Flashcards: Telecommunications equipment

In electrical controls, a stepping switch or uniselector (UK), also known as a stepping relay, is an electromechanical device which allows an input connection to be connected to one of a number of possible output connections, under the control of a series of electrical pulses.

The Personal Handy-phone System (PHS), also marketed as the Personal Access System (PAS) and commercially branded as Xiaolingtong (Chinese: 小灵通) in Mainland China, is a mobile network system operating in the 1880–1930 MHz frequency band, used mainly in Japan, China, Taiwan, and some other Asian countries and regions.

A telephone, or phone, is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be heard directly.

In telecommunications, squelch is a circuit function that acts to suppress the audio (or video) output of a receiver in the absence of a sufficiently strong desired input signal.

A terminal server (also referred to as a serial server or console server network access server) enables organizations to connect devices with an RS-232, RS-422 or RS-485 serial interface to a local area network (LAN).

Fax (short for facsimile), sometimes called telecopying or telefax (the latter short for telefacsimile), is the telephonic transmission of scanned printed material (both text and images), normally to a telephone number connected to a printer or other output device.

Ferrite circulators are radio frequency circulators which are composed of magnetised ferrite materials.

A digital cross-connect system (DCS or DXC) is a piece of circuit-switched network equipment, used in telecommunications networks, that allows lower-level TDM bit streams, such as DS0 bit streams, to be rearranged and interconnected among higher-level TDM signals, such as DS1 bit streams.

A transceiver is a device comprising both a transmitter and a receiver that are combined and share common circuitry or a single housing.

A pager (also known as a beeper) is a wireless telecommunications device that receives and displays numeric messages and/or receives and announces voice messages.

A submarine communications cable is a cable laid on the sea bed between land-based stations to carry telecommunication signals across stretches of ocean.

Cell Phone Signal Booster is a Houston-based venture by Accessory Fulfillment Center, LLC.

Barrett Communications is a specialist manufacturer and supplier of commercial high frequency (HF), tactical HF and very high frequency (VHF) communications equipment.

The company was founded in Melbourne in 1986.

The telex network is a switched network of teleprinters similar to a telephone network, for the purposes of sending text-based messages.

The Volta Laboratory (also known as the "Alexander Graham Bell Laboratory", the "Bell Carriage House" and the "Bell Laboratory") and the Volta Bureau were created in Georgetown, Washington, D.

WINGcon is a German company that operates in the telecommunications industry.

A master clock is a precision clock that provides timing signals to synchronise slave clocks as part of a clock network.

ALBEDO Telecom is a company that designs and manufactures products for the telecom industry including testers, synchronization nodes and networking devices.

An intercom (intercommunication device), talkback or doorphone is a stand-alone voice communications system for use within a building or small collection of buildings, functioning independently of the public telephone network (Azori 2016).

A utility pole is a column or post used to support overhead power lines and various other public utilities, such as cable, fibre optic cable, and related equipment such as transformers and street lights.

Orckit-Corrigent (NASDAQ: ORCT; TASE: ORCT) was an Israel-based global supplier of telecommunications networking equipment and products that facilitated the delivery of Carrier Ethernet and TDM migration applications for telecommunication providers around the world.

An add-drop multiplexer (ADM) is an important element of an optical fiber network.

The Hellschreiber or Feldhellschreiber (also Hell-Schreiber named after its inventor Rudolf Hell) is a facsimile-based teleprinter invented by Rudolf Hell.

Maritime Broadband INC is a US engineering company providing VSAT communication systems for maritime use.

SAF Tehnika (Nasdaq Baltic: SAF1R) is a designer, producer and distributor of digital Microwave Data transmission equipment.