FEIG – ID MRMU400 UHF Mid Range Reader Module

The ID MRMU400 is a compact UHF mid-range RFID reader module designed for machine integration and industrial automation. With up to 1W RF output and support for two antennas, it delivers up to 4 meters of read range, making it ideal for controlled environments like mechanical and plant engineering. Featuring a Linux-based edge computing platform, secure key storage, and reliable connectivity, it simplifies RFID integration while reducing system complexity.

Specification

  • Output Power: Up to 1 W, adjustable in 100 mW steps

  • Antenna Ports: 2 x MCX sockets (50 Ohm), with multiplexer

  • Interfaces: RS485, Ethernet (IPv4/IPv6), USB OTG

  • I/O:

    • 1 optocoupler input

    • 1 optocoupler output

    • 1 relay output (1 A switching / 2 A continuous)

  • Power Supply: 12–24 V DC ±10%, Power-over-Ethernet (PoE+)

  • Computing: ARM Cortex-A7 + M4, 1 GB Flash, 512 MB RAM

  • Operating System: Embedded Linux

  • Reader Modes: Host Mode, Buffered Read, Notification

  • Transponder Support: EPC Class1 Gen2, ISO 18000-63, ISO 29167

  • Mounting: Includes aluminum plate for heat dissipation

  • Protection: RF channel monitoring, SWR diagnostics, thermal protection

  • Operating Temp: –40 °C to +70 °C

  • Certifications: EN 302 208, FCC, IC RSS-247, EMC, Cybersecurity

Benefits

Designed for Seamless Integration

The compact, housing-free module fits easily into machines or cabinets, minimizing installation space while maintaining full access to I/O and data ports.

Edge-Ready Architecture

Linux OS and onboard memory enable real-time application execution directly on the reader, without external processors or controllers.

Industrial Performance with Secure Operation

With durable RF tuning, secure memory for key storage, and reliable mid-range performance, it ensures stability in critical industrial workflows.

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