Remote-SAT User's Guide

1.1.6.2 Remote-SAT State Transition Table

The following table outlines which AT commands can be issued during certain states. However, the test and read AT commands are available at any time. So it is possible to determine the current state of the interface via AT^SSTA?.

If a response contains text, the selected alphabet has to be used.

Meaning of options in column “M/O/X”:

M:The TA has to issue the AT command to get Remote-SAT service (mandatory).

O:Issue of the AT command is optional.

X:Issue of the AT command is not allowed at this time and will lead to an error message.

State

AT command

 

 

 

 

 

 

 

 

 

 

 

 

 

RESET

State after power on the ME and no notification given by the SIM that an application is

(0)

available. No write version of an AT command is allowed.

 

 

State is entered after SIM removal again.

 

 

Action

M/O/X

 

Description

 

 

^SSTA=1,n

X

 

 

 

 

^SSTGI=<pac>

X

 

 

 

 

^SSTR=<pac>

X

 

 

 

 

^SSTR=<event>

X

 

 

 

OFF

SIM has released its

application.

 

(1)

SAT service is available, but Remote-SAT interface needs to be activated by the TA.

 

 

Action

 

M/O/X

 

Description

 

 

 

^SSTA=1,n

M

Enable SAT service, so that all SAT notifications

may be

 

 

 

 

 

 

issued as URCs (^SSTN:<cmdType>).

 

 

^SSTGI=<pac>

X

 

 

 

 

^SSTR=<pac>

X

 

 

 

 

^SSTR=<event>

X

 

 

 

IDLE

SIM application is

running, but no proactive command has been issued.

 

(2)

Action

M/O/X

Description

 

 

^SSTA=1,n

O

Use to switch to alphabet type <n>

 

 

^SSTGI=<pac>

X

 

 

 

 

^SSTR=<pac>

X

 

 

 

 

^SSTR=<event>

O

Response to indicate TA, i.e. user activity.

 

PAC

SIM application has

issued

a proactive command. This event is signaled to the TA via

(3)

^SSTN:<cmdType>.

 

 

 

 

Action

M/O/X

Description

 

 

^SSTA=1,n

O

Use to switch to alphabet type <n>

 

 

^SSTGI=<pac>

M

Get information related to an issued notification

 

 

 

 

 

 

^SSTN:<cmdType>. This is requested before a response can

 

 

 

 

 

 

be issued via ^SSTR=<pac>.

 

 

^SSTR=<pac>

X

 

 

 

 

^SSTR=<event>

X

 

 

 

WAIT

SIM application is waiting for the response to the ongoing proactive command.

 

(4)

Action

M/O/X

Description

 

 

^SSTA=1,n

O

Use to switch to alphabet type <n>

 

 

^SSTGI=<pac>

X

 

 

 

 

^SSTR=<pac>

M

Issue Terminal Response related to the ongoing

proactive

 

 

 

 

 

 

command.

 

 

^SSTR=<event>

X

 

 

 

MC35_SAT_01_v02.00

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11.01.2002

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Siemens MC35 manual Remote-SAT State Transition Table

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.