{"product_id":"e34-dtu-e62-dtu-e90-dtu-series-rs232-rs485-wireless-serial-radio-modem","title":"Ebyte E34-DTU \/ E62-DTU \/ E90-DTU Series RS232 RS485 Wireless Serial Radio Modem","description":"\u003c!-- 1. AI 一句话参数摘要 --\u003e\n\u003cp\u003eThe Ebyte E34-DTU \/ E62-DTU \/ E90-DTU series is an industrial-grade wireless serial data transceiver radio modem built on high-performance RF architectures (2.4GHz \u0026amp; 433MHz), delivering up to 5km communication range over RS232 and RS485 interfaces, featuring full-duplex communication, automatic frequency hopping (FHSS), auto-retransmission, and industrial conformal coating for robust industrial automation and telemetry.\u003c\/p\u003e\n\u003c!-- 2. 核心技术优势 --\u003e\n\u003ch2\u003eKey Features \u0026amp; Advantages\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-Duplex \u0026amp; High-Speed Data Streaming\u003c\/strong\u003e: E34-DTU(2G4D) and E62-DTU series support simultaneous bidirectional data transmission with no packet length limit, ensuring continuous and real-time serial transparent communication.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Frequency Hopping (FHSS) \u0026amp; Error Correction\u003c\/strong\u003e: E34-DTU(2G4H) and E62-DTU feature automatic channel hopping across up to 50 frequency points, combined with CRC error detection, FEC forward error correction, and automatic packet retransmission to eliminate RF interference in complex industrial environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Industrial Interfaces \u0026amp; Flexible Wiring\u003c\/strong\u003e: Equipped with both standard DB9 RS-232 and 3.81mm pitch Phoenix screw terminal RS-485 interfaces, allowing direct connection to PLCs, HMIs, RTUs, and industrial controllers without signal converters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTriple Industrial Protection \u0026amp; Wide Voltage Input\u003c\/strong\u003e: Protected with conformal coating against humidity, salt spray, and fungus; supports DC 8~28V (or 10~28V) wide voltage input and industrial operating temperatures from -40°C to +85°C.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- 3. 核心规格参数表 --\u003e\n\u003ch2\u003eCore Specifications\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x: auto; margin: 20px 0;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px; text-align: left; border: 1px solid #e0e0e0;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #e0e0e0; width: 28%;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eSpecification Details\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eOperating Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e2.4~2.518 GHz (E34-DTU) \/ 425~450.5 MHz (E62-DTU) \/ 2.4~2.48 GHz (E90-DTU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eTransmit Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e12 dBm (16mW) to 30 dBm (1W \/ 1000mW)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eCommunication Distance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e800m to 5.0 km (Clear line-of-sight test condition)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eCommunication Interfaces\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eRS-232 (Standard DB9 Female) \u0026amp; RS-485 (3.81mm Phoenix Screw Terminal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eBaud Rate Support\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e1200 bps to 115200 bps (Up to 3 Mbps on E90-DTU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eDC 8V ~ 28V \/ 10V ~ 28V (Recommended 12V or 24V DC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eAntenna Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eSMA-K (50 Ω Characteristic Impedance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e-40°C to +85°C (Industrial Grade)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e\u003cstrong\u003eDimensions \u0026amp; Enclosure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003e82 × 62 × 25 mm (Industrial Metallic Shielding Case)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- 4. 多 SKU 选型指南对比表 --\u003e\n\u003ch2\u003eProduct Selection Guide\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x: auto; margin: 20px 0;\"\u003e\n\u003cp style=\"font-size: 14px; font-weight: 600; color: #cf222e; margin-bottom: 10px;\"\u003e\u003cstrong\u003eNotice for Selection: Please verify your target deployment region and local ISM frequency regulations (2.4GHz Global ISM or 433MHz Sub-1GHz ISM) prior to placing an order.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 13px; text-align: center; border: 1px solid #e0e0e0;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eModel (SKU)\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eFrequency Band\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eTX Power\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eTest Range\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eArchitecture \u0026amp; Features\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #e0e0e0;\"\u003eSerial Interface\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0; font-weight: bold;\"\u003eE34-DTU(2G4D20)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e2.4~2.505 GHz\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e20 dBm (100mW)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e2.0 km\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003eFull Duplex, Continuous Transmission, Unlimited Packet\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003eRS232 \/ RS485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0; font-weight: