(optical fiber connector)
71Ethernet over twisted pair — cable (upper) and 8P8C plug (lower) Ethernet over twisted pair technologies use twisted pair cables for the physical layer of an Ethernet computer network. Other Ethernet cable standards employ coaxial cable or optical fiber. Early versions… …
72Reference surface — In fiber optic technology, a reference surface is that surface of an optical fiber that is used to contact the transverse alignment elements of a component such as a connector or mechanical splice. For telecommunications grade fibers, the… …
73Telephone switchboard — PBX switchboard, 1975 A switchboard (also called a manual exchange) was a device used to connect a group of telephones manually to one another or to an outside connection, within and between telephone exchanges or private branch exchanges (PBXs) …
74Time-domain reflectometer — A time domain reflectometer (TDR) is an electronic instrument used to characterize and locate faults in metallic cables (for example, twisted wire pairs, coaxial cables). The equivalent device for optical fiber is an optical time domain… …
75T-Mobile — International AG Type Private (subsidiary of Deutsche Telekom AG) Industry Telecommunications Founded 1990 …
76Mobile radio — This article is about professional equipment. For mobile radios used in amateur radio, see amateur radio mobile operation. Mobile radio or mobiles refer to wireless communications systems and devices which are based on radio frequencies, and… …
77Physical Layer — NOTOC The Physical Layer is the first level in the seven layer OSI model of computer networking. It translates communications requests from the Data Link Layer into hardware specific operations to affect transmission or reception of electronic… …
78Loopback — The term loopback (sometimes spelled loop back ) is generally used to describe methods or procedures of routing electronic signals, digital data streams, or other flows of items, from their originating facility quickly back to the same source… …
79Digital video recorder — Foxtel iQ, a combined digital video recorder and satellite receiver. V+, a combined digital vid …
80AV receiver — AV receivers or audio video receivers are one of the many consumer electronics components typically found within a home theatre system. Their primary purpose is to amplify sound from a multitude of possible audio sources as well as route video… …
