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101Программируемое реле — Программируемое (интеллектуальное) реле  разновидность программируемых логических контроллеров (ПЛК). Обычно программа создается на языке релейной логики (LD) или FBD при помощи компьютера или при помощи клавиш на лицевой панели ПЛК.… …
102TIA/EIA-568-B — набор из трёх телекоммуникационных стандартов, выпущенных Ассоциацией телекоммуникационной промышленности США в 2001 году, который заменил собой устаревший стандарт TIA/EIA 568 А. Эти стандарты описывают построение телекоммуникационных… …
103Fiber media converter — Fiber media converters are simple networking devices that make it possible to connect two dissimilar media types such as twisted pair with fiber optic cabling. They were introduced to the industry nearly two decades ago, and are important in… …
104Ternary signal — In telecommunication, a ternary signal is a signal that can assume, at any given instant, one of three significant conditions, such as power level, phase position, pulse duration, or frequency. Note: Examples of ternary signals are (a) a pulse… …
105Physical 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… …
106Twisted pair — 25 pair color code Chart Twisted pair cabling is a type of wiring in which two conductors (the forward and return conductors of a single circuit) are twisted together for the purposes of canceling out electromagnetic interference (EMI) from… …
107Power over Ethernet — or PoE technology describes a system to transfer electrical power, along with data, to remote devices over standard twisted pair cable in an Ethernet network. This technology is useful for powering IP telephones, wireless LAN access points,… …
108MLT-3 encoding — (Multi Level Transmit) is a line code (a signaling method used in a telecommunication system for transmission purposes) that uses three voltage levels. An MLT 3 interface emits less electromagnetic interference and requires less bandwidth than… …
1094B5B — In telecommunication, 4B5B is a form of data communications line code. 4B5B works by mapping groups of four bits onto groups of 5 bits. This is done as the transitions provide clocking information for the signal. For example, a run of 4 bits such …
110Ethernet hub — 4 port Ethernet hub An Ethernet hub, active hub, network hub, repeater hub or hub is a device for connecting multiple Ethernet devices together and making them act as a single network segment. A hub works at the physical layer (layer 1) of the… …
