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Keycard systems operate by physically moving detainers in the locking mechanism with the insertion of the card, by shining LEDs through a pattern of holes in the card and detecting the result, by swiping or inserting a magnetic stripe card, or in the case of RFID or NFC cards, merely being brought into close proximity to a sensor.
A proximity card controlled turnstile A passive proximity card with the plastic casing opened to show components: antenna coil and integrated circuit (black object bottom center) Anatomy of proximity card: coil and IC The proximity card coil of an electronic fare collection system. A proximity card or prox card [1] also known as a key card or ...
When unlocking, insert the electronic key into the keyhole of the passive electronic lock, that is, the three contacts on the head end of the key are in contact with the three contacts on the passive electronic lock. At this time, the key will supply power to the passive electronic lock, and at the same time, read the ID number of the passive ...
During the smart card lifecycle, the smart card is changing state (examples of such states include issued, blocked and revoked), the process of taking a smart card from one state to another, is the main responsibility of a smart card management system. Different smart card management systems call these processes by different names.
[1] [2] They were the first company to develop and widely distribute "Electronic Access Control Systems". The company's original readers used cards which were made from barium ferrite and worked by magnetically attracting and repelling locking/unlocking cores within the reader module mechanism. These cards were primarily used by fraternal ...
PAX Technology S90 credit card terminal with a Visa card inserted.. A payment terminal, also known as a point of sale (POS) terminal, credit card machine, card reader, PIN pad, EFTPOS terminal (or by the older term as PDQ terminal which stands for "Process Data Quickly" [1]), is a device which interfaces with payment cards to make electronic funds transfers.
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