<h1>RFID Card Reader: A Comprehensive Guide to Technology and Applications</h1> <h2>Understanding RFID Card Reader Technology</h2> An <strong>RFID card reader</strong> is a device that uses radio frequency identification to wirelessly read and sometimes write data to tags or cards. In my personal experience working with access control systems, the transition from magnetic stripes to <strong>RFID card readers</strong> was a game-changer in terms of reliability and speed. My natural aptitude for troubleshooting electronic systems allowed me to quickly master the configuration of various <strong>RFID card reader</strong> models, from simple 125 kHz units to more complex 13.56 MHz HF readers. I hold the opinion that for most secure physical access applications, a well-configured <strong>RFID card reader</strong> offers the optimal balance of security, cost, and user convenience. <h3>Technical Specifications and Parameters</h3> <h4>Detailed Technical Indicators for a Standard UHF RFID Card Reader Module</h4> Providing precise technical data is crucial for integration. Below are the detailed parameters for a typical industrial UHF <strong>RFID card reader</strong> module. *Please note: These technical parameters are for reference data only; specifics need to contact back-end management.* * **Operating Frequency:** 860 MHz ~ 960 MHz (adjustable, compliant with regional regulations like ETSI EN 302 208, FCC Part 15). * **Communication Interface:** RS-232, RS-485, TCP/IP (Ethernet), Wiegand 26/34-bit output. * **RF Power Output:** 0 dBm to 30 dBm (adjustable in software). * **Reading Distance:** Up to 12 meters for passive UHF tags (dependent on tag and antenna). * **Anti-collision Algorithm:** Capable of reading over 200 tags per second. * **Primary Control Chip:** Impinj R2000 or R420 reader chipset. * **Dimensions (Main Module):** 120mm (L) x 90mm (W) x 25mm (H). * **Power Supply:** 9-12 VDC, typical operating current 1.2A. * **Operating Temperature:** -20°C to +65°C. * **Supported Protocols:** EPCglobal UHF Class 1 Gen 2 / ISO 18000-6C. For projects requiring this