leased wire circuit
1Optical ground wire — An optical ground wire (also known as an OPGW or, in the IEEE standard, an optical fiber composite overhead ground wire) is a type of cable that is used in the construction of electric power transmission and distribution lines. Such cable… …
2Optical fiber composite overhead ground wire — (OPGW) is a type of cable that is used in the construction of electric power transmission and distribution lines. Such cable combines the functions of grounding and communications. An OPGW cable contains a tubular structure with one or more… …
3Alarm circuit — An alarm circuit (also dry pair or dry loop) is an unconditioned leased pair of telephone wire from a telco. The pair does not have a dial tone or battery (continuous electric potential), as opposed to a wet pair (a line usually with no dial tone …
4ITU-T V-Series Recommendations — V90 redirects here. For the automobile, see Volvo V90. The ITU T V Series Recommendations on Data communication over the telephone network specify the protocols that govern approved modem communication standards and interfaces.cite web… …
5Teleprinter — A teleprinter (teletypewriter, Teletype or TTY for TeleTYpe/TeleTYpewriter) is a now largely obsolete electro mechanical typewriter which can be used to communicate typed messages from point to point and point to multipoint over a variety of… …
6Telephone — The telephone (from the el. τῆλε, tēle , far and φωνή, phōnē , voice ) is a telecommunications device that is used to transmit and receive sound (most commonly speech), usually two people conversing but occasionally three or more. It is one of… …
7Current loop — This article is about the electrical signaling schemes. For the oceanic phenomenon, see Loop current. A current loop describes two different electrical signalling schemes. Contents 1 Digital 2 Analog 3 Process control use …
8Wide area network — (WAN) is a computer network that covers a broad area (i.e., any network whose communications links cross metropolitan, regional, or national boundaries cite book last =Groth first = David authorlink = coauthors = Toby Skandier title = Network+… …
9History of the telephone — The history of the telephone chronicles the development of electrical technology that enabled bidirectional human speech conversations over distances farther than a person could shout.Telephone prehistoryMechanical devicesBefore the invention of… …
10Dish Network — Corporation Type Public Traded as NASDAQ: DISH …
