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The difference between the GPRS module and the GSM module

The difference between the GPRS module and the GSM module

The GSM module is a functional module that integrates a GSM radio frequency chip, a baseband processor chip, a memory and a power amplifier device on a circuit board, having an independent operating system, GSM radio frequency processing, baseband processing and a standard interface. Both GPRS module and GSM module belong to the type of data wireless transparent transmission modules, which are often confused by people.

Key technology of serial to Ethernet: work mode of TCP/IP

Key technology of serial to Ethernet: work mode of TCP/IP

Serial to Ethernet, it is not a simple physical layer and data link layer transformation. Since the serial port protocol itself does not have a network layer and a transmission layer, serial to Ethernet, it is that the serial port data is used as the application layer data of TCP/IP, and the TCP/IP encapsulation transmission method is used. The application layer data of TCP/IP is really valid data that TCP/IP transmits. For example, the user actually receives and sends the application layer data through the socket's recv() and send() functions. In this way, through serial to TCP IP, users can use the recv() and send() functions to send and receive serial data.

Key technology of Serial to Ethernet: whether serial to Ethernet or serial to TCP/IP?

Key technology of Serial to Ethernet: whether serial to Ethernet or serial to TCP/IP?

Clarify one concept: whether serial to Ethernet or serial to TCP/IP?Generally speaking, the serial port is generally a UART, which actually only defines the specification of the data link layer, that is, the start bit, the data bit, and the stop bit. However in different physical layers, it is divided into: TTL serial port, RS232 serial port, RS485 serial port and so on.

The role and working mode of industrial serial device server

The role and working mode of industrial serial device server

Industrial serial device server parses the packets from the TCP/IP protocol into serial data streams, Conversely, the serial data stream can also be converted into a TCP/IP protocol data packet to realize data network transmission.

Industrial serial device server features and working principle

Industrial serial device server features and working principle

Industrial-grade serial device server internally integrates HTTP, IP, TCP, ICMP, ARP, SOCK5, UDP, DNS, etc. RS-485/422 conversion provides automatic data control. RS-232/422/485 three-in-one serial interface, 300-230.4KBPS baud rate. It supports dynamic IP (DHCP) and static IP, gateways and proxy servers, and can transfer data over the Internet. It provides data bidirectional transparent transmission, users do not need to make any modifications to the original system. All serial ports have built-in 600W lightning protection. 10/100M Ethernet, automatically detect direct connection or crossover. Multiple connections can be supported at the same time.

Is the GPS module for asset tracking worth the investment?

Is the GPS module for asset tracking worth the investment?

For a long time, asset protection has been the driving force behind the insurance industry. However, no insurance can provide against loss, sometimes, what the insurance company compensates can not meet the loss of valuables at all, many things can not be calculated by money. GPS asset tracking equipment is a very precious tool, it can help you know about every aspect of the current situation, make you able to do some things. GPS provides a positive and active way to protect the asset, you can have 24-hour real-time access to location and valuable personal or business asset statistics.

Three Industrial usage of industrial 4G routers

Three Industrial usage of industrial 4G routers

Since the 3G era, the 4G LTE network has passed a long way. It is not uncommon to have a 4G connection that can provide tens of megabits per second of downlink throughput and several megabits per second of uplink throughput. Even if these numbers are much lower than that 4G promises theoretically, the specification is still deeply impressive, the premise is that you may not be able to get a similar rate from a wired broadband connection, depending on your location.

Which kind of industrial 4g routers is best?

Which kind of industrial 4g routers is best?

If you have any doubt about“ which kind of industrial 4g routers is best”, it must be on that best fits your project. When selecting, you can purchase the router that best fits you according to the project requirement.

One Common reasons for industrial 4G routers not being able to access the network

One Common reasons for industrial 4G routers not being able to access the network

One Common reasons for industrial 4G routers not being able to access the network Firstly, confirm whether the SIM card is identified successfully Although the industrial 4G router has the networking function, it mainly relies on the cellular network of the SIM card for networking. If the SIM card is not a 4G signal, the 4G signal of the industrial router cannot be started for networking. If the SIM card has poor environmental signal, the flow is used up, or the software can not be identified (no service), networking can definitely not be realized.

Christmas is coming, are you ready now?

Christmas is coming, are you ready now?

Hello, everybody,Christmas is coming, are you ready now? Jinan USR IOT Technology Limited prepares to launch marketing promotions during Christmas season 1st Dec.~20th Dec 2018 to express our appreciation to all customers for long-term supports. Welcome to https://en.usr.cn to select the following top-rated items: