Technical reference section

Overview of the short and long result code formats

Short

Long code

Meaning

code

 

 

 

 

 

0

OK

Command executed, no error

 

 

 

1

CONNECT

Connection set up

 

 

 

2

RING

Ringing signal detected

 

 

 

3

NO CARRIER

Connection not set up or disconnected

 

 

 

4

ERROR

Incorrect command or command too long.

 

 

The AT+CMEE= 2 command allows you to display

 

 

extended error messages to GSM 07.07.

 

 

 

6

NO DIALTONE

Connection cannot be set up.

 

 

 

7

BUSY

Distant station busy

 

 

 

10

CONNECT 2400

Connection at 2400 bit/s

 

 

 

30

CONNECT 4800

Connection at 4800 bit/s

 

 

 

32

CONNECT 9600

Connection at 9600 bit/s

 

 

 

Please note:

In both cases, result codes are made up of ASCII characters. Long result codes must begin and end with <CR> and <LF> characters. Short result codes only end with a <CR> character.

A/ - Repeat previous command line

The A/ command allows you to reissue the previous command line in its entirety. This is the only command that is not preceded by AT and that does not have to end with <CR> (Enter). A/ is mainly used when the line was busy or the call was not answered. In this case, the GSM module repeats the dial command.

Example:

 

 

Enter:

AT D 01999341

GSM module:

BUSY

Enter:

A/

GSM module:

Reissues the command (= D 01999341).

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Siemens M1 manual Connect, Ring, No Carrier, Error, No Dialtone, Busy

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.