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 ( 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.

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
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References in periodicals archive ?
Not included in the diagram are the Evolution Stones and Held Items for the Gen 4 PokAaAaAeA@mon since Niantic has yet to confirm if it will contin to follow the ( main games in the future generation updates for "PokAaAaAeA@mon GO." Howeve players who stumbled upon pjpacattack's subreddit are already claiming that this is very likely due to some items that are part of the Gen 2 Update.
De posse do dendrograma (Figura 2) e da distancia media relativa (43,5%), foi determinado um ponto de corte que permitiu a formacao de oito grupos distribuidos da seguinte forma: Grupo 1 (genotipos GEN 22, GEN 24, GEN 6, GEN 4 e GEN 15), Grupo 2 (GEN 10, GEN 18, GEN 8 e GEN 17), Grupo 3 (GEN 20 e GEN 23), Grupo 4 (GEN 12, GEN 19, GEN 3 e GEN 9), Grupo 5 (GEN 16 e GEN 21), Grupo 6 (GEN 1 e GEN 13), Grupo 7 (GEN 7 e GEN 11) e Grupo 8 (GEN 2, GEN 14 e GEN 5).
Em relacao ao diametro do pseudocaule ao nivel do solo (DPNS), destacaram-se os genotipos GEN 22, GEN 19, GEN 12, GEN 13, GEN 2, GEN 18, GEN 11, GEN 3 e GEN 6, com maiores medias, que formaram um grupo diferente dos demais genotipos.
"The adoption rate of Gen 2 RFID smart labels will revolve around performance and price," says Mike Fowler, president of SATO America Inc.
Our breakthrough high-speed tag manufacturing process will enable us to meet that demand as it scales up, especially with the expected migration to Gen 2 solutions."
This Gen 2 PHY began to be called SATA II by the press in the market.
( Reddit user thepearloather  recently took the time to list and come up with a guide for Trainers who will go on a PokAaAaAeA@Hunt now th the Gen 2 Update is here.
Niantic, the company behind PokAaAaAeA@mon Go, said the PokAaAaAe Go Gen 2 release date would be this week, so we expect the Gen 2 PokAaAaAeA@m to appear in the PokAaAaAeA@mon Go update soon, but we'll keep you post until that happens.