ISO/IEC was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 17, Cards and personal identification. ISO/IEC , is an ISO standard for vicinity cards, i.e. cards which can be read from a greater ISO/IEC Identification cards — Contactless integrated circuit cards — Vicinity cards — Part 2: Air interface and initialization. ISO/IEC (E). PDF disclaimer. This PDF file may contain embedded typefaces. In accordance with Adobe’s licensing policy, this file.
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A vicinity card only responds when it receives a valid command that selects a single card from a possible collection of cards within range of the coupler.
Life cycle A standard is reviewed every 5 years 00 Preliminary. This allows the card to draw the maximum energy from the field almost continuously. This article relies too much on references to primary sources. Retrieved from ” https: Air interface and initialization. From Wikipedia, the free encyclopedia.
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Check out our FAQs. This page was last edited on 22 Novemberat Thus both power and bi-directional communications form the air interface between the vicinity card and the coupler.
In 156932, the card can be attached to objects like bags and valuable items which can then be tracked whilst in the vicinity of a reading device.
Such cards can normally be read out by a reader without being powered themselves, as the reader will supply the necessary power to the card over the air wireless. Therefore this version remains current. The data rate can be:. These are switched on and off to provide Manchester-encoded data that are then detected by the coupler.
ISO/IEC – Wikipedia
Power is coupled to the vicinity card by an a. A logic 0 starts with eight pulses of This process of collision detection and selection, also known as anti-collision, is made possible by detecting the unique identification number encoded into every card. April Learn how and when to remove this template message.
Final text received or FDIS registered for formal approval. The data frame delimitors are code violations, a start of frame is:.
The ios are sent using a Manchester code. The card can be carried by members of the public in a purse or wallet and when presented nearby a terminal device give access to 51693-2, goods or services.
List of International Electrotechnical Commission standards. Vicinity cards, which have no power source, can be energized at ranges of up to 1 m from a coupler that can only transmit power within the limits permitted by international radio frequency RF regulations. Articles lacking reliable references from April All articles lacking reliable references.
ISO standards by standard number. Proof sent to secretariat or FDIS is initiated: It is the flexibility of the interface to select one or two sub-carriers when communicating from card to coupler, whilst also using slow or fast data rates from the coupler to the card, that allows systems to be tuned to suit different operational requirements ranging from use with high RF noise at short range to low RF noise at long range.
Monday to Friday – Frequency-shift keying by switching between a As the vicinity cards have to operate at a greater distance, the necessary magnetic field is less 0. When sufficient power is received by the card, it is izo to respond to commands sent from the coupler.
The coupler sends commands to the card by modulating the powering field and by using a modulation system known as pulse position modulation, whereby the position of a single pulse relative to a known reference point codes the value of a nibble or byte of data.