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• How do I connect ACR83 to the PC?

  Connect the USB plug of the reader to any available USB port of your PC. Wait for the PC to respond. 

  https://www.acs.com.hk/en/frequently-asked-questions/5/smart-card-readers-with-pin-pad/
• Does the ACR83 support Linux?

  Beta drivers are available for Linux. Only PC/SC driver is available for Linux.

  https://www.acs.com.hk/en/frequently-asked-questions/5/smart-card-readers-with-pin-pad/
• Can I upgrade the firmware of the ACR83 reader?

  No. 

  https://www.acs.com.hk/en/frequently-asked-questions/5/smart-card-readers-with-pin-pad/
• What kind of support is available in terms of application development?

  ACS provides comprehensive sample codes that demonstrate various commands used to interact with the reader. Sample codes are part of a complete Software Development Kit which provides the user with sample applications, tools and utilities, and sample codes.

  https://www.acs.com.hk/en/frequently-asked-questions/5/smart-card-readers-with-pin-pad/
• What are the different NFC tags?

  There are 4 types of NFC tags: Type1—based on ISO14443A; memory availability is between 96 byte to 2kbytes; communication speed: 106kbits/s (Chip: Topaz) Type2—based on ISO14443A; memory availability is between 48 byte to 2kbytes; communication speed: 106kbits/s (Chip: Mifare Ultralight) Type3—based on Japanese Industrial Standard (JIS) C 6319-4, known as FeliCa; memory availability is variable and limit is 1MByte per service; communication speed: 212kbit/s or 424kbits/s (Chip: FeliCa) Type4—based on ISO14443A and B standard; memory availability is variable and up to 32KByte per service; communication speed: up to 424kbits/s (Chip: Mifare DESFire)

  https://www.acs.com.hk/en/frequently-asked-questions/6/contactless-readers/
• What are the contactless cards supported by ACR122/ACR1222?

  ACR122/ACR1222 NFC readers support MIFARE® cards (Classics, DESFire), ISO14443 Types A and B, FeliCa cards, and NFC tags Type 1-4, with the exception of ACR1222U-J4 FeliCa Web-To Reader, which only supports FeliCa Mobile phones with versions 1.0 and 2.0. Note, however, that we are working on enhancing ACR1222U-J4 to support NFC-enabled phones, and will announce NFC-compatible versions, once they are ready.

  https://www.acs.com.hk/en/frequently-asked-questions/6/contactless-readers/
• What are the different versions of ACR122?

  ACR122U is a PC/SC compliant USB NFC Reader, which offers interoperability of devices. ACR122T is a token version of the ACR122U, which offers portability for personal use. ACR122S is a Serial NFC Reader that uses RS232 communication protocol, which enables plug-and-play operation without requiring driver installation. ACR122L is a Serial NFC Reader with LCD that comes with various built-in peripherals: 4 LEDs, Buzzer and a 2-Line Graphic LCD that provides users a clear indication of the reader, card or operation status. Its RS232 communication protocol also enables plug-and-play operation without requiring driver installation. ACR1222L is a USB NFC Reader with LCD that comes with various built-in peripherals: 4 LEDs, Buzzer and a 2-Line Graphic LCD that provides users a clear indication of the reader, card or operation status. Its PC/SC compliance in all reader interfaces and firmware upgradability offer interoperability and support for post-deployment firmware updates, respectively. ACR1222U-J4 is a device specifically designed to support FeliCa Mobile devices in Japan, and is used mainly for mobile marketing.

  https://www.acs.com.hk/en/frequently-asked-questions/6/contactless-readers/
• How do I install the ACR122/ACR1222 driver to my system?

  USB devices (i.e. ACR122U, ACR122T and ACR1222L) use CCID drivers, therefore installation can be done through Windows Update. In case the Windows Update is not available, please download the driver from the ACS website: http://acs.com.hk/en/drivers/. Serial devices (i.e. ACR122S and ACR122L), require libraries for high-level programming, which are available from the ACS website: http://acs.com.hk/en/drivers/. For low-level programming, no drivers or libraries are needed. Lastly, the ACR1222U-J4 requires driver installation when changing the URL or updating the firmware. The CCID driver installation can be done through Windows Update.

  https://www.acs.com.hk/en/frequently-asked-questions/6/contactless-readers/
• What are the supported Operating Systems?

  Please refer to the corresponding product page from the ACS website: http://www.acs.com.hk/en/product-lines/6/contactless-readers/.

  https://www.acs.com.hk/en/frequently-asked-questions/6/contactless-readers/
• Can I perform peer-to-peer operation from an NFC Reader and an NFC-enabled phone?

  It is possible to have the ACS NFC Readers work peer-to-peer with NFC-enabled phones using low-level programming and to have the NFC Logical Link Control Protocol (LLCP) and NFC Simple NDEF Exchange Protocol (SNEP) handled on the application side. Please refer to the NFC Forum’s website for more information: http://www.nfc-forum.org .

  https://www.acs.com.hk/en/frequently-asked-questions/6/contactless-readers/