telecommunication Telecommunication is the transmission of information by various types of technologies over wire, radio, optical, or other electromagnetic systems. It has its origin in the desire of humans for communication over a distance greater than that fe ...

s, the term customer office terminal has the following meanings: *1. Termination equipment that (a) is located on the customer premises and (b) performs a function that may be integrated into the

common carrier A common carrier in common law countries (corresponding to a public carrier in some civil law systems,Encyclopædia Britannica CD 2000 "Civil-law public carrier" from "carriage of goods" usually called simply a ''carrier'') is a person or compan ...

equipment. ''Note:'' An example of a customer office terminal is a stand-alone

multiplexer In electronics, a multiplexer (or mux; spelled sometimes as multiplexor), also known as a data selector, is a device that selects between several analog or digital input signals and forwards the selected input to a single output line. The sel ...

located on the customer premises. *2. The

digital loop carrier A digital loop carrier (DLC) is a system which uses digital transmission to extend the range of the local loop farther than would be possible using only twisted pair copper wires. A DLC digitizes and multiplexes the individual signals carried by t ...

(DLC) multiplexing function that is near the exchange termination (ET) when provided by a stand-alone multiplexer. ''Note:'' This function may be integrated into the ET.

References

{{FS1037C Telecommunications equipment