networks
- Times Microwave Systems’ Custom Coiled Cable for RF Systems with Frequencies up to 3GHz
- Laird Thermal Systems Commits to Sustainable Principles with SBTi-Endorsed Emissions Goals
All reproduced articles on this site are for the purpose of conveying more information and clearly indicate the source. If media or individuals who do not want to be reproduced can contact us, which will be deleted.
Integrated Circuits
Discrete Components
Connectors & Structural Components
Assembly UnitModules & Accessories
Power Supplies & Power Modules
Electronic Materials
Instrumentation & Test Kit
Electrical Tools & Materials
Mechatronics
Processing & Customization
