DTU is a wireless terminal device that uses the operator's 2G/3G/4G network to convert serial data into IP data or convert IP data into serial data. The following is an introduction to the rankings of DTU application fields.

NB-IoT technology has four major advantages:One is: wide coverage, the coverage of NB-IoT is 20 db better than the traditional GSM network, and one base station can provide 10 times the area coverage;

Narrow Band Internet of Things (NB-IoT) has become an important branch of the Internet of Everything. NB-IoT is widely popular for its strong coverage and long communication distance. So how big is NB-IoT's coverage and how to measure its coverage

As a communication technology in the IOT field, NB-IOT has also brought many benefits to many industries. It is widely used and has many advantages. It is really a good helper for the network layer of the Internet of Things.

With the ability to support massive connections, one NB-IoT sector can support 100,000 connections, supporting low latency sensitivity, ultra-low equipment cost, low equipment power consumption and optimized network architecture.

In the field of the Internet of Things, there are various communication technologies at the same time. Divided according to the dimension of transmission distance, in the field of local area wireless network, there are BLE, WIFI, Zigbee, sub1G, etc., which are widely used in wearable, home, enterprise and other scenarios; for wide area wireless network, there are special applications for low speed···

In the current context of the Internet of Things, NB-IoT and LoRa are highly complementary, but in projects that require industry and enterprise-level private networks, the NB-IoT private network solution is obviously comparable to other technologies such as LoRa, Weightless, and ZETA. alternative relationship.

LoRaWAN is a typical representative of LPWA networks. It uses a spread spectrum modulation technology called LoRa, which is characterized by a very high link budget and can achieve up to 10 kilometers of coverage through a single gateway.

Advantages and disadvantages of zigbee protocol and main application areas of zigbee，Mainly used for short-range wireless connections. It has its own protocol standard that coordinates communication among thousands of tiny sensors.

The difference between 4G LTE gateway and CPE,4G CPE is an LTE data terminal device that converts high-speed 4G signals into WiFi signals, which can support a large number of mobile terminal access. 4G CPE can be widely used in wireless network access in rural areas, towns, hospitals, units, factories, communities, etc., which can save the cost of laying wired networks.