Annotated Bibliography On Gsm Systems - 795 Words

5. GSM MODULE A. Introduction This is a plug and play GSM Modem with a simple to serial interface. It is use for sending SMS, Calling (Answer and decline calls), and other GSM operations that are controlled by simple AT commands from micro controllers and computers. Highly popular SIM300 module is used for all operations. It comes with a standard RS232 interface for easy interface of modem to micro controllers and computers. The modem consists of external circuitry like the power regulation, external antenna, SIM Holder, etc.. needed for experimenting with the SIM300 module. B. Features †¢ Uses most popular SIM300 GSM module . †¢ Provided with Standard serial RS-232 interface for easy connection with computers and other devices . †¢ Provided with Serial TTL interface for easy and direct interface to microcontrollers. †¢ Power on/off control, RING and Network LEDs for easy debugging. †¢ On-board 3V Lithium Battery holder with appropriate circuitry for providing backup for the modules’ internal RTC. †¢ Used for GSM based Voice communications, Data/Fax, SMS,GPRS and TCP/IP stack . †¢ For controlling Standard AT commands can be used . †¢ Provided with On-board wire antenna for better reception. †¢ External antenna can also be added through an SMA connector. †¢ Adjustable serial baud rate from 1200 to 115200 bps and 9600 bps by default is allowed. †¢ Less power consumption of 0.25A during normal operations and around 1A during transmission. Operating Voltage: 7 – 15VShow MoreRelatedManaging and Organizing for Innovation in Service Firms a Literature Review with Annotated Bibliography30787 Words   |  124 Pagesfirms A literature review with annotated bibliography annika schilling andreas Werr stockholm school of economics Title: Managing and Organizing for Innovation in Service Firms. A literature review with annotated bibliography Author: Annika Schilling Andreas Werr - Stockholm School of Economics Series: VINNOVA Report VR 2009:06 ISBN: 978-91-85959-47-1 ISSN: 1650-3104 Published: Februari 2009 Publisher: VINNOVA - Swedish Governmental Agency for Innovation Systems / Verket fà ¶r Innovationssystem