ATH Go on-hook, ATOn Return to transparent mode

Technical reference section

returns the result code OK. The connection is not yet cleared down. The pause before and after the "+" characters ensures that the GSM module will interpret this command as the escape command in transparent mode and will then switch to command mode.

Going on-hook

• Disconnect the call by entering ATH (see next section).

ATH - Go on-hook

In command mode, the ATH command causes the GSM module to disconnect an ex- isting call. The call is also disconnected if the distant station goes on-hook or the radio connection in the GSM network is interrupted.

ATOn - Return to transparent mode

If you wish to interrupt the data flow only briefly, you can use the ATOn command to return your GSM module to transparent mode, i.e. the data flows once again.

	ATOn	[n=0]

Option	Result

ATO0	Switches the GSM module back to transparent mode when it was previ-
	ously switched to command mode.

Setting the transfer rate

The GSM module supports the following transfer rates:

Transfer rates

Rate	Bearer	Corresponding modem types
Bit/s	service

2400	24	Analog modems conforming to V.22bis,
		ISDN adapter to V.110 ISDN

4800	25	Analog modemso conforming to V.32 with
		fallback, ISDN adapter to V.110 ISDN

9600	26	Analog modems conforming to V.32,
		ISDN adapter to V.110 ISDN

To change and permanently set the rate for the radio link, use the ATBn command.

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.