Class 1 Generation 2 UHF Air Interface Protocol Standard "Gen 2"
Commonly known as the "Gen 2" standard, this standard defines the physical and logical requirements for a passive-backscatter, Interrogator-talks-first (ITF), radio-frequency identification (RFID) system operating in the 860 MHz - 960 MHz frequency range. The system comprises Interrogators (also known as Readers), and Tags (also known as Labels).
The UHF Class-1 Generation-2 air interface protocol V1.2.0 extends the item-level tagging capabilities of UHF Gen 2. In this protocol, 3 optional features have been added. An indicator is now available to show when there is formatted data in user memory. Addition of permalocking on a block level in user memory now protects contents that have already been written. Recommissioning of a tag after POS operations is now available. The recommissioned action is indicated through the inclusion of extended protocol control bits.
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