FIBRE LEASE LINES
Fibre leased lines are used by businesses to connect geographically distant offices. Unlike dial-up connections a leased line is always active. The fee for the connection is a fixed monthly rate. The primary factors affecting the monthly fee are distance between end points and the speed of the circuit. Because the connection is not shared with anyone else, and only carries communications between the offices, the carrier can ensure a level of quality and security across the circuit.
The ‘pipe’ that carries the data on the circuit is called the bearer. There are typically three fibre bearer speeds; 10Mbps, 100Mbps and 1000Mbps. The Committed information rate(CIR) can be varied for each bearer. For example 20/100Mbs, 30/100Mbs, 100/1000Mbs, 200/1000Mbs and so on. The bigger the bearer, the higher the speed that can be achieved.