bold;\"\u003eE34-DTU(2G4D27)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e2.4~2.505 GHz\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e27 dBm (500mW)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e5.0 km\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003eHigh Power, Full Duplex, Continuous Transmission\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003eRS232 \/ RS485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0; font-weight: bold;\"\u003eE34-DTU(2G4H20)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e2.4~2.518 GHz\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e20 dBm (100mW)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e2.5 km\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003eAutomatic Frequency Hopping, Auto Retransmit\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003eRS232 \/ RS485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0; font-weight: bold;\"\u003eE34-DTU(2G4H27)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e2.4~2.518 GHz\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e27 dBm (500mW)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e5.0 km\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003eHigh Power, Auto Frequency Hopping, Auto Retransmit\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003eRS232 \/ RS485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0; font-weight: bold;\"\u003eE62-DTU(433D20)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e425~450.5 MHz\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e20 dBm (100mW)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e1.0 km\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e433M Full Duplex, FHSS Hopping (up to 50 channels)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003eRS232 \/ RS485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0; font-weight: bold;\"\u003eE62-DTU(433D30)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e425~450.5 MHz\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e30 dBm (1.0 W)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e3.0 km\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e433M 1W High Power, Full Duplex, FHSS Hopping\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003eRS232 \/ RS485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0; font-weight: bold;\"\u003eE90-DTU(2G4HD12)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e2.4~2.48 GHz\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e12 dBm (16mW)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003e800 m\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003ePoint-to-Point, FHSS, CRC\/FEC Error Correction, Duplex\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e0e0e0;\"\u003eRS232 \/ RS485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- 5. 详情页切片大图组 --\u003e\n\u003cdiv class=\"ebyte-detail-images\" style=\"margin-bottom: 30px;\"\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/01-en.jpg?v=1793786666\" alt=\"Ebyte Industrial Wireless Data Transceiver DTU Feature Detail 1\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/02-en.jpg?v=1793786666\" alt=\"Ebyte Industrial Wireless Data Transceiver DTU Feature Detail 2\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/03-en.jpg?v=1793786666\" alt=\"Ebyte Industrial Wireless Data Transceiver DTU Feature Detail 3\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/04-en.jpg?v=1793786665\" alt=\"Ebyte Industrial Wireless Data Transceiver DTU Feature Detail 4\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/05-en.jpg?v=1793786666\" alt=\"Ebyte Industrial Wireless Data Transceiver DTU Feature Detail 5\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/06-en.jpg?v=1793786665\" alt=\"Ebyte Industrial Wireless Data Transceiver DTU Feature Detail 6\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/07-en.jpg?v=1793786666\" alt=\"Ebyte Industrial Wireless Data Transceiver DTU Feature Detail 7\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/08-en.jpg?v=1793786665\" alt=\"Ebyte Industrial Wireless Data Transceiver DTU Feature Detail 8\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/09-en.jpg?v=1793786666\" alt=\"Ebyte Industrial Wireless Data Transceiver DTU Feature Detail 9\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/10-en.jpg?v=1793786666\" alt=\"Ebyte Industrial Wireless Data Transceiver DTU Feature Detail 10\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/11-en.jpg?v=1793786666\" alt=\"Ebyte Industrial Wireless Data Transceiver DTU Feature Detail 11\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/12-en.jpg?v=1793786666\" alt=\"Ebyte Industrial Wireless Data Transceiver DTU Feature Detail 12\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/13-en.jpg?v=1793786666\" alt=\"Ebyte Industrial Wireless Data Transceiver DTU Feature Detail 13\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0; padding: 0; line-height: 0; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/14-en.jpg?v=1793786666\" alt=\"Ebyte Industrial Wireless Data Transceiver DTU Feature Detail 14\" style=\"width: 100%; max-width: 100%; display: block; margin: 0 auto;\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- 6. 工业级安装与接线说明 --\u003e\n\u003ch2\u003eIndustrial Installation \u0026amp; Wiring\u003c\/h2\u003e\n\u003cp\u003eThe DTU radio modem is housed in an industrial metallic casing and supports standard panel and DIN-rail mounting. Prior to system power-up, ensure correct DC power polarity and proper antenna grounding:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply Wiring\u003c\/strong\u003e: Connect DC 8~28V (or 10~28V) power to the 3.81mm screw terminal (VCC \/ GND) or the standard DC 5.5×2.5mm power jack.