Technology.

2001/05
Fahrner Group believes in radio solutions

The Fahrner group uses the same radio technology in the warehouse that is also used for networking near the site.

In all warehouses our employees use hand-held terminals based on the international 2.4 GHz standard. All information is transmitted online to our server via access points. Our qualified staff can quickly and accurately track all warehouse movements.

Cable connections are often too expensive and inflexible when networks have to be linked over large distances. Cable is often not a practical solution even in large industrial areas such as sea- and airports. Data transmission is ideal for this, where two or more Ethernet backbones can be simply connected with each other.

Our Bridges (Ethernet-Access Points) fulfil the usual network standards regarding flexibility and interoperability. High data transmission rates and secure data communication are just as important as interface standards.

Our present local area network bridges are capable of operating over distances, depending on the antenna, of up to 2,000 m.

The typical size of a radio cell amounts to 4,500 m². The omni directional range within the building amounts to about 150 m and approx. 300 m outside. The data transmission system consists mainly of the mobile data radio terminals, the access points and the gateway software on the host.

For the data radio terminals, it is the rugged mobile devices, integrated via a radio interface, which communicate with the access points. The integrated Spread-Spectrum radio interface allows transfer rates of up to 11 Mbps.

Within radio range, answer times of less than one half second are guaranteed. The Ethernet-Access Points (Bridges) are the transition from the radio network to the cabled Ethernet. It uses frequencies in the 2.4 GHz range and supports roaming. By roaming the user can freely and without interruption move with his data radio terminals from one access point to another. The following operating systems are supported:

NT,HP-UX,NCR Unix, SCO Unix, AIX, Solaris and Unixware.