Data Communication and Host Modes

remote IP/port until no data is sent or received for the time interval defined in the UDP auto answer time‐out (S83). During this session, packets from other IP/port addresses will be rejected, unless *UALL is set. Whether or not an incoming packet will cause the modem to enter a UDP session is always dependent on the S53 and AIP settings.

The Normal UDP Mode (MD3) can be combined with UDP auto answer to cause the incoming serial data to be sent in UDP packets (instead of being treated as AT commands), while allowing sessions to be established from different UDP sources. A UDP session will be initiated either by incoming serial data or by an incoming UDP packet. The session, started by either method, will be terminated when no data has been sent or received for the S82 period. Once the session termi‐ nates, another may be initiated by either means.

When idle, after the time‐out has occurred, the modem is in AT command mode on the serial port, and any valid AT command may be entered during this time.

Tip: It is best to ensure the idle time-outs for TCP and UDP are never 0 if you're going to be using auto-answer, or either PAD mode. In those circumstances, you will want the modem to close the socket if the connection goes idle for too long, particularly if the other side doesn’t normally close the connection.

When the session is initiated by serial data, the new session will be established using the destination address specified in S53. The S53 setting can be changed if the connect to last UDP setting (*UDPLAST=1) is set. The address in S53 will be updated to reflect the address of the last session initiated by an incoming UDP packet. So that when new data is received over the host serial port while in the idle state, a session will be re‐ established with the last address. (This behavior is the same as the previous Hybrid2 (MD6) mode).

Tip: TCP auto answer (S0) may also be set simultaneously with UDP auto answer. Then, when in the idle state, the modem will accept either a TCP or UDP incoming packet, and enter a TCP or UDP session as appropriate.

Reliable UDP

Reliable UDP adds a simple protocol on top of UDP to provide reliable delivery of data. When data is received from the host serial port, a 2 byte header is added to the data, containing a message type and a sequence number. The Raven will continue to send this data (buffering any received data in the meantime)

 

 

 

 

 

 

 

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Sierra Wireless 20070914 manual Reliable UDP
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20070914 specifications

Sierra Wireless 20070914 is a cutting-edge wireless communication module designed for IoT applications, offering remarkable features and robust performance. This module represents a significant advancement in the realm of embedded wireless solutions, catering to a variety of industries including automotive, industrial automation, and smart cities.

One of the key features of the Sierra Wireless 20070914 is its support for multiple cellular standards, including LTE, which ensures high-speed data transfer and reliable connectivity. The module is designed to operate on various frequency bands, making it versatile and suitable for global deployment. This multi-band capability allows businesses to deploy their IoT solutions in different regions without modification, reducing time-to-market and deployment costs.

Another standout characteristic of the Sierra Wireless 20070914 is its comprehensive and seamless integration with cloud services. The module supports advanced cloud connectivity options, enabling real-time data processing and analysis, which is crucial for industries that rely on timely decision-making. This feature is particularly important in sectors like transportation and logistics, where real-time tracking and monitoring are essential.

The power efficiency of the Sierra Wireless 20070914 is noteworthy. It is engineered to operate optimally in low-power modes, making it ideal for battery-operated devices. This focus on energy efficiency ensures prolonged device lifecycles, supporting the growing demand for sustainable and eco-friendly technologies.

Moreover, the module includes encrypted communication features, enhancing security and protecting sensitive data transmissions. With the increasing prevalence of cyber threats, this security aspect is critical for businesses looking to safeguard their IoT applications from unauthorized access and data breaches.

In addition to these features, the Sierra Wireless 20070914 offers comprehensive development support, including software development kits (SDKs) and application programming interfaces (APIs). This makes it easier for developers to integrate the module into their existing systems, streamlining the development process and accelerating innovation.

Overall, the Sierra Wireless 20070914 stands out as a powerful solution for IoT connectivity, blending advanced technology, security, and efficiency. Its capabilities are designed to support the diverse needs of modern industries, paving the way for future innovations and advancements in wireless communication. As businesses increasingly turn to IoT for modernization, modules like the Sierra Wireless 20070914 will play a crucial role in enabling this transformation.
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