Domestic communication, 4 g module in addition to support two kinds of LTE FDD LTE/TD - LTE standard, also compatible with 2 g / 3 g down, support td-scdma/WCDMA/EDGE/GP/GSM/CDMA1X/EVDO mode. The data service downstream rate can reach up to 100Mbps, the uplink rate can reach up to 50Mbps, providing customers with high-speed Internet access and wireless data connection and other functions. In addition to providing high-speed data access, it also provides voice, SMS, communication book and other functions, which can be widely used in notebook, tablet, touch screen communication devices, smart phones, video surveillance, multimedia mobile phones and vehicle equipment and other terminal products and vertical applications. Today, I will introduce you to what is 4G module and how to use 4G module. 4G Module,4G Router Module,4G Wifi Module,4G Lte Wifi Module Shenzhen MovingComm Technology Co., Ltd. , https://www.movingcommtech.com
I. Project Name: LED Electronic Display Project of Huixian Municipal People's Procuratorate II. Project No.: Huicai Inquiry Purchasing [2009] No. 10 III. Purchasing Unit: Huixian Municipal People's Procuratorate IV. Purchasing Content: Double Primary Color Φ3.75LED Electronic display (see the inquiry document for specific parameters).
V. Supplier qualification requirements:
1. Ability to independently assume civil liability;
2. Have a good business reputation and a sound financial accounting system;
3. Have the necessary equipment and professional technical ability to perform the contract;
4. Have a good record of paying taxes and social security funds according to law;
5. In the three years prior to participating in government procurement activities, there were no major illegal records in business activities;
6. Time for receiving the inquiry documents: March 9 to March 11, 2009 (excluding holidays)
Morning: 8:00 to 11:30 pm 2:30 to 5:30
VII. Receiving the inquiry document Location: Huixian Municipal Government Procurement Service Center 8. Deadline for submitting the quotation documents and inquiry time: March 13th, 2009 at 10:30 am
IX. Place of inquiry: Huiyuan Municipal Government Procurement Tendering Hall (West 3rd Floor, Huixian Municipal Finance Bureau)
X. When purchasing documents, you must bring a copy of the business license, a copy of the tax registration certificate (national and local tax), the legal representative's authorization, the ID card of the authorized person, the relevant qualification certificate and a copy of the above-mentioned certification documents (capped) Official seal of the unit). Company Name: Huixian Municipal Government Procurement Service Center Contact: Qiao Wujun, Zhang Guangming, Li Guoli Tel: 13569810399, 0373-6366285, 6256285 E-mail: Fax: Postal Code: Address: Lushan Road, Huixian County 
What is 4G module
4G module said TD-LTE and FDD-LTE and other LTE network standards are collectively referred to. It has the characteristics of fast communication speed, wide network spectrum and flexible communication. 4G module refers to a product whose hardware is loaded to the specified frequency band, software supports the standard LTE protocol, and software and hardware are highly integrated and modular. The hardware integrates radio frequency and baseband on a small PCB board to complete wireless receiving, transmitting and baseband signal processing functions. The software supports voice dialing, SMS sending and receiving, dial-up networking and other functions.
Second, how to use 4G module
The 4G module is usually inserted into the circuit board or the patch module is welded to the circuit board, and the corresponding SIM card is inserted, and the network is connected through the 4G cellular network. In the common transparent transmission mode, data can be directly sent to the target server through the 4G module, and the 4G module can receive data from the server at the same time, and send the data to the serial port, which is received by the serial port device connected to the 4G module. Users do not need to pay special attention to the data conversion process between serial port data and network data packets, only need to insert the module to the target position, simple connection and parameter setting, you can achieve transparent transmission between the serial port and the network end.
What is the 4G module How does the 4G module work
4G module, also known as 4G transmission module, 4G communication module, 4G LTE module. It is a kind of hardware loaded to the specified frequency band, the software supports the standard LTE protocol, and the software and hardware are highly integrated modular products, with good compatibility, fast communication speed, large amount of communication data, wide network spectrum, communication flexibility and other characteristics, widely used in electric power, environmental protection, finance, industrial automation and other fields.
The working principle of 4G module
It has the characteristics of fast communication speed, wide network spectrum and flexible communication. The hardware integrates radio frequency and baseband on a small PCB board to complete wireless receiving, transmitting and baseband signal processing functions. The software supports voice dialing, SMS sending and receiving, dial-up networking and other functions.
Through high-speed networking, the 4G module transmits all terminal business data and equipment operating status to the business center in real time. Through the management monitoring platform, the terminal equipment operating status can be monitored in real time and equipment faults can be timely checked. The efficiency has been greatly improved in many aspects such as operating cost, operation scale and service timeliness. Suitable for shared massage chair, public charging pile, vending machine, vehicle system, environmental monitoring, power remote monitoring and other industries.
4G module refers to a product whose hardware is loaded to the specified frequency band, software supports the standard LTE protocol, and software and hardware are highly integrated and modular. It has the characteristics of fast communication speed, wide network spectrum and flexible communication. The hardware integrates radio frequency and baseband on a small PCB board to complete wireless receiving, transmitting and baseband signal processing functions. The software supports voice dialing, SMS sending and receiving, dial-up networking and other functions. Through high-speed networking, the 4G module transmits all terminal business data and equipment operating status to the business center in real time. Through the management monitoring platform, the terminal equipment operating status can be monitored in real time and equipment faults can be timely checked. The efficiency has been greatly improved in many aspects such as operating cost, operation scale and service timeliness.
Good compatibility
4G module supports FDD LTE/TD-LTE two LTE standards, can also be backward compatible with 2G/3G, support LTE-FDD, LET-TDD, WCDMA, TD-SCDMA, CDMA, GSM and other bands.
Large amount of communication data
4G module downstream rate can reach up to 150Mbps, uplink rate can reach up to 50Mbps, to provide customers with high-speed Internet access and wireless data connection and other functions, suitable for large data transmission applications, such as: remote video surveillance.
High communication speed
The 4G module has a lower ping value than the 2G/3G module, and it takes less time for the module to send data packets to receive the response from the server, which is suitable for applications requiring high response speed, such as remote alarm.
People's Procuratorate LED electronic display project inquiry announcement
Title: People's Procuratorate LED Electronic Display Project Inquiry Announcement Tender No.: Huicai Inquiry Purchase [2009] No. 10 Announcement Date: March 10, 2009 Deadline: March 13, 2009 Tendering Agency: Huixian City People's Procuratorate Provinces and Municipalities: Henan Province - Xinxiang City Content: Huixian Municipal Government Procurement Service Center is entrusted by the purchaser. The LED electronic display project of Huixian City People's Procuratorate is now procured by way of inquiry, and the supply of qualified conditions is welcome. The business registration is involved, and the relevant matters are announced as follows: