Indledning
This manual provides detailed instructions for the setup, operation, and maintenance of your ACS ACR122U NFC Reader Writer. The ACR122U is a PC-linked contactless smart card reader/writer developed based on 13.56 MHz Contactless (RFID) Technology. It supports ISO/IEC18092 (NFC) standard, as well as MIFARE and ISO 14443 A and B cards. It is designed for various NFC applications, including payment, public transport, and network log-on.
Pakkens indhold
Kontroller venligst, at alle nedenstående varer er inkluderet i din pakke:
- 1x ACS ACR122U NFC Reader Writer
- 5x Ntag213 NFC Tags
- 2x UID MF1 Cards
- 1x SDK and Free NFC Tool Software (typically provided via download link or included media)

Image: The ACS ACR122U NFC Reader Writer with its USB cable and a plastic bag containing sample NFC tags and cards.
Opsætning
- Tilslut enheden: Plug the USB cable of the ACR122U reader into an available USB 2.0 port on your computer. The device is powered directly from the USB port.
- Driver installation: The ACR122U is designed to be driver-free for Windows XP, Vista, 7, 8, and 10. Your operating system should automatically detect and install the necessary drivers. If prompted, allow the system to install the device.
- Software installation: Install the provided SDK and NFC tool software. This software is essential for utilizing the full read/write capabilities of the device. Refer to the software's specific installation guide for detailed steps.

Billede: Et nærbillede view of the white ACS ACR122U NFC Reader Writer with the NFC logo, connected to a USB cable.
Betjeningsvejledning
Læser NFC Tags:
- Ensure the ACR122U reader is connected to your computer and the NFC tool software is running.
- Placer NFC tag or card directly on the surface of the ACR122U reader.
- The software should detect the tag and display its information. The read distance is typically 3-5 cm.
Writing to NFC Tags:
- Open the NFC tool software and navigate to the writing function (e.g., "Encode Smart Poster", "Text", or "URI" tabs).
- Enter the data you wish to write to the NFC tag (e.g., a URL, text message).
- Place a compatible NFC tag på læseren.
- Initiate the writing process through the software. Follow any on-screen prompts.

Image: A screenshot of the "NFC Tool for ultralight" software interface, showing options for Smart Poster, Text, and URI encoding, with input fields for title, URI, prefix, and message.

Image: A screenshot of the "M1 Card Service Program" software, illustrating support for ISO14443 Type A (Mifare), ISO14443 Type B, and FeliCa (ISO14443 Type C) protocols, along with peer-to-peer communication and extension diagrams.
Supported Cards and Protocols
The ACR122U supports a wide range of NFC and RFID standards:
- protokoller: IEC14443A & ISO18092 (NFC)
- Kort: Mifare 1k, Mifare 4k, Ultralight, UltralightC, Ntag213/215/216, Mifare Plus 2k/4k, Mifare Desfire 2k/4k/8k
Specifikationer
| Feature | Specifikation |
|---|---|
| Dimensioner (L x B x H) | 90 mm x 65 mm x 12.8 mm (3.54 x 2.56 x 0.5 tommer) |
| Vægt | 100 gram (4.2 ounce) |
| Materiale | PC enclosure |
| Farve | Hvid |
| Kabellængde | 1.0 meter USB kabel |
| Arbejdsfrekvens | 13.56 MHz |
| Læs afstand | 3-5 cm |
| Læsetid | <100 ms |
| Interface | USB 2.0 |
| Strømforsyning | 5V/100 mA from USB port |
| Outputformat | 10 digit Decimal (converted from Chip UID) |
| Operativsystemsupport | Windows XP, Vista, 7, 8, 10 (Driver-free) |
| Driftstemperatur | -10°C til +60°C |
| Driftsfugtighed | 5 % til 95 % RH (ikke-kondenserende) |
| Opbevaringstemperatur | -25°C til +45°C |
| Opbevaring Fugtighed | 5 % til 95 % RH (ikke-kondenserende) |

Image: The back of the ACS ACR122U NFC Reader Writer, displaying the model number ACR122U-A9, P/N, S/N RR545-105445, power specifications, and compliance markings.
For more information, refer to the official product page or support documentation for ACR122U-A9 RR545-105445.
Opretholdelse
- Rensning: Use a soft, dry cloth to clean the surface of the reader. Avoid using liquid cleaners or abrasive materials.
- Opbevaring: Opbevar enheden et køligt, tørt sted væk fra direkte sollys og ekstreme temperaturer, når den ikke er i brug.
- Håndtering: Håndter enheden forsigtigt for at undgå fysisk skade. Undgå at tabe den eller udsætte den for kraftige stød.
Fejlfinding
- Enhed ikke fundet:
- Ensure the USB cable is securely connected to both the reader and the computer.
- Try plugging the reader into a different USB port.
- Genstart din computer.
- Verify that your operating system is supported (Windows XP, Vista, 7, 8, 10).
- Cannot Read/Write Tags:
- Sørg for tag is placed correctly on the reader, within the 3-5 cm read distance.
- Tjek om tag type is supported by the ACR122U (e.g., Mifare, Ntag213/215/216).
- Verify that the NFC tool software is running and configured correctly for the operation (read/write).
- Nogle tags may be locked or protected from writing.
- Softwareproblemer:
- Ensure you have the latest version of the SDK and NFC tool software.
- Consult the software's documentation or support resources for specific error messages.
Garanti og support
For warranty information and technical support, please refer to the documentation provided with your purchase or visit the official ACS website. Protection plans may be available for extended coverage.
- 3-årig beskyttelsesplan: Kan købes.
- 4-årig beskyttelsesplan: Kan købes.
Contact information for ACS support can typically be found on their official website or within the software documentation.





