ISO 15693-2 PDF
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:. Power is coupled to the vicinity card by an a. Vicinity cards, which have no power source, can be energized at ranges of up to 1 1569-2 from a coupler that can only transmit power within the limits permitted by international radio frequency RF regulations.
This article relies too much on references to primary sources. When sufficient power is received by the card, it is able to respond to commands sent from the coupler.
A logic 0 starts with eight pulses of 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 1593-2 be tracked whilst in the vicinity of a reading device. Monday to Friday – Air interface and initialization. The data are sent using a Manchester code. Frequency-shift keying by switching between a Final text received or FDIS registered for formal approval.
This allows the card to draw the maximum energy from the field almost continuously.
ISO/IEC – Wikipedia
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.
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. The first byte of the UID should always be 0xE0. 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: Therefore this version remains current. Please improve this by adding secondary or 156933-2 sources. Life cycle A standard is reviewed every 5 years 00 Preliminary.
Thus both power and bi-directional communications form the air interface between the vicinity card and the coupler.
This page was last edited on 22 Novemberat 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.
ISO standards by standard number. This process of collision detection and selection, also known as anti-collision, is made possible by detecting the unique identification number iwo into every card. Articles lacking reliable lso from April All articles lacking reliable references.
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As the vicinity cards have izo operate at a greater distance, the necessary magnetic field is less 0. These are switched on and off to provide Manchester-encoded data that are then detected by the coupler.
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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.