Showing posts with label router. Show all posts
Showing posts with label router. Show all posts

Sunday, 2 January 2011

Wireless Router

Wireless router is very important for personal network living.

From technology, Wireless router is mainly classified in wireless wifi router, wireless wimax router, and wireless cell router.
From used filed, wireless router is classified soho (also called in non-industrial) class, and industrial class for Industrial Ethernet Router.
SOHO is for large data use, for example 3G router (including EVDO Router, HSDPA Router, and HSUPA Router, and HSPA Router.)

A wireless router is a device that performs the functions of a router but also includes the functions of a wireless access point and a network switch. They are commonly used to allow access to the Internet or a computer network without the need for a cabled connection. It can function in a wired LAN (local area network), a wireless only LAN (WLAN), or a mixed wired/wireless network. Most current wireless routers have the following characteristics:

1. LAN RJ45 ports, normally 1 or 2 or 4 ports, which function in the same manner as the ports of a network switch
2.      A WAN port, normally 1 RJ45 port to connect to a wide area network, typically one with Internet access. External destinations are accessed using this port. If it is not used, many functions of the router will be bypassed.
3.      Wireless antennae. These allow connections from other wireless devices (NICs (network interface cards), wireless repeaters, wireless access points, and wireless bridges, for example), usually using the Wi-Fi standard.
4.      Some wireless routers also include a DSL or cable modem in addition to their other components.

As for the wireless antenna, contains GSM/3G cellular antenna and WiFi/Wimax antenna, with different connecting type, such as SMA. Normally antenna is default packed by manufacturer. High gain antenna is available for replacement to receive better and stronger signal so as to get good receiving and transmission of data.

Tuesday, 28 December 2010

Cellular Router and Modem Difference

Cellular RouterA cellular router 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 and 3G cellular, 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 simple SOHO network 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.

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.
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 supports 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.

Saturday, 25 December 2010

3G USB Router Feature

1. Spec

Connectivity and Data Speed
1.       UMTS Band: Tri-band HSUPA 850/1900/2100MHz
2.       HSPA/WCDMA Data Rate: 7.2Mbps downlink and 5.76Mpbs uplink 4.       WLAN: 802.11b/g/n
3.       EDGE quad-band: 850/900/1800/1900MHz for 236.8Kbps downlink
5.       LAN: Eternet 10/100Mbps
6.       PSTN Phone: RJ11
Functions
1.       Support PSTN Phone
2.       Wireless: WPA2-PSK, WPA-PSK, WEP AP Isolation, MBSSID AP Isolation WDS: Lazy, Bridge, Repeater
3.       Firewall: SPI, DoS, Mac/IP/Port Filter, Port Forwarding,DMZ, Web content Filter, Web URL filter, Web host Filter
4.       VPN: VPN pass-through fo IPSEC, PPTP, L2TP
5.       Other: Static routing, QoS, DDNS, DHCP Server/Client, NTP

Form Factor
1.       WiFi: 802.11b/g/n
2.       Modem: Embedded, HSDPA

Antenna:
1.       WiFi/HSDPA Main Antenna: Embedded
2.       HSUPA Rx Diversity Antenna: Embedded
3.       3G External Antenna port: Optional

Language Supported
English, Chinese

2. Feature
3G+ Data & Voice Wireless-N Broadband Router Perfect for High-speed Wireless-N router at home or SOHO, Quick and cost-effective substitue in palce of XDSL/Cabel line
1. Fast speed Wireless-N 802.11b/g/n
2. 3G Mobile Broadband to Wireless(Buitl-in HSDPA module)
3. Call by PSTN Phone

Thursday, 23 December 2010

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.