Introduction
The last few years has seen a greater diffusion of internet access, mailing services, video on demand and voice over IP. These new applications are characterized by a high band consumption, thus requiring a high band for user applications in premises environment. The multimode fibres are the physical medium recommended by different standards for local applications.

Lower Total System Cost
In a local network the cost of the transmitters is a substantial part of the total cost. With multimode fibres, it is possible to use low cost transceiver, such as LED's and VCSEL's.

Easy Splicing
Local networks allow many user to connect to the network simultaneously. This implies that a simple and strong connection is required. With multimode fibre it is possible to obtain easy, robust and low cost connections.

Compatibility
Multimode fibres are compatible with industry standards for fibre optics networks protocol like FDDI, Ethernet, Fast Ethernet, Token Ring and ATM.