Physical Layer
Telecommunications
See Open Systems Interconnection--Reference Model. 2. The layer (layer 1) that provides transparent transmission of a bit stream over a circuit built from some physical communications medium. [Tl.110-1987]
See Open Systems Interconnection--Reference Model. 2. The layer (layer 1) that provides transparent transmission of a bit stream over a circuit built from some physical communications medium. [Tl.110-1987]