AT Command Set

Table 10: Operating modes of the ME indicated by status LED (if <mode> = 1):

LED mode

Function

 

 

Off

MC35 module: ME is off or running in SLEEP, Alarm or

 

Charge-only mode.

 

MC35 Terminal: ME is off or in SLEEP mode.

 

 

600 ms On / 600ms Off

No SIM card inserted or no PIN entered, or network

 

search in progress, or ongoing user authentication, or

 

network login in progress.

 

 

75 ms On / 3 s Off

Logged to network (monitoring control channels and user

 

interactions). No call in progress.

 

 

75 ms on / 75 ms Off / 75 ms On / 3 s Off

One or more GPRS contexts activated.

 

 

Flashing

Indicates GPRS data transfer: When a GPRS transfer is in

 

progress, the LED goes on within 1 second after data

 

packets were exchanged. Flash duration is approximately

 

0.5 s.

 

 

On

Depending on type of call:

 

Voice call: Connected to remote party.

 

Data call: Connected to remote party or exchange of pa-

 

rameters while setting up or disconnecting a call.

 

 

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Siemens MC35 manual LED mode Function
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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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