TESSERA 45
Powerful by architecture.
A versatile RFID and BLE platform for secure identification, access control and embedded OEM applications. Multi-standard compatibility, LEGIC security architecture and flexible integration in an ultra-compact 45 × 45 mm module.
One compact module.
Multiple possibilities.
TESSERA 45 combines broad credential support, advanced security features and embedded integration capabilities in one compact platform.
Built around the proven LEGIC SM-6300 reader chipset, the RM4545V1 module supports RFID technologies, NFC standards and Bluetooth Low Energy. An integrated PCB antenna and RS-485 interface simplify the development of connected identification devices.
Designed for OEM manufacturers and system integrators, the platform is suitable for applications ranging from electronic access control to workforce identification and cashless systems.
Multi-standard RFID
Support for LEGIC advant and prime, ISO 14443A/B, ISO 15693 and selected MIFARE, NFC and FeliCa credentials.
BLE and mobile credentials
Designed for smartphone-based identification, with integration capabilities for mobile credential and wallet ecosystems.
Embedded-ready design
Integrated antenna, compact PCB, RS-485 communication and dedicated service and diagnostics interfaces.
Security is the foundation, not an afterthought.
LEGIC Master-Token System Control provides an architecture for controlled authorization of credentials and readers within a managed identification environment.
The platform supports cryptographic technologies including AES-128, AES-256, DES and 3DES. Dedicated Master Tokens enable system owners to manage trust relationships and credential authorization.
Master-Token-based credential and reader authorization.
AES-128, AES-256, DES and 3DES support.
Administration of trusted readers and credentials.
Data exchange with compatible RFID transponders.
Built to become part of your product.
A compact 45 × 45 mm PCB with chamfered corners and an integrated antenna reduces space requirements and simplifies OEM integration.
The module includes an RS-485 interface for host communication, USB Type-C for service and firmware operations, RX/TX diagnostics and a dedicated system controller for startup and operational supervision.
Its STM32 ARM Cortex-M0+ supervisory microcontroller handles hardware initialization, communication monitoring, diagnostics and status indication, helping deliver reliable operation in demanding embedded environments.
Integrated antenna
13.56 MHz PCB antenna eliminates the need for a separate external RF antenna component.
RS-485 interface
OSDP v2 and Modbus communication for integration with compatible host systems.
STM32 controller
Independent startup control, communication monitoring, RGB status indication and service diagnostics.
Designed for diverse identification environments.
A flexible foundation for manufacturers and technology providers developing secure, connected devices.
Access control
Contactless identification and authentication for readers and electronic access systems.
Mobile identification
Smartphone-based credentials using BLE and supported NFC or wallet-based ecosystems.
Cashless systems
Identification components for open-loop and closed-loop transaction environments.
Biometric integration
Secure credential functionality alongside compatible biometric authentication systems.
Ticketing and workforce
Contactless identification for tickets, staff credentials and workforce management.
Embedded OEM products
Compact RFID capability for industrial and security-focused connected devices.
Technical specifications.
Core parameters of the TESSERA 45 / RM4545V1 module.
| Parameter | Specification |
|---|---|
| RFID platform | LEGIC SM-6300 |
| Radio frequency | 13.56 MHz |
| PCB dimensions | 45 × 45 mm |
| Communication interface | RS-485 |
| Communication protocols | OSDP v2, Modbus |
| Power supply | 5–24 V DC |
| Current consumption | Up to 60 mA |
| Operating temperature | −25°C to +65°C |
| Indication | Green, red and blue LEDs; piezoelectric buzzer |
| RFID antenna | Integrated PCB antenna |
| Mobile technology | Bluetooth Low Energy; NFC compatibility |
| Security architecture | LEGIC Master-Token System Control |
| Supervisory controller | STM32 ARM Cortex-M0+ |
Specified reading distances
| Radio standard | Reading distance |
|---|---|
| ISO 14443A | 3.5 cm |
| ISO 14443B | 4 cm |
| ISO 15693 | 5 cm |
| LEGIC RF | 5 cm |
Distances are datasheet values and can vary with the credential and installation conditions.
Supported credential technologies
| Technology | Examples of supported credential families |
|---|---|
| LEGIC RF | LEGIC advant and prime |
| ISO 14443A | LEGIC ATC/CTC, MIFARE Ultralight, Classic, Plus, DESFire, SmartMX, NFC P2P |
| ISO 14443B | Infineon SLE |
| ISO 15693 | LEGIC ATC/CTC, EM 4035, Infineon SRF55VxxP, Tag-It HFI |
| INSIDE Secure | UID only |
| Sony FeliCa | FeliCa, NFC P2P |
Detailed variants and compatibility requirements are listed in the product datasheet.
Explore the technology in detail.
Review the full TESSERA 45 technical datasheet, including supported credential variants, hardware architecture, electrical specifications and integration interfaces.
TESSERA 45 technical datasheet · June 2026
Build your next identification solution with TESSERA 45.
Developing a new access control product or integrating RFID into an existing device? Contact RCS Engineering to discuss technical requirements, OEM integration and product availability.