tag class
An enclosure that totally or partially surrounds an item in order to reduce its emitted noise.
An electromagnetic transducer that is a physical object made of conducting material which is capable of radiating or receiving electromagnetic waves.
An attenuator is a telecommunication device that reduces the amplitude of a signal without appreciably distorting its waveform. Attenuators are usually passive devices. The degree of attenuation may be fixed, continuously adjustable, or incrementally adjustable.
An automatic tracking system used on ships and by vessel traffic services (VTS) for identifying and locating vessels.
A viewing / mounting portal designed specifically for the use of CCTV in hazardous areas. Built to allow for full camera rotation.
Closed-Circuit TeleVision Camera capable of acquiring and delivering to a recording device full-motion video.
A timepiece for the measurement of time.
An instrument that indicates either a) magnetic bearings by alignment of its needle on the magnetic poles, or b) reference bearing by radio signal, or c) change of orientation in relation to a gyromaintained line.
A physical object that can store data and program(s) that operates on the data. A general purpose computer can be programmed to solve any reasonable problem expressed in logical and arithmetical terms.
A device used to translate print media into computer language so that a document can be viewed and read later on.
A radio beacon in the mobile service the emissions of which are intended to facilitate search and rescue operations (EPIRB).
Machine capable of transmitting written input via telephone lines.
An electromagnetic storage device, continuously available within a computer system.
Is a communication system.
A control panel with an array of systematically arranged (piano like) keys by which a machine is operated or by which an instrument can be played on.
A data communication system intended for communication between parties in a restricted area.
An electroacoustic transducer that converts an electric signal into sound.
An 'equipment class' that is a class of devices engaged in meteorological observations.
A microphone, sometimes called a mic (pronounced mike), is a device that converts sound into an electrical signal.
Short for modulator/demodulator. A communications device that converts one form of a signal to another that is suitable for transmission over communication circuits, typically from digital to analogue and then from analogue to digital.
Is an artefact intended for a number of input channels to share one output channel.
A very accurate flow meter used to record oil exports.
A post or buoy placed over a shoal or bank to warn vessels, also a signal mark on land.
Equipment which projects an image on a screen by passing light through a transparent slide or other transparency.
One-way communications device in which the intended receiver is alerted to receive a message or return a phone call.
A system intended to contact people through a pager. It is pre-date mobile phone technology.
A handheld or fixed device designed to identify and record the location of an object on the earth's surface. GPS, GALILEO, SYLEDIS, HYPERFIX, LORAN-C, DECCA etc. are all brands and working on different networks.
A physical object that produces characters or graphic symbols on paper or other medium.
Is a facility for measure & control, including the main plant computerized operational system, where all process, utility and off site activities are monitored. The system may be located in the main control room. (e.g. PLC Programmable logic controller, DCS distributed control system, ENMC Electrical Network Monitoring and Control system).
Is an alarm system.
A physical object for detecting the presence of objects at a distance, or ascertaining their position or motion, by transmitting short radio waves and detecting or measuring their return after being reflected.
A radio transmitter, usually non-directional, that emits identifiable signals intended for radio direction-finding.
A transceiver which has the methods of signalling through space, without connecting wires.
Is a piece of hardware intended to read and decode information encoded on a carrier.
A router is a computer networking device that forwards data packets toward their destinations through a process known as routing. Routing occurs at layer 3 (Network layer) of the OSI seven-layer model.
A system that provides voice and telefax communication via satellites.
A physical object that is capable of receiving a signal and where the signal can be stored, recorded or converted into a useful form.
A device with one input and at least two outputs used for dividing a detectable transmitted energy (as a voltage, current, or magnetic field strength) by which information can be transmitted.
A detecting instrument that is intended to measure the upload and download speed of an internet connection.
A device that transfer data between a computer and a magnetic tape.
In a communications network, a network node equipped for interfacing with another network that uses different protocols.
A physical object that converts sound signals into corresponding variations of electric current (or potential), which is transmitted by wire or radio to a distant point where it is reconverted into sound.
An 'artefact' intended for the termination of cables.
A transceiver that transmits a signal automatically in response to an appropriate triggering signal.
A means of connection for TV equipment to link to remote cameras located inside a shielded area. Also a means of inserting an inspection Camera into a viewing port to enable viewing within restricted access areas.
A signal converter intended to convert one video signal type to another video signal type.
A facility with the capability of receiving video signals and displaying pictures.
A recording instrument that is recording signals originated by a TV camera on a moving magnetic tape for subsequent reproduction or transmission.
A wireless access point (WAP) is a device that allows wired communication devices to connect to a wireless network using Wi-Fi, Bluetooth or related standards. The WAP usually connects to a router, and can relay data between the wireless devices (such as computers or printers) and wired devices on the network.