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• 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/
• How can I store NDEF data to an NFC tag using an ACS NFC Reader?

  Different NFC tags have their own Application Note document on how to store NDEF data into the tag. The data (e.g. URL, business card, etc.) needs to be formatted first with the help with the Application Note. When the data is formatted using NDEF, it can then be written on the tag using the ACS NFC Reader.

  https://www.acs.com.hk/en/frequently-asked-questions/6/contactless-readers/
• Why are there entries about the ACR122/ACR1222 in my Event Log under Windows even when the device works properly?

  These entries are created by the Resource Manager under Windows and sometimes can also be found even if there is no problem with the reader. Please ignore these entries if the device works properly.  Otherwise, please contact ACS support at [email protected].

  https://www.acs.com.hk/en/frequently-asked-questions/6/contactless-readers/
• What are the smart cards supported by ACR1281?

  The contactless interface supports contactless cards following the ISO 14443 Parts 1-4 standard. It supports major Type A and B contactless cards and Mifare products. The contact interface support MCU and memory cards following the ISO 7816 Parts 1-3 standard. The SAM interface supports MCU cards following the ISO 7816 standard and using either T=0 or T=1 protocol.

  https://www.acs.com.hk/en/frequently-asked-questions/6/contactless-readers/
• What are the different versions of ACR1281?

  ACR1281U-C1 is a USB Dual Interface Smart Card Reader that can access both contact and contactless cards. It also has a built-in SAM slot for added security in both contact and contactless operations. ACR1281U-C1 is has PC/SC compliance in all of the reader interface thus, offering interoperability with other devices. ACR1281S-C1 is a Serial Dual Interface Smart Card Reader that can access both contact and contactless cards. It also has a built-in SAM slot for added security in both contact and contactless operations. ACR1281S-C1 uses the serial RS232 communication protocol, which provides a plug and play operation without requiring driver installation. ACR1281U-nPA Contactless Reader can access any contactless smart cards following the ISO 14443 standard including Germany’s e-ID called neuer Personalausweis (nPA). It is specially designed to support highly demanding applications such as government e-ID programs.

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