Communication is critical to business, our solutions provide our customers with efficient, fast and a reliable means to multitasking communication. Our new range of scalable IP based communication solutions enhance productivity and efficiency and the ability to interface with security, alarm and building management systems.
Our Integrated communication solutions meet their requirement in Building & Site Security, Airports, Parking, Prisons & Correctional facilities, HealthCare, Roads, Bridges and Tunnels , Industrial Sites and Educational Facilities.
Once you begin using wireless data, you’ll wonder how you ever lived without it. Wireless data gives you the freedom to work from almost anywhere and gives you access to personal information when you are on the go. Whether the wireless system is accessing e-mail from an airport or receiving dispatch instructions as a taxi driver, you’ll find it extremely effective to be able to maintain a data connection with a remote network from almost anywhere.
Radio communications has been with us for a long time, with analog voice as the principal application. Today, tens of millions of people in the United States are using two-way radio for point-to-point or point-to-multipoint voice communications. Although engineers have known for some time how to modulate a radio signal to send binary data, only recently have they been able to develop and deploy wireless data services on a large commercial scale.
The benefits of wireless include connections when no others are possible, connections at lower cost in many scenarios, faster connections, backups to landlines, networks that are much faster to install and data connections for mobile users. That last benefit is the focus of this chapter.
In this chapter, we’ll concentrate on wide-area wireless data; a future chapter will discuss wireless LANs. The types of WANs we will examine include cellular-based systems, paging networks and dedicated wireless WANs, such as CDPD, Metricom’s Ricochet, ARDIS and RAM Mobile Data.
Our planning and process that highlights the key issues in working with wireless data. From there we drill into the technology, including protocols and interfaces, hardware, middleware. Next we survey the various wireless networks. We conclude with some pointers for integrating your wireless solution.
One important distinction in the uses wireless data is between vertical market applications and horizontal market applications. In vertical markets, applications addresses a very specific business need for a particular company or industry. The applications provides a clear benefit through higher productivity or other competitive advantage. Today most wireless applications are in the vertical arena. But wireless vendors strongly desire to address much larger horizontal markets where a broad spectrum of business users and consumers will l use wireless communications. This transition will occur once wireless communications is inexpensive enough, broadly deployed and easy to use and once a large number of off-the-shelf applications are available. We are rapidly approaching this stage.
Free Space Optical Systems
A Free Space Optical system is a point-to-point, infrared, wireless laser transmission designed for the interconnection of two points which have a direct line of sight. The systems operate by taking a standard data or telecommunications signal, converting it into a digital format and transmitting it through free space. The carrier used for the transmission of this signal is Infra red light and is generated by either high power LED or low power laser diode(s).
The basic principles for the transmission of a signal along a fibre are the same as for transmission through free space.
The easiest way to visualise the communications service FSO is to imagine two points interconnected with optical fibre except rather than fibre the connectivity is provided by FSO