Help with RFID Chips specifications:
Type
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Technology | |||
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Passive | An RFID tag without a battery. When radio waves from the reader reach the chip’s antenna, it creates a magnetic field. The tag draws power from the field and is able to send back information stored on the chip. | ||
Semi-passive | Similar to active tags, but the battery is used to run the microchip's circuitry but not to communicate with the reader. Some semi-passive tags sleep until they are woken up by a signal from the reader, which conserves battery life. | ||
Active | An RFID tag that comes with a battery that is used to power the microchip’s circuitry and transmit a signal to a reader. Active tags can be read from 100 feet or more away. | ||
Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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Interface | |||
Your choices are... | |||
RS232 | Interface between data terminal equipment and data communications equipment employing serial binary data interchange. | ||
RS422 | RS422 is a balanced serial interface for the transmission of digital data. It was designed for greater distances and higher Baud rates than RS232. | ||
RS485 | RS485 is a balanced serial interface for the transmission of digital data. The advantage of a balanced signal is the greater immunity to noise. The difference between RS422 and RS485 is that RS485 can be transformed into a multi-point application. | ||
I2C | Inter-Integrated Circuit (I2C) is a bus is an inexpensive type of chip interconnection that is popular on circuit boards (pronounced "Eye Squared C"). | ||
TTL | Transistor-transistor logic (TTL) is a common type of digital circuit in which the output is derived from two transistors. More commonly, however, TTL is used to designate any type of digital input or device. | ||
USB | USB products (Universal Serial Bus) is the original standard that supports data transfer rates of up to 12 Mbps. | ||
Wireless | The interface is wireless. | ||
Other | Other unlisted, specialized, or proprietary interfaces. | ||
Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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Performance
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Frequency: | RFID products use low, high, ultra-high and microwave frequencies. Each frequency has advantages and disadvantages that make them more suitable for some applications than for others. | ||
Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
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Memory: | The amount of memory controls the amount of data that can be stored on a tag. | ||
Search Logic: | All matching products will have a value greater than or equal to the specified value. | ||
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Read Rate: | The maximum rate at which data can be read from a tag expressed in bits or bytes per second. | ||
Search Logic: | All matching products will have a value greater than or equal to the specified value. | ||
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Detection Range: | The distance from which a reader can communicate with a tag. Active tags have a longer read range than passive tags because they use a battery to transmit signals to the reader. With passive tags, the read range is influenced by frequency, reader output power, antenna design, and method of powering up the tag. | ||
Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
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Operating Temperature | The range of temperatures through which the RFID product is designed to operate. | ||
Search Logic: | User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria. | ||
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Features
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Your choices are... | |||
Portable | The RFID reader is not a fixed system. | ||
Read / Write | RFID tags that can store new information on its microchip, or RFID product that can write to a RFID tag. | ||
Anticollision / Multi-read | A general term used to cover methods of preventing radio waves from one device from interfering with radio waves from another. Anti-collision algorithms are also used to read more than one tag in the same reader's field. | ||
Noncontact | Reader can operate without physical contact with the tag being read. | ||
Encryption | A system that scrambles its data to prevent unauthorized duplication. | ||
Continuous Reporting | A mode of reader operation where a transponder ID is reported continuously while that transponder remains in the field of the reader. | ||
Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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