Definitions of 3G modem and 4G modem

What is 3G modem and 4G modem?

Here we definitions of 3G modem and 4G modem.

3G Modem:

3G modem is a terminal device for dialup. Also known as a Cellular Modem, Mobile Modem, Mobile IP Modem, Wireless Modem) A wireless adapter that connects a laptop computer or other device to a cellular telephone system for data transfer. Cellular modems, often contain their own antennas and plug into a PC Card slot, a serial port or into the USB port of the computer or other device. Cellular modems can operate on a variety of wireless data services such as GPRS, EDGE, UMTS, HSPDA, HSPUA, 1x and EV-DO.

4G Modem:

4G modem is from tourth generation mobile communications technology. A somewhat vague term used to describe wireless mobile radio technologies that offer faster data rates than current 3G (third generation) technologies. 4G networks are also more data-centric and based on standard Internet technologies such as IP. Voice service is typically provided using a special form of VoIP. WiMAX and LTE are examples of 4G technologies. 4G LTE is most popular with 4G TDD LTE and FDD LTE.

Wireless M2M for Video Monitor

Cellular router and modem is widely used in different field for non-industrial internet data connection and industrial application with wireless M2M solutions.
Cellular router and modem provides RJ45 port and RS232 or USB communication port, connecting to the remote device, build the internet connection for remote control management.

Nowadays more and more locations require security monitor. So the CCTV video and surveillance devices are applied in many areas. Usually there are live video surveillance and mode and capture picture mode.

To build the wireless M2M solution for the video or picture monitor, the E-Lins 3G wireless router can take the job.
So at this solution, the 3G wireless router is a device of wireless data transmitter

To transmit the capture pictures, the GPRS/EDGE/CDMA network will work well, for example, we can use E-Lins GPRS Router or EDGE Router or CDMA Router to build a wireless network channel to send the data picture to the monitor centers.
But it requires large bands to transmit the live video as the data is huge. So E-Lins 3G HSDPA Router and 3G HSDPA Modem will take the work.

The 3G Wireless Modem is connected to the USB ports of the monitor cameras, and the 3G Wireless Router is connected to the RJ45 ethernet port of the machines to build the less expensive, flexible, reliable, safe system.

Typical Picture for Wireless M2M Solutionn in CCTV Surveillance

1. Typical Diagram

Actually, live video monitor and capture monitor is just a part of wireless m2m solutions. Cellular router and modem are widely used in other areas such as coal mine, light supervise, remote LED system, AMR, etc.

Originated from zouyanbing by blog of Cellular Mobile Router and Modem