The transmission line running between telephone switching offices.
line that is the main route on a railway
a telephone line connecting two exchanges directly
a communications path between two switching systems, such as equipment in a telephone company central office and a Private Branch Exchange (PBX)
These are the ultrahigh-capacity lines that form the backbone of the telecoms system, connecting together the major centres of communication, nationwide. Close this window
A communications line connecting two Frame Relay switches to each other.
The major distribution cable used in CATV. It divides into feeder lines which are tapped for service to subscribers.
A major electronic communications line, usually made up of a bundle of cables.
A communication line between 2 switching systems. For example, the communications channel between the Central Office (CO) and a Private Branch Exchange (PBX) switch, or the channel between a Local Area Network (LAN) and a T1 carrier line.
A transmission line running between telephone switching offices.