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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The data rate can be:. 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 is 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. The data are sent using a Manchester code.
ISO/IEC – Wikipedia
These are switched on and off to provide Manchester-encoded data that are then detected by the coupler. Retrieved from ” https: Please improve this by adding secondary or tertiary sources. This page was last edited on 22 Novemberat Check out our FAQs. Therefore 51693-2 version remains current. Power is coupled to the vicinity card by an a. Frequency-shift keying by switching between a This allows the card to draw the maximum energy from the field almost continuously.
Views Read Edit View history. 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. April Learn how sio when to remove this template message.
A logic 0 starts with eight pulses of The first byte of the UID should always be 0xE0. 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 places, goods or services.
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The data frame delimitors are code violations, a start of frame is:. In addition, the card can be attached to objects like bags ieo valuable items which can then be tracked whilst in the vicinity of a reading device.
Thus both power and bi-directional communications form the air interface between the vicinity card and the coupler. Such cards can normally be read out by a reader without being powered 156693-2, as the reader will supply the necessary power to the card over the air wireless. This article relies too much on references to primary sources.
This process of collision detection and selection, also known as anti-collision, is made possible by detecting the unique 51693-2 number encoded into every card.
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.
Air interface and initialization.
List of International Electrotechnical Commission standards. The card responds to the coupler by drawing more or less power from the field and generates one or two sub-carriers of around kHz. Proof sent to secretariat or FDIS ballot initiated: ISO standards by standard number. 1563-2 to Friday – 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. When sufficient power is received by the card, it is able to respond to commands sent from the coupler.