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Viavi Solutions Inc. (stylized VIAVI Solutions), formerly part of JDS Uniphase Corporation (JDSU), is an American network test, measurement and assurance technology company based in Chandler, Arizona. The company manufactures testing and monitoring equipment for networks.
On August 3, 2005, the company acquired test and measurement equipment company Acterna for $760 million, which became part of JDSU's Test and Measurement Group. [12] Acterna had been formed by the May 2000 merger of network test solutions developer Wavetek Wandel Goltermann (WWG) and hand-held test equipment developer TTC.
In March 2018, Viavi Solutions purchased Cobham AvComm and Wireless Test and Measurement, which were previously part of Aeroflex, for $455 million. These business units will continue using the name Aeroflex until March 2021. [17] [18]
Keysight Technologies, Inc. is an American company that manufactures electronics test and measurement equipment and software. The name is a blend of key and insight. [2] [4] The company was formed as a spin-off of Agilent Technologies, which inherited and rebranded the test and measurement product lines developed and produced from the late 1960s to the turn of the millennium by Hewlett-Packard ...
A typical lineman's handset integrates an earpiece, a mouthpiece, a dialing interface, and a set of test leads for connecting to the telephone circuit. Originally, lineman's handsets featured a rotary dial , but modern sets use some variant of the standard 12-button DTMF keypad and also employ an amplifier for speaker use.
Ixia announced test equipment in November 2008. [34] [35] Discovery Semiconductors introduced optoelectronics converters for 100 Gbit/s testing of the 10 km and 40 km Ethernet standards in February 2009. [36] JDS Uniphase (now VIAVI Solutions) introduced test and measurement products for 40 and 100 Gbit/s Ethernet in August 2009. [37]
In multimode fibre optics, mandrel wrapping is a technique used to preferentially attenuate high-order mode power of a propagating optical signal. Consequently, if the fibre is propagating substantial energy in affected modes, the modal distribution will be changed.
Society of Automotive Engineers standard SAE J1939 is the vehicle bus recommended practice used for communication and diagnostics among vehicle components. Originating in the car and heavy-duty truck industry in the United States, it is now widely used in other parts of the world.
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