Fibre Access Direct fibre connection from the service provider to the client. Provision of Internet access, usually with little or even no contention. Speeds are measured mostly in sub-100Mbps range.
Dark Fibre Leasing (or a medium- to long-term basis) of dark fibre pairs to which the client connects their own optical network equipment i.e. lights the fibre. The dark fibre may be between PoPs or from PoP to an aggregation node in a given area (business park or suburb) in which many buildings are concentrated.
Ethernet Link Active network services usually contracts on a short- to medium-term basis. Bandwidths are measured in the range from 5Mbps to 1Gbps. Carrier grade equipment is used and MEF standards followed to ensure the quality of the service offered. Services are SLA based.
Fiber-optic cable that is installed, has all electronics such as transmitters and regenerators connected to it, and which carries communications traffic.