ACM1281S-C7 Serial Contactless Reader Writer Module
Integrating contactless smart card technology into embedded systems can be challenging—complex hardware, limited compatibility, and security concerns often slow development. The ACM1281S-C7 Serial Contactless Reader Module addresses these challenges, offering a compact, plug-and-play solution designed for reliable, high-speed NFC communication at 13.56 MHz.
Ideal for kiosks, vending machines, gaming terminals, and other embedded systems, it combines ease of integration with advanced security, maximizing performance while minimizing development effort.
Technical Specifications
| Physical Characteristics | |
|---|---|
| Dimensions (mm) | 106.6 mm (L) x 67.0 g (W) x 16.0 g (H) |
| Weight (g) | 20.8 g |
| Serial Interface | |
| Protocol | RS-232 |
| Connector Type | DB-9 Connector |
| Power Source | Via USB cable |
| Cable Length | 1.5 m, Detachable (Optional) |
| Contactless Smart Card Interface | |
| Standard | ISO 14443 A and B Parts 1-4 |
| Protocol | ISO14443-4 Compliant Cards, T=CL MIFARE® Classic Card Protocol, T=CL |
| Antenna | 65 mm x 60 mm |
| SAM Card Interface | |
| Number of Slots | 1 |
| Standard | ISO 7816 Parts 1-3, Class A (5 V) |
| Protocol | T=0; T=1 |
| Built-in Peripherals | |
| LED | 2 single-color: Red and Green |
| Buzzer | Monotone |
| Other Features | |
| Firmware Upgrade | Supported |
| Certifications/Compliance | |
| Certifications/Compliance | ISO 7816 (SAM Slot) ISO 14443 CE FCC RoHS REACH |
| Device Driver Operating System Support | |
| Device Driver Operating System Support | Windows® Linux® |
Pain Points & Solutions
| Challenge | ACM1281S-C7 Solution | Value Delivered |
|---|---|---|
| Complex integration in embedded systems | Plug-and-play module with built-in antenna and optional serial cable | Reduces development time and simplifies system design |
| Limited compatibility with cards and tags | Supports ISO 14443 Parts 1-4 Type A/B and MIFARE® Classic | Ensures wide device compatibility and flexibility for multiple applications |
| Security concerns in contactless transactions | ISO 7816-compliant built-in SAM slot for high-level security | Enables secure authentication and protects sensitive data |
| Slow communication for high-demand applications | High-speed contactless communication up to 848 kbps | Reliable, responsive performance in demanding environments |
| Device signaling and feedback limitations | User-controllable LEDs and buzzer | Enhances user experience and system interaction |
Key Features
Dual Interface Support: RS232 serial interface for data, USB for power supply
High-Speed Contactless Communication: Up to 848 kbps
Built-in Antenna: Reliable card access with reading distance up to 50 mm (depending on tag type)
Card Compatibility: ISO 14443 Type A/B, MIFARE® Classic series
Advanced Security: ISO 7816-compliant SAM slot for secure authentication
Extended APDU Support: Up to 64 kB
Peripheral Controls: 2 single-color LEDs and 1 buzzer, user-controllable
Firmware Upgradeable: USB firmware upgrade for future-proof integration
Anti-Collision Feature: Ensures single tag access at a time
Applications
Embedded Systems: Vending machines, kiosks, gaming terminals
Access Control: Secure entry systems with contactless cards
Payment Systems: Cashless transactions for public facilities or entertainment
Asset & Inventory Management: Fast tag verification in logistics or warehouses
Why Choose ACM1281S-C7
Simplifies NFC integration for embedded systems
Ensures high-speed, secure, and reliable performance
Supports a wide range of cards and tags
Reduces development and deployment time with plug-and-play design
Flexible firmware upgrade ensures long-term system compatibility
Conclusion
The ACM1281S-C7 Serial Contactless Reader Writer Module offers a robust solution for anyone needing an efficient and versatile NFC reader. With its advanced features, ease of use, and high security, it’s perfect for businesses looking to enhance their transaction capabilities or streamline access control systems.


















