آر اