GPRS DTU serves as a wireless data terminal for IoT applications
A GPRS DTU (Data Terminal Unit) is a wireless device made for Internet of Things (IoT) uses. Its main job is to send data without wires. It does this from faraway devices to a central place. To send data well, a full system must be set up.
GPRS DTU uses the public GPRS network. This network is often known as the “G network.” This network is offered by telecom companies for long-distance wireless data transfer.
Hardware & Software Composition and Compatibility
The device uses strong industrial-grade communication processors. These processors can be 8, 16, or 32 bits.
They also have strong wireless modules for industrial use. It runs on a real-time operating system. This system serves as its software support platform.
GPRS DTU has RS232 and RS485 or RS422 connections. This lets it connect directly to serial devices. This makes data transmission smooth and clear.
The GPRS system uses the current GSM infrastructure. Most hardware in the GSM system stays the same. Typically, you only need a software upgrade for compatibility.
Setting Up Communication and Connected to the Data Center
The GPRS DTU sets up communication by starting a TCP or UDP connection with the data center. You can do this by using the center’s IP address or its domain name. You also need a certain port number.
Once the data center responds, the GPRS DTU confirms that the handshake was successful. It also keeps the communication link active. If the connection is lost, the unit will quickly try to connect back to the center.
Two-Way Communication Implementation
The GPRS DTU lets you communicate both ways using a TCP/UDP connection. This process helps change user serial port data into packets that can work with the GPRS network and back.
When the serial port gets data from a user device, the DTU wraps it in a TCP/UDP packet. Then, it sends the packet to the data center. When the DTU receives TCP/UDP packets from the data center, it pulls out the data. Then, it sends this data through the serial port to the user’s device.
You can use a wired data center to communicate both ways with many GPRS DTUs. This helps keep devices linked in a network.
