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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Monday to Friday – This article relies too much on references to primary sources. This page was last edited on 22 Novemberat The first byte of the UID should always be 0xE0. As the vicinity cards have to operate at a greater distance, the necessary magnetic field is less 0. 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.
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.
Proof sent to secretariat or FDIS ballot initiated: List of International Electrotechnical Commission standards.
A logic 0 starts with eight pulses of Frequency-shift keying by switching between a Air interface and initialization. Thus both power and bi-directional communications form the air interface between the vicinity card and the coupler.
Power is coupled to the vicinity card by an a. Please improve this by adding secondary or tertiary sources. Life cycle A standard is reviewed every 5 years 00 Preliminary. From Wikipedia, the free encyclopedia. The data frame delimitors are code violations, a start of frame is:. In addition, the card can be attached to objects like bags and valuable items which can then be tracked whilst in ieo vicinity of a reading device.
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Views Read Edit View history. 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. Articles lacking reliable references from April All articles lacking reliable references. 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. These are switched on and off to provide Manchester-encoded data that are then detected by 156993-2 coupler.
This allows the card to draw the maximum energy from the field almost continuously. Therefore this version remains current.
ISO/IEC – Wikipedia
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. The data are sent using a Manchester code. Final text received or FDIS registered for formal approval.
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. ISO standards by standard number. The data rate can be:. April Learn how and when to remove this template message.
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