2012年7月17日星期二

What is Wireless 3G Modem and 4G Modem?

Definitions of 3G modem and 4G modem.

3G Modem:
A 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:
A 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.

2012年1月26日星期四

What can a Wireless Industrial Ethernet Router do?

Industrial Ethernet Router is a router in industrial class, with Ethernet port for industrial applications. Normally wireless industrial Ethernet router work on GSM/CDMA or 3G networks, detailed on GPRS/EDGE/CDMA/EVDO/HSDPA/HSUPA/HSPA networks for data transmission.
The E-Lins H685d industrial umts router is a single port Ethernet router that utilizes the speed of HSDPA technology. This low cost 3G unit delivers the power and innovation your business requires. Robust and reliable, the, 3G H685 is the ideal communication solution for all your wireless Telemetry needs.
  • M2M applications
  • Vehicle tracking and management
  • Automated Remote Meter Reading
  • Security systems
  • Agricultural Industry
  • VOIP communications
  • Remote Data Monitor and Control
  • CCTV, security surveillance
  • Water, gas and oil flow metering and schedule
  • AMR (automatic meter reading)
  • Power station monitoring and control
  • Remote POS (point of sale) terminals, ATM,
  • Traffic signals monitor and control, Traffic info guidance
  • Oil field, weather forecast, environmental protection, street lamp monitoring and control
  • Early Warning of Mountain Torrent
  • Fleet management
  • Power distribution network supervision
  • Central heating system supervision
  • Weather station data transmission
  • Hydrologic data acquisition
  • Vending machine
  • Telemetry, SCADA
  • Vehicle logistics and diagnostics controlling
  • Parking meter and Taxi Monitor
  • Telecom equipment supervision (Mobile base station, microwave or optical relay station)
Industrial router can work on hard circumstance and environment, high temperature, dusty, humity, and other complex area. We can mainly call it as wireless M2M application short for machine-to-machine. The router is connected to the machine, and remotely does transmission to another machine or data management centre.
H685d hsdpa router is with 7.2Mbps speed maximum, and can be easily upgraded to HSPA Router for 14.4Mbps or even higher speed.

Difference of Cellular Router and Modem


What is Cellular Router?

A cellular router is short for cell router, is a router provides shared Internet access by incorporating a cellular data modem and providing common interfaces like Ethernet and WiFi. Different cellular routers work on different networks.

Cellular network are divided into GSM cellular, CDMA cellular and3Gcellular, meanwhile, there are GSM router, CDMA Router and 3G Router.

They can be deployed as a primary WAN link to a location where wired connections are not cost-effective, can also be used as a secondary or business continuity plan should the primary cabled link fail, or can be used in moving vehicles to provide Internet access while in motion. Cellular routers range from simpleSOHOnetwork oriented devices through rugged industrial units with advanced features.

For SOHO and high data requirement,3G Router are the best to use. For small data package transmission, GSM router and CDMA router are enough.

EVDO Router, HSDPA Router, HSUPA Router and HSPA Router are hot used in many different areas such as coffee shop, small shop, home, airport, etc.

What is Cellular Modem?

A cellular modem is a modem provides internet access by the cellular networks on GPRS/EDGE/HSDPA/HSUPA/HSPA or CDMA/EVDO networks. 3g usb stick is widely used for people’s internet.

Cellular modem provides a USB port or RS232 port. USB port is for high speed data transmission. RS232 port normally is for industrial application for SMS and small package data transmission.

Router support route features, we can think it built-in modem. Modem is a simple dialing device.

Cellular Router contains Industrial Ethernet Router and SOHO Router.

Cellular Modem contains Industrial Modem and SOHO Modem.