4-Port Embedded UHF RFID Reader Module

RLM-4P 4-Port UHF RFID Reader Module

Compact embedded RFID module for OEM multi-antenna reader design, smart cabinets, desktop readers, and industrial automation devices. RLM-4P gives integrators a controlled RF platform for reliable multi-antenna UHF RFID hardware.

  • 4-port embedded RFID reader module with a compact 85.0mm x 80.1mm x 8.0mm footprint
  • 33dBm maximum RF output with 1dB stepping for controlled RF tuning
  • Supports ISO 18000-6C/6B and EPC C1G2 air interface requirements
  • SMA-K antenna connector and 15 PIN FPC connector for OEM integration
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RLM-4P 4-port UHF RFID reader module for OEM embedded RFID hardware
RLM-4P embedded RFID reader module hardware view

Technical Overview

How RLM-4P fits a 4-port embedded UHF RFID reader design

RLM-4P is designed for OEM hardware teams that need multiple antenna outputs inside a compact industrial RFID reader. The module combines adjustable RF output, regional UHF band support, and a 15 PIN FPC host connector in a board-level format suitable for embedded reader products.

With up to 33dBm RF output, 1dB power stepping, RSSI support, tag data filtering, and high-speed tag reading above 500 reads per second, the module is suited to controlled multi-antenna read zones where stable tag capture matters more than decorative product packaging.

The SMA-K antenna connector layout helps integrators route RF paths cleanly inside compact reader assemblies, smart cabinets, self-service terminals, and industrial automation devices that require continuous UHF RFID operation.

  • OEM RFID reader hardware development
  • Smart cabinet and fixed reader integration
  • Warehouse automation and RFID asset tracking
  • Industrial RFID systems requiring multi-antenna coverage

Core Features

Engineering features for OEM RFID module integration

RLM-4P focuses on stable RF output, compact host integration, and practical multi-antenna deployment for industrial RFID hardware manufacturers.

Compact Module Design

RLM-4P uses a 85.0mm x 80.1mm x 8.0mm board format for embedded RFID reader hardware, smart cabinets, and OEM device integration.

Multi-Antenna Port Layout

The 4 ports RF architecture supports multi-antenna industrial RFID systems that need controlled read-zone coverage.

Regional UHF Frequency Support

Frequency configurations cover FCC, ETSI, and SRRC-MII UHF RFID deployment regions according to the supplied specification.

Adjustable RF Output

33dBm maximum RF output with 1dB stepping gives engineers practical control during RF tuning and antenna matching.

High-Speed Tag Reading

Read speed above 500 times per second supports warehouse automation, production line verification, and multi-tag RFID asset tracking.

SMA-K RF Port

SMA-K antenna connectors provide a familiar RF interface for industrial reader design and antenna cable routing.

15 PIN FPC Host Connector

The 15 PIN FPC connector supports compact host-board integration in OEM RFID reader products.

RSSI and Tag Filtering

RSSI data and tag data filtering help integrators improve application-level control in industrial RFID automation systems.

Application Scenarios

Where RLM-4P supports industrial RFID systems

Use this 4-port UHF RFID reader module when your product needs embedded reader control, antenna-zone planning, and manufacturer-level support.

Smart Cabinet RFID Readers

Use RLM-4P as the embedded UHF RFID reader board for compact smart cabinets, tool lockers, and controlled inventory points.

Desktop Reader Development

Build OEM desktop RFID readers that need several antenna outputs, stable RF tuning, and a compact embedded module footprint.

Production Line Fixtures

Integrate RFID tag reading into industrial fixtures where multiple antennas check materials, bins, or semi-finished goods.

Warehouse Check-In Points

Create compact receiving stations for RFID warehouse solution workflows, carton verification, and asset registration.

Self-Service RFID Terminals

Embed a 4-port UHF RFID reader module into kiosks, service cabinets, and unattended equipment rooms.

Garment RFID Tracking

Support multi-antenna garment RFID tracking stations used for batching, sorting, and stock movement confirmation.

Technical Specifications

RLM-4P specifications

The table below uses only supplied product specifications for engineering reference.

RLM-4P 4-port UHF RFID reader module technical specification table
ModelRLM-4P
Product Type4-port embedded UHF RFID reader module
Dimensions85.0mm x 80.1mm x 8.0mm
RF Air InterfaceISO 18000-6C/6B, EPC C1G2; GB/T 29768-2013 (Optional); GJB 7377.1-2011/7377.1-2018A
FeaturesTemperature and humidity protection support; DRM, simultaneous ID; tag data filter; RSSI
Operating FrequencyFCC (US) 902-928MHz; ETSI (EU) 865.6-867.6MHz; SRRC-MII (CN) 920-925MHz
RF Power Output33dBm±1dB maximum
Sensitivity-85dBm
Power Adjustment1dB stepping
ModulationDSB-ASK, PR-ASK
Continuous EPC Reading0-20M, depending on configuration
Continuous EPC Writing0-10M, depending on configuration
Read Speed>500 times/sec
Interface15 PIN FPC connector
RF PortSMA-K antenna connector
Operating Temperature-20°C ~ +70°C
Storage Temperature-40°C ~ +85°C
Humidity10-95% RH, non-condensing

SDK & Integration Support

Integration support for OEM RFID hardware manufacturers

Raylink RFID supports system integrators and OEM hardware teams with module selection, RF layout review, antenna matching discussion, and reader integration guidance. The goal is to help your engineering team move from module evaluation to a stable industrial RFID reader product.

For software and host integration, share your target interface, application workflow, and platform requirements. Raylink can confirm the supported development resources for your project before you commit to a hardware design.

  • OEM / ODM reader product cooperation
  • Firmware and hardware integration review
  • RF tuning and antenna deployment discussion
  • Support for RFID warehouse solution and industrial automation projects

FAQ

Questions about RLM-4P UHF RFID reader module

What is the RLM-4P UHF RFID reader module used for?

RLM-4P is used as an embedded UHF RFID reader engine for OEM RFID hardware, smart cabinets, fixed reader devices, warehouse automation, and industrial RFID asset tracking systems.

Does RLM-4P support OEM or ODM reader development?

Yes. Raylink RFID supports OEM and ODM manufacturing, firmware cooperation, hardware integration support, and engineering review for reader products based on customer project requirements.

Which UHF RFID air interface does RLM-4P support?

According to the supplied specification, RLM-4P supports ISO 18000-6C/6B, EPC C1G2, optional GB/T 29768-2013, and GJB 7377.1-2011/7377.1-2018A air interface requirements.

Can RLM-4P be used for industrial RFID automation?

Yes. RLM-4P is suitable for industrial RFID automation when the antenna layout, RF power, shielding, software workflow, and mechanical installation are engineered for the specific read zone.

How should I evaluate RLM-4P for my project?

Share your tag type, antenna plan, reading distance, enclosure design, host interface requirements, and target region. Raylink can review the integration conditions and suggest the appropriate module configuration.

Direct RFID Hardware Manufacturer

Build your RLM-4P based RFID reader project with Raylink engineering support

Send your antenna plan, target application, host platform, and expected deployment region. Raylink RFID can review the project requirements and recommend the next step for module evaluation.

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