Nowadays mobile phone is one of the most common tool of communication. It uses SIM card to access internet. But have you think about can we use SIM card in a router?

The answer is Yes, but how does a SIM card router work?

4G router is based on the common wireless routing, and improves the function of 4G dialing, which can complete the function of wireless network connection.

The 4G communication module is built into the PCB board, and the data signal of the communication base station is accepted according to the inserted SIM card to connect the network. The external connection is to connect the 4G network adapter to the USB port to complete the dial-up connection, that is, to complete the sharing of resources on and off the network.

Wired router is not convenient to connect to the network cable, complete the whole batch of electronic computers on the external network effect. 4G industrial router is the industrial version of 4G router, which is basically improved. It has high reliability transmission efficiency and can adapt to the extreme outdoor natural environment in high temperature and cold.

4G wireless router is a multi-functional industrial Internet of Things terminal device, which integrates router, gateway, serial port, DIO and other functions. It supports POE power supply, IO input/output, RS232 or RS485 serial port, supports transparent-transmission and Modbus protocol, and is used to extend IO and connect to PLC and other devices. E-Lins also has router models with dual SIM card redundancy design for selection, such as H900, which can ensure stable and reliable data transmission. It supports Modbus TCP protocol and is compatible with most PLC protocols, greatly simplifying the construction cost of field wiring and reducing the cost of operation and maintenance. It is widely used in smart environmental protection, smart water conservancy, smart agriculture, smart mine, smart transportation, smart city, smart manufacturing and other industries.