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Siemens TC65 manual Airplane Mode, Alarm, Automatic Shutdown

Models: TC65

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TC65 JAVA User's Guide

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5.4Airplane Mode

The main characteristic of this mode is that the RF is switched off and therefore only a limited set of AT commands is available. The mode can be entered or left using the appropriate at^scfg command. This AT command can also be used to configure the airplane mode as the standard startup mode, see [4]. The JVM is started when autostart is enabled. A Java application must be able to handle this mode. The airplane mode is indicated by URC “SYSSTART AIRPLANE MODE”. Since the radio is off all classes related to networking connections, e.g. SocketConnection, UDPDatagramConnection, SocketServerConnection, HTTPConnection, will throw an exception when accessed.

5.5Alarm

The ALARM can be set with the at+cala AT command. Please refer to the AT Command Set

[3]and Hardware Interface Description [4] for more information. One can set an alarm, switch off the module with at^smso, and have the module restart at the time set with at+cala. When the alarm triggers the module restarts in a limited functionality mode, the “airplane mode”. Only a limited number of AT commands are available in this mode, although the JVM is started when autostart is enabled. A Java application must be able to handle this mode and reset the module to reinstate the normal mode. The mode of a module started by an alarm is indicated by the URC “^SYSSTART AIRPLANE MODE”.

Note: For detailed information which functionality is available in this mode see [4]. The mode indicating URC is created after issuing the very first AT command on any opened channel.

5.6Shutdown

If an unexpected shutdown occurs, data scheduled to be written will get lost due to a buffered write access to the flash file system. The best and safest approach to powering down the module is to issue the AT^SMSO command. This procedure lets the engine log off from the network and allows the software to enter a secure state and save all data. Further details can be found in [4].

5.6.1Automatic Shutdown

The module is switched off automatically in different situations:

•under- or overtemperature

•under- or overvoltage

The shutdown will happen without a warning notification unless the appropriate URC has been activated. If the URCs are enabled, the module will deliver an alert before switching off. To activate the URCs for temperature conditions use the at^sctm command; to activate the voltage condition URCs use the at^sbc command. It is recommended that these URCs be activated so that the module can be shut by the application with at^smso after setting an alarm, see Section 5.5. The commands are described in the AT Command Set [3], while a description of the shutdown procedure can be found in [4].

TC65 JAVA User's Guide_V05

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26.09.2005

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Siemens TC65 manual Airplane Mode, Alarm, Automatic Shutdown
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TC65 specifications

The Siemens TC65 is a compact and powerful GSM/GPRS module designed for a wide range of mobile communication applications. With its robust features, the TC65 perfectly meets the growing demands for connectivity in various industries, including automotive, telematics, and industrial automation.

A standout feature of the TC65 is its compact size, allowing it to be easily integrated into various devices without compromising on performance. The module supports GSM (Global System for Mobile Communications) and GPRS (General Packet Radio Service), providing reliable and efficient voice and data transmission.

One of the key technologies incorporated in the TC65 is its integrated TCP/IP stack, which allows for seamless internet connectivity and enables application developers to create IoT solutions with ease. This capability is essential for remote monitoring, data logging, and other applications that require continuous data exchange.

The TC65 also boasts extensive multimedia capabilities, including support for SMS, MMS, and voice calls. This makes it suitable for applications that require not only data transmission but also communication features. Additionally, it supports various codecs for voice compression, ensuring high-quality audio in voice applications.

Enhanced security features are another highlight of the TC65. It incorporates comprehensive security protocols to safeguard data transmission, making it suitable for sensitive applications in finance, healthcare, and other critical sectors. The module also includes an integrated SIM application toolbox that supports the development of secure and customizable applications.

For developers, the TC65 offers an easy-to-use software development kit (SDK), simplifying the process of application development. This means that businesses can quickly create and deploy solutions tailored to their specific needs.

The module operates across a wide voltage range and is designed to tolerate challenging environmental conditions, making it ideal for industrial use. It supports various interfaces, including UART, GPIO, and I2C, enabling it to connect with a variety of peripherals and sensors, thus expanding its usability.

In summary, the Siemens TC65 combines compact design, versatile communication capabilities, advanced security features, and developer-friendly resources, making it an excellent choice for anyone looking to implement reliable and sophisticated GSM/GPRS communication in their applications. The TC65 is a valuable asset in the evolving landscape of connected devices and IoT solutions.