Contents

 

Technical reference section

 

The AT standard

16

AT command line prefix

16

Connecting to your GSM module

16

Command syntax of the AT standard

16

Loading the factory configuration and displaying a configuration

17

ATVn - Result codes

17

A/ - Repeat previous command line

18

Setting up and clearing down connections

19

Operating modes

19

Command mode

19

Transparent mode

19

Escape command

19

ATH - Go on-hook

20

ATOn - Return to transparent mode

20

Setting the transfer rate

20

ATBn - Select GSM module’s operating mode

21

ATD - Dial a telephone number

22

Valid dial strings

22

ATDL - Redial last telephone number used

22

AT%Dn - Automatic dialing with DTR

23

ATA - Answer a call

23

ATS0=n - Auto-answer mode

24

Displaying and storing a configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 AT&F - Load factory profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 AT&V - Display configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Configuring the module using AT commands . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Screen outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Limits of screen outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 ATEn - Command echo. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 ATQn - Activate and deactivate result codes . . . . . . . . . . . . . . . . . . . . . . . . 26 ATXn - Extended connect message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Control line options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 AT&Cn - Data Carrier Detect (DCD) options . . . . . . . . . . . . . . . . . . . . . . . . . 27 AT&Dn - Data Terminal Ready (DTR) options . . . . . . . . . . . . . . . . . . . . . . . . 28 Data flow control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Memory commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 AT&Zn=x - Store telephone number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 ATDS=n - Dial stored telephone number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 AT&Wn - Store configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 AT&Yn - Configuration at power-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ATZn - Load user profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

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Siemens M1 manual Technical reference section

M1 specifications

The Siemens M1 is a prominent urban transit solution designed for efficient and sustainable public transportation systems. This innovative metro train has become a staple in various metropolitan areas, known for its balance of performance, safety, and passenger comfort.

One of the key features of the Siemens M1 is its modular design, which allows for flexibility in configuration depending on specific transit needs. The train typically consists of multiple carriages that can be adjusted for length and capacity, accommodating different passenger volumes while minimizing operational costs. This adaptability makes the M1 ideal for growing urban environments where ridership numbers can fluctuate.

The Siemens M1 is built with advanced technologies that enhance its operational efficiency. It utilizes a lightweight construction, primarily through the use of aluminum, which reduces energy consumption while still maintaining structural integrity and safety standards. The train is also equipped with cutting-edge traction systems that ensure smooth acceleration and fast braking, resulting in a comfortable ride for passengers.

Safety is a paramount concern in transit systems, and the M1 incorporates various safety technologies. It features advanced signaling systems that enhance communication between trains and trackside equipment. Moreover, the train is designed with anti-collision measures and real-time monitoring systems that can detect faults before they lead to service disruptions.

Passenger comfort is another critical aspect of the Siemens M1 design. The interiors are spacious and feature modern seating arrangements, allowing for easy movement within the train. Large windows provide natural light and views of the outside environment, contributing to a more pleasant travel experience. The train also offers features like climate control, information displays, and accessibility options for passengers with reduced mobility.

Environmental sustainability is an integral part of the Siemens M1’s design. It is tailored to reduce carbon emissions, featuring energy-efficient systems that lower the overall ecological footprint. Additionally, the train can be integrated with renewable energy sources, further promoting green public transport initiatives.

Overall, the Siemens M1 stands out as a versatile and efficient urban transit option, combining modern technology and design principles that cater to the needs of both operators and passengers. With its focus on safety, comfort, and sustainability, the Siemens M1 continues to play a vital role in shaping the future of urban mobility.