Gen 2

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Gen 2

(1) (GENeration 2) The second version of a product.

(2) The second generation air interface for communication between an RFID reader and tag, administered by GS1 EPCglobal (www.gs1.org). It deals with the modulation scheme, packet structure, command language and methods for dealing with collision.

Ratified in 2005, Gen 2 was a major enhancement that standardized on a single data link protocol and included support for worldwide spectrum regulations. It added read/write and tag disable functions, interoperability between devices and the ability for readers to work in close proximity to each other. See RFID and EPC.

Classes
Tags were given class numbers before Gen 2 was introduced and before the term Gen 1 was coined to refer to the earlier tags and protocols. Although Gen 1 tags are expected to fade into history, there were numerous articles written that mention them. Following is an approximate summary.
        TagGen 1   Type  Bits  Features

 Class 0  P   64-96  Read only, Locked*
                      security tag

 Class 0+ P   64-96  R/W and WORM

 Class 1  P   64-96


 Gen 2 (All classes can be locked) 

 Class 1  P   96-496  Commonly used

 Class 2  P   96-496  Authentication

 Class 3  SP  96-496  Integrated sensing

 Class 4  A   96-496  Ad hoc networking

 P=passive;  SP=semi-passive;  A=active
 RO=read only;  R/W=rewritable
 WORM=write once read many
References in periodicals archive ?
Otis has introduced its latest connected Gen2 Life elevator and the expanded Otis SkyRise product family in the Middle East.
Otis, a manufacturer of elevators, escalators, and travellators, has introduced new products and service to the Middle East, including the connected Gen2 Life elevator and the expanded Otis SkyRise product family.
Proton raised the price of its Gen2 and Persona model in February and March 2016.
Th new Magewell Gen2 release includes a new SDK, universal Windows and open source Linux drivers.
RAIN will promote awareness, education, programs and initiatives to accelerate the growth and adoption of ISO-IEC 18000-63 / EPC Gen2 RFID in business and consumer applications worldwide.
We will install our Gen2 lifts in the Haramain high speed rail stations across Makkah, Madinah and Jeddah, high-speed lifts in the Lamar Towers in Jeddah and double-deck lifts at the King Abdullah Financial District in Riyadh," said Pulling who has worked with the Otis elevator company for 28 years.
The Gen2 Switch[TM] elevator will be available globally through Otis operating units in a phased roll-out in developed and emerging markets, including: Europe, India, South East Asia, and Central and South America.
O'Neil Construction to provide 24 Gen2 elevators and modernize 29 additional elevators at Los Angeles International Airport.
The rifle has a black Gen2 Magpul BUIS sight, black Colt Rogers Super-Stoc and a matte black finish.
com)-- Leonard Murphy, Gregg Archibald, Jason Anderson, Bill Weylock and David Bernstein, who have over 100 years of combined experience in marketing, research and insights, have announced the launch of their new firm, Gen2 Advisors.
This major partnership agreement establishes a long-term strategic relationship by which GBM will remarket, distribute, resell and support Virtual Bridges products, including Verde, the industry's first VDI Gen2 solution.
Accordingto the Placing Agreement entered with its substantial shareholder Fullink Management Limited ("Fullink"), 61,800,000 shares will be placed to not less than six professional institutional investors, including Gen2 Partners Limited ("Gen2 Partners"), as well as other investors, representing approximately 8.