RFID UHF Tray Reader: USB & RS232 Desktop Reader Writer (860-960MHz, ISO 18000-6C) for Library & Retail Checkout

Industrial RFID UHF Desktop Tray Reader & Writer (860–960 MHz, ISO 18000-6C)

The RFID UHF Tray Reader & Writer is a specialized high-performance benchtop pad interrogator engineered for high-density, multi-item data capture across circulation counters, checkout desks, jewelry sorting stations, and medical record desks. Featuring an expansive 370 × 280 × 24 mm flat desktop tray surface, this device enables operators to place an entire bundle of items directly onto the pad and read or program all embedded RFID tags simultaneously in fractions of a second.

Unlike conventional long-range portal readers whose antennas radiate electromagnetic fields 10 to 15 meters across a warehouse, this tray reader incorporates an integrated circular-polarized near-to-mid-field antenna with software-adjustable RF power from 1 dBm to 30 dBm. This allows system administrators to tightly calibrate the reading boundary between 10 cm and 2 meters, ensuring complete capture of items resting on the tray while totally ignoring adjacent stock, shopping baskets, or customer tags passing nearby.

Key Enterprise Application Environments

1. Library Circulation Desks (Book Borrow & Return Automation)

Traditional library operations rely on optical barcodes, requiring library staff or patrons to open book covers one by one and align barcodes with a red laser scanner. With this UHF Tray Reader:

• Patrons or librarians place a stack of 5 to 10 books directly onto the flat tray pad.
• The reader interrogates all book spine and inside-cover RFID tags in under 500 milliseconds.
• Directly interfaces with leading Library Management Systems (Koha LMS, LibSys, SLIM21) via SIP2, NCIP, or REST web services.
• Enables rapid bulk borrowing, automated return drop-offs, and instant EAS anti-theft security bit toggling.

2. Retail POS Checkout Counters & Garment Billing

In modern retail apparel and fashion stores, lines at billing counters create friction. This tray reader accelerates cash wrap operations:

• Cashiers drop folded garments or items onto the 370×280 mm counter tray.
• The system instantly registers all unique EPC numbers and transfers the SKU data directly to the POS software (Tally, SAP, Marg, or custom web billing).
• Prevents missed items, eliminates manual barcode aiming fatigue, and speeds up checkout lines by over 70%.

3. Luxury Jewelry & High-Value Asset Verification

• Trays of 20 to 50 rings, watches, or precious gemstone tags can be audited simultaneously without removing items from their velvet display slots.
• Rapidly identifies discrepancies during daily opening and closing safe counts.
• Verifies authentic digital certificates embedded in tamper-evident jewelry tags.

4. Healthcare Laboratories & Document Archive Tracking

• Batch verification of diagnostic sample test tube racks and blood bag carriers.
• Legal case file tracking: read thick multi-folder case documents in archives and registry offices in one pass.

Triple Host Connectivity Architecture

The reader provides flexible hardware integration pathways for any IT infrastructure:

1. USB 2.0 (Dual Mode):
   • HID Keyboard Wedge Mode: Operates driver-free across Windows, Linux, and macOS. Scanned tag EPCs type directly into any active cursor field (Excel, browser ERP, Word) followed by an automatic Enter key.
   • Virtual COM Port (VCP): Opens a high-speed serial pipe for custom client applications.
2. RS-232 Serial (DB9): Direct industrial connection to PLCs, edge controllers, legacy point-of-sale terminals, and microcontrollers at baud rates up to 115,200 bps.
3. RJ45 Ethernet LAN (10/100 Mbps): Connects the reader directly to local network switches, allowing remote cloud or on-premise servers to command reads and collect inventory streams over standard TCP/IP sockets.

Global Frequency & Standards Compliance

• ISO 18000-6C & EPC Class 1 Gen 2 (Gen2v2): 100% interoperable with all global UHF RAIN RFID tags (NXP UCODE, Impinj Monza, Alien Higgs, EM Microelectronic).
• Frequency Hopping Spread Spectrum (FHSS): Supports standard Indian frequency band (865–867 MHz WPC ETA notification GSR 564(E)), US FCC (902–928 MHz), and European ETSI (865–868 MHz), eliminating interference in dense reader environments.