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The advantage of using wireless data transmission module... Data transmission can be simply divided into two major types: wired (including the installation of optical cables, cables or leased telecommunication lines) and wireless (including the establishment of dedicated wireless data transmission system or the borrowing of CDPD, GSM, CDMA and other public network information platforms).     In...

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Industrial-grade 4G router TCP/IP network architecture 1. Layering of TCP/IP network system   TCP/IP (TransmissionControlProtocol/InternetProtocol), transmission control protocol/Internet protocol. It was developed by the defense advanced research projects agency in the 1970s, and was later integrated into UNIX and popularized. It emerged in the 1980s as the Internet's...

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The structure of 4G DTU The main function of DTU is to transmit data from remote devices back to the background center via wired/wireless. Different data transmission modes of DTU include all-network-connected DTU, GPRS DTU, WIFI DTU, CAN DTU and 4G DTU. Today, we will have a look at the structure and work flow of DTU.   To complete...

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What are the wireless connection technologies of the... Internet of things (iot) applications have been deeply rooted in our lives. The E-Lins H685 industrial-grade router is a small industrial-grade wireless router with single or double LAN ports. TDD/ fdd-lte, 4G, 3G, GPRS network optional. Besides, what are the wireless connectivity technologies for the Internet of things?   1....

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The use of industrial wireless routers Industrial-grade wireless router adopts high performance 32-bit industrial-grade ARM9 communication processor, which is widely used in finance, electric power, postal, water conservancy, environmental protection, meteorology and other industries.   Industrial router is mainly used in intelligent transportation,...

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A Brief Introduction of US largest Operator Verizon

文章目录 : 其他, 技术相关

Verizon Communications, Inc. (simply known as Verizon), is a broadband telecommunications company and the largest U.S. wireless communications service provider as of September 2014, and a corporate component of the Dow Jones Industrial Average. The company is based at 1095 Avenue of the Americas in Midtown Manhattan, New York City, but is incorporated in Delaware.

 

What eventually became Verizon was founded as Bell Atlantic, which was one of the seven Baby Bells that were formed after AT&T Corporation was forced to relinquish its control of the Bell System by order of the Justice Department of the United States. Bell Atlantic came into existence in 1984 with a footprint from New Jersey to Virginia, with each area having a separate operating company (consisting of New Jersey Bell, Bell of Pennsylvania, Diamond State Telephone, and C&P Telephone).

 

As part of the rebranding that the Baby Bells took in the mid-1990s, all of the operating companies assumed the Bell Atlantic name. In 1997, Bell Atlantic expanded into New York and the New England states by merging with fellow Baby Bell NYNEX. In addition, Bell Atlantic moved their headquarters from Philadelphia into the old NYNEX headquarters and rebranded the entire company as Bell Atlantic.

 

In 2000, Bell Atlantic merged with GTE, which operated telecommunications companies across most of the rest of the country that was not already in Bell Atlantic’s footprint. Bell Atlantic, the surviving company, changed its name to “Verizon”, a portmanteau of veritas (Latin for “truth”) and horizon.

 

As of 2016, Verizon is one of three companies that had their roots in the former Baby Bells. The other two, like Verizon, exist as a result of mergers among fellow former Baby Bell members. One, SBC Communications, bought out its former parent AT&T Corporation and assumed the AT&T name. The other, CenturyLink, was formed initially in 2011 by the acquisition of Qwest (formerly named US West).

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