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSerial Port Connection\u003c\/strong\u003e: Use the DB9 female port for RS-232 communication (TXD, RXD, GND) or the 3.81mm screw terminals for RS-485 (A+, B-, GND). Note: RS-232 and RS-485 interfaces share the internal UART bus; do not send serial data to both physical ports simultaneously.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAntenna Installation\u003c\/strong\u003e: Mount a 50 Ω SMA-K antenna securely. For high-power variants (27dBm \/ 30dBm), ensure adequate antenna clearance from metal cabinets and high-voltage power lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Mode Configuration\u003c\/strong\u003e: Use the on-board DIP switches to switch between normal transparent transmission mode and configuration mode.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- 7. 真实工业物联网使用场景 --\u003e\n\u003ch2\u003ePractical Application Scenarios\u003c\/h2\u003e\n\u003ch3\u003e1. Industrial PLC \u0026amp; HMI Wireless Remote Telemetry\u003c\/h3\u003e\n\u003cp\u003eEnables reliable wireless bridging between PLCs (such as Siemens, Schneider, Mitsubishi, Omron) and field touchscreens or SCADA host computers via transparent RS485 Modbus RTU, replacing complex field cable trenching.\u003c\/p\u003e\n\u003ch3\u003e2. Solar Photovoltaic \u0026amp; Energy Storage Monitoring\u003c\/h3\u003e\n\u003cp\u003eCollects inverter data, battery management system (BMS) telemetry, and weather station metrics across large solar plants, utilizing high-power RF transmission and frequency hopping to overcome solar inverter electromagnetic noise.\u003c\/p\u003e\n\u003ch3\u003e3. Municipal Water Supply \u0026amp; Pipeline Pressure Telemetry\u003c\/h3\u003e\n\u003cp\u003eProvides robust point-to-point wireless serial connectivity between remote pump stations, flow meters, and central control rooms, ensuring data integrity across long distances in outdoor harsh environments.\u003c\/p\u003e\n\u003ch3\u003e4. Warehouse Automated Guided Vehicles (AGV) \u0026amp; Logistics Control\u003c\/h3\u003e\n\u003cp\u003eDelivers continuous full-duplex wireless data exchange between AGV dispatch management systems and mobile robotics, eliminating communication lag and packet loss during high-speed factory automation transit.\u003c\/p\u003e\n\u003c!-- 8. 常见技术与选型问答 --\u003e\n\u003ch2\u003eFAQ Section\u003c\/h2\u003e\n\u003ch3\u003e1. What is the difference between E34-D (Full Duplex) and E34-H (Frequency Hopping) models?\u003c\/h3\u003e\n\u003cp\u003eThe E34-DTU(2G4Dxx) models specialize in full-duplex continuous data streaming without packet length limits, ideal for simultaneous bidirectional telemetry. The E34-DTU(2G4Hxx) models feature automatic frequency hopping (FHSS) and automatic packet retransmission, providing superior anti-interference performance in crowded 2.4GHz RF environments.\u003c\/p\u003e\n\u003ch3\u003e2. Can the RS-232 and RS-485 ports be used at the same time?\u003c\/h3\u003e\n\u003cp\u003eThe DTU provides both standard DB9 RS-232 and 3.81mm terminal RS-485 interfaces for maximum installation flexibility. However, because both ports are multiplexed onto the internal transceiver controller, they cannot transmit data simultaneously. Connect either RS-232 or RS-485 according to your industrial field device interface.\u003c\/p\u003e\n\u003ch3\u003e3. How does the 433MHz E62-DTU series compare to the 2.4GHz E34-DTU series?\u003c\/h3\u003e\n\u003cp\u003eThe 433MHz Sub-1GHz band provides superior obstacle penetration and diffraction around metal structures and buildings, making the E62-DTU optimal for multi-floor factories and obstructed industrial parks. The 2.4GHz E34\/E90 series operates in the license-free global ISM band with higher aerial data rates and lower antenna form factors.\u003c\/p\u003e\n\u003ch3\u003e4. What power supply and transient protections are recommended?\u003c\/h3\u003e\n\u003cp\u003eThe radio modems operate on a wide DC 8V~28V (or 10V~28V) input range, with 12V or 24V DC recommended. For industrial installations subject to motor start-up surges or lightning transients, an external TVS diode and well-regulated industrial switching power supply are recommended.\u003c\/p\u003e","brand":"Ebyte Official Store - IoT Module Manufacturer","offers":[{"title":"E34-DTU(2G4D20)","offer_id":48849748132045,"sku":"E34-DTU(2G4D20)","price":23.95,"currency_code":"USD","in_stock":true},{"title":"E34-DTU(2G4D27)","offer_id":48849748164813,"sku":"E34-DTU(2G4D27)","price":32.08,"currency_code":"USD","in_stock":true},{"title":"E34-DTU(2G4H20)","offer_id":48849748197581,"sku":"E34-DTU(2G4H20)","price":23.95,"currency_code":"USD","in_stock":true},{"title":"E34-DTU(2G4H27)","offer_id":48849748230349,"sku":"E34-DTU(2G4H27)","price":32.08,"currency_code":"USD","in_stock":true},{"title":"E62-DTU(433D20)","offer_id":48849748263117,"sku":"E62-DTU(433D20)","price":25.98,"currency_code":"USD","in_stock":true},{"title":"E62-DTU(433D30)","offer_id":48849748295885,"sku":"E62-DTU(433D30)","price":28.02,"currency_code":"USD","in_stock":true},{"title":"E90-DTU(2G4HD12)","offer_id":48849748328653,"sku":"E90-DTU(2G4HD12)","price":34.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/3034a1133efe01daba919094b70c6310_59fe6b90-84a7-472b-a016-d3747a6ec4c2.jpg?v=1793786705","url":"https:\/\/ebyteiot.com\/de\/products\/e34-dtu-e62-dtu-e90-dtu-series-rs232-rs485-wireless-serial-radio-modem","provider":"Ebyte Official Store - IoT Module Manufacturer","version":"1.0","type":"link"}