WLAN cryptography

Security basics for wireless communication

The most important aspects of data communication are the data integrity and reliability. This mans data transfer 100 percent as desired. Data reaches the destination without any loss. The loss can be due to the data theft from hackers or intruders. One most common technique for the security of the data from adverse actions is cryptography.

GSM modem

GSM industrial Network Overview

Industrial networks can be implemented using GSM wireless technology. GSM is a well-known technology as you use it every day through you cell phones. But the use in the industrial networks is quite new. Industrial control is implemented through SMS and GSM modems. The idea of GSM industrial networks is o implement a single station without any wires for Ethernet or Telephone connections.

Industrial Wirless Network

Industrial Wireless Technology Overview

Wireless technologies are gaining as much popularity in industrial applications as in your homes, offices, or even small businesses. But the problem occurs to choose between various wireless technologies. There is not a single area of RF spectrum that you can choose for your system or product. Instead you have to select from the proprietary and standard based technologies. These technologies vary in terms of frequencies and protocols. Here are some well-known and prominent wireless technologies. These include WiFi, ZigBee, WiMAX, Cellular, and RFID.

RFI filters

RFI filter Overview

Radio frequency interference (RFI) is the noise or unwanted signal along the received or dent information. To get rid of such interference RFI filters are used. RFI filter is tuned according to the desired frequency. In other words every signal is end at a known frequency. So this frequency is given to the RFI filter. And for instance if the signal entered the RFI filter increases the particular frequency, then the increased frequency is stopped or in other words filtered out by the RFI filter.

Frequency Hopper

Security and reliability overview

Security and reliability of data are as a wireless network as for a wired network. But what we mean when we talk about the security and reliability. It means that our product and application must be protected from hackers, vendors, or competitors. About wireless networks it is essential to analyze that how many networks can be connected to our deployed protocol standard. Reliability is that the data or information transferred through radio waves must reach the destination without loss. So what is the solution?

Wireless Device Server

Introduction to wireless device server

A device server is used to control the serial data from serial interfaces such as RS 232, RS 422, and RS 485. Its usage in Ethernet frames is common. It distributes the serial information across a TCP / IP network. The major benefit of a device server is its utilization of the existing bandwidth of the existing Ethernet connections. The result is the considerable amount of serial cable savings.

Wireless Ethernet Adapter

Ethernet Overview

Ethernet is the most commonly used industrial protocol. The main reason behind is its numbers of advantages. You can find Ethernet components easily at low cost. PLC (programmable logic controller), the main component of industrial networks, uses a separate protocol. Ethernet offers communication independent of the protocol for the PLCs. Ethernet carries the Modbus or Profibus, the common communication protocols of PLC, information into the TCP / IP packets.

Wireless Internet USB AdapterInternet is a readily available source of information. But this is not only reason that Internet has become the part of almost every network these days. Apart from information using Internet instead of other sources is quite effective as well. So if we talk about wireless communication then it’ll be unfair not mentioning the wireless Internet. But first you must have some understanding of VPN.

Embedded wireless antenna

Antenna Overview

The must and most important part of a wireless system is antenna. Antennas are specifically used at receivers and transmitters. For instance an electronic embedded system supplies an AC signal to the transmitter device. Then the transmitter device converts AC signal according to its specifications. Such as an RF transmitter converts the Ac signal to RF signal, feed to the RF antenna, which is transmitted to the destination RF receiver. At RF receiver opposite case occurs.

industrial bluetooth

Bluetooth and Industrial Networks

Industrial networks are based on plenty of devices. Generally these devices are common in an industrial network: data collection units, sensors, single loop controllers, programmable logic controllers, supervisory controls such as SCADA or data acquisition systems, and interfaces such as serial interface or modem connections.