AT Command Set

 

 

6

CYCLIC SLEEP mode:

 

 

 

AT+CFUN=6 disconnects any circuit-switched call in prog-

 

 

 

ress, but has no effect on a GPRS call. The ME goes into

 

 

 

the power saving mode 10 minutes after the last character

 

 

 

was transmitted over the serial interface. Sending charac-

 

 

 

ters over the serial interface resets the timer.

 

 

 

The first wake-up event stops power saving. Also, you can

 

 

 

enter AT+CFUN=1 to terminate power saving.

 

<rst>

0

The <rst> parameter can only be used if +CFUN=1, 5 or 6.

 

 

 

Due to the command syntax, you need to enter <fun>,

 

 

 

followed by <rst>, where <fun> is only a placeholder and

 

 

 

has no effect. See examples below.

 

 

1

ME resets and restarts to full functionality.

 

 

 

After reset and restart, PIN 1 authentication is necessary.

 

 

 

Therefore, you are required to use AT+CPIN again. If

 

 

 

autobauding is enabled it is recommended to wait 3 to 5

 

 

 

seconds before entering the first AT command. For details

 

 

 

on autobauding refer to Chapter 2.45.1

 

 

 

 

Reference

Note

 

 

GSM 07.07

• In multiplex mode, the CFUN profile is shared by all multiplexer channels.

 

When you change the CFUN state on one logical channel, all other logical

 

channels adopt the same state.

 

 

Example 1

To check the level of functionality use the read command:

 

AT+CFUN?

 

 

 

+CFUN: 1

 

Default mode after ME was restarted.

 

Remember that the AT interface is not accessible in NON-CYCLIC SLEEP

 

mode. Consequently, the read command is only useful when the ME is set to

 

full functionality or, when <fun> is set to 5or 6.

 

AT+CFUN?

 

 

 

+CFUN: 5

 

CYCLIC SLEEP mode.

 

 

Example 2

To set the ME to NON-CYCLIC SLEEP mode enter

 

AT+CFUN=0

 

 

 

OK

 

 

 

When, for example, an SMS is being received and indicated by an unsolicited

 

result code (URC), the ME wakes up to full operation.

 

+CMTI: "SM",5

Note that the URC used in this example will appear

 

 

 

only if CMTI=1,1 was configured before. See Chapters

 

 

 

5.10 and 9.1.4.

 

After this, you may want to verify the operating status:

 

AT+CFUN?

 

 

 

+CFUN: 1

 

Indicates that ME has entered full functionality mode.

 

 

Example 3

To enable CYCLIC SLEEP mode, level 6:

 

AT+CFUN=6

 

 

 

OK

 

 

MC35_ATC_01_V04.00

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02.04.2002

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Siemens MC35 manual Rst, At+Cfun?
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MC35 specifications

The Siemens MC35 is a compact and versatile modem designed primarily for mobile communication, data transmission, and machine-to-machine (M2M) applications. Launched in the early 2000s, it quickly became popular due to its blend of performance, reliability, and ease of integration, making it a solid choice for developers and businesses.

One of the key features of the MC35 is its support for GSM and GPRS technologies. This allows it to connect seamlessly to various networks, enabling users to transmit data at speeds that were impressive for its time. The GPRS capability can offer data rates of up to 171.2 kbps, allowing for efficient data transfer even in areas with limited connectivity.

The MC35 is designed to support both SMS and voice functionalities, making it adaptable for a range of applications. This includes remote monitoring, telemetry, and alarm signaling. The ability to send and receive SMS messages is a significant advantage for applications that require immediate alerts and notifications, enhancing its utility in security systems and industrial automation.

Furthermore, the modem is equipped with a range of interfaces, including serial communication (RS232), which makes it compatible with various hardware devices. This facilitates easy integration into existing systems, whether for industrial machinery or consumer electronics. Additionally, it features a robust software development kit (SDK), which enables developers to create custom applications tailored to their specific requirements.

Power consumption is another notable characteristic of the Siemens MC35. It is engineered to be energy-efficient, which is especially important for battery-operated devices or systems that require a prolonged operation without frequent recharging or maintenance.

In terms of physical characteristics, the MC35 is compact and lightweight, allowing it to fit into various enclosure designs without occupying much space. Its durability ensures it can perform reliably in different environments, making it suitable for outdoor and industrial applications.

To summarize, the Siemens MC35 stands out as a reliable modem with a rich feature set that includes GSM and GPRS support, SMS and voice capabilities, easy integration through various interface options, and energy-efficient operation. Its adaptability makes it a valuable tool for a wide array of communication and data transmission tasks, solidifying its place in the evolution of mobile communications technology.
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