ACM1281S-C7 Serial Contactless Reader Module with SAM Slot

The ACM1281S-C7 Serial Contactless Reader Module with SAM Slot was designed based on 13.56 MHz technology for fast and easy integration into embedded systems. It is a plug-and-play device that does not require any driver installation.


ACM1281S-C7 supports ISO 14443 Parts 1-4 Type A and B cards, and MIFARE® Classic series. It has a card reading distance of up to 50 mm (depending on tag type). Moreover, it has an ISO 7816-compliant built-in SAM (Secure Access Module) slot, which can be used with a SAM card for high-level security in contactless transactions.

This reader module with integrated (on-board) antenna comes with an optional serial cable. It has additional features like USB firmware upgradability and extended APDU support. Lastly, ACM1281S-C7 makes use of high-speed communication for contactless cards (maximum of 848 kbps), which makes it suitable for highly demanding applications. Its RS232 serial interface can accommodate more devices, such as vending machine payment systems, kiosks, gaming machines, and other integrated systems, which have different serial ports.



  • Serial RS232 Interface
  • USB interface for power supply
  • CCID-like frame format (binary format)
  • USB Firmware Upgradeability
  • Smart Card Reader:
    • Contactless Interface:
      • Read/write speed up to 848 kbps
      • Built-in antenna for contactless tag access, with card reading distance of up to 50 mm (depending on tag type)
      • Supports ISO 14443 Part 4 Type A and B cards and MIFARE® Classic series
      • Built-in anti-collision feature (only 1 tag is accessed at any time)
      • Supports extended APDU (max. 64 kbytes)
    • SAM Interface:
      • ISO 7816-compliant SAM slot, Class A (5V)
  • Peripherals:
    • User-controllable bi-color LED
    • User-controllable buzzer



  • e-Government
  • Banking & Payment
  • e-Healthcare
  • Access Control
  • Network Security
  • e-Purse & Loyalty
  • Transportation


Tech Specs:

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 ISO 7816 (SAM Slot)
ISO 14443
RoHS 2
Device Driver Operating System Support
Device Driver Operating System Support Windows®

Additional information

Weight 20,8 g
Dimensions 106,6 × 67 × 16 mm


Form Factor