UR4 Fixed RFID Reader

Four Antenna Ports for Flexible Installation

The Chainway UR4 RFID reader comes with four 50 ohm SMA antenna ports. Integrators can attach antennas and place them around doorways, conveyors, cabinets or any other area that needs monitoring. This setup allows the coverage to be shaped based on how tagged items move and how they are oriented.

Just having antennas does not mean better identification. Things, like cable length, antenna polarization, metal surfaces, nearby equipment and where the tags are placed all influence how well the system works. That’s why testing the site carefully is important to find the antenna arrangement.

High Speed RFID Performance

Chainway provides the reader with an RFID engine that uses Impinj E Series chips and works with Impinj Gen2X technology. The manufacturer says the maximum inventory speed can go over 1,300 tags, per second when conditions are right.

This kind of speed is useful when a lot of tagged items move through a checkpoint or need to be counted.. Real read rates can change depending on how many tags are present in the radio environment, the antenna setup and the software settings.

Compatible UHF RFID Standards

The Chainway UR4 fixed UHF RFID reader works with EPCglobal UHF Class 1 Gen 2 and ISO 18000-6C protocols. These known standards make it possible to talk to compatible passive UHF RFID tags. These tags are used for tracking inventory and identifying assets.

The reader can be set up to work at frequency ranges. These ranges are 865 to 868 MHz, 920 to 925 MHz and 902, to 928 MHz. It is important to choose the right frequency setup. The right frequency setup must be chosen based on radio rules and the needs of the project.

Adjustable Output Power

The standard reader configuration delivers one watt of output. Its power can be adjusted between 5 and 30 dBm. An optional two‑watt configuration is available. Allows power adjustment, from 10 to 33 dBm but only in eligible markets.

Adjustable power allows technicians to set the desired reading zone and reduce detection of tags. However higher power does not automatically improve accuracy. Proper antenna placement, suitable tags and software filtering remain essential. Output settings must follow regulatory limits.

Ethernet and Serial Connectivity

The UR4 is fitted with an RJ45 Ethernet port and an RS232 serial port to facilitate integration with compatible host computers, controllers, and commercial applications. The Ethernet port allows networking at 10/100 Base T speeds, while the serial port provides a second option for integration.

Also included by Chainway is the provision for digital inputs and outputs in case of interfacing with other peripheral devices.

Compact Aluminum Housing

The reader is 102.8 by 102.8 by 28 millimeters in size and weighs roughly 390 grams without the antennas. The aluminum alloy case helps with cooling. Makes it easy to put inside equipment cabinets or specific installation areas.

Chainway says the operating temperature can be as low as minus 25 degrees Celsius and as high as 65 degrees Celsius. The device still needs to be installed with protection, from weather, physical damage and wrong power connections. If it is used outside it must be placed in an enclosure that fits the conditions.

Power and Deployment Options

The UR4 works with a DC input that ranges from 9 to 12 volts. Chainway offers Power over Ethernet setups, including PoE and PoE Plus versions. Buyers must make sure they know which power option is included in their quote before choosing cables or network switches.

Using the power supply making sure there is good airflow connecting the antenna cables properly and grounding the device correctly all help keep the UR4 running reliably. Anyone installing the UR4 should read the manufacturer’s instructions carefully before linking the reader to devices.

Key Technical Specifications

• Model: Chainway UR4 Fixed RFID Reader
• Technology: Passive UHF RFID
• RFID Engine: Based on Impinj E series
• Additional Capability: Support for Impinj Gen2X
• Protocols: EPC Gen 2 and ISO 18000-6C
• Antenna Connectors: Four SMA connectors, each of 50 ohms impedance
• Maximum claimed inventory speed: More than 1,300 tags per second
• Standard Output Power: 5 to 30dBm adjustable
• Optional Output Power: 10 to 33dBm adjustable
• Power Input: DC power from 9V to 12V
• Optional Power: Configurations with PoE and PoE plus
• Case: Aluminum Alloy
• Size: 102.8 mm x 102.8 mm x 28 mm
• Weight: Approx 390 grams without antenna
• Development SDK Available: Windows, Linux, and Android

Warehouse and Logistics Applications

At receiving and dispatch checkpoints the fixed RFID readers identify tagged cartons, pallets and reusable containers. The connected software compares the detected identifiers with the expected shipments and flags any discrepancies for staff review.

In warehouse operations the UR4 supports automated movement records. Enhances inventory visibility. Reliable results come from a well‑designed checkpoint and good integration with the warehouse management system.

Retail and Industrial Applications

The reader is useful for apparel inventory, jewelry monitoring, archives, library systems, laundry tracking, production lines, medical equipment cabinets and vending applications. Every use case needs antennas, tags that match the reader and software that works with the reader.

In retail the reader can spot merchandise that has tags as it passes through a controlled zone. In manufacturing the reader can note materials that move between production stages. RFID observations become business records when software checks and processes them correctly. 

UR4 RFID Reader Price and Availability

Pricing depends on the frequency chosen, the power version selected, the antennas used, the accessories added, the quantity ordered and the scope of integration. Supreme Arc can provide project quotations after Supreme Arc reviews the proposed installation and operational requirements.

Customers who want a Chainway fixed RFID reader can share their application, the expected tag volume, the reading area and the preferred interfaces. This information helps Chainway identify the configuration and the supporting components.

Careful commissioning helps ensure dependable identification across changing daily operational conditions.

Contact Supreme Arc

Supreme Arc helps businesses look at fixed RFID solutions to make sure they can identify things correctly and run operations smoothly. Get in touch with our team to talk about the UR4, the antennas that work with it and what you need to set it up. The different price options for your next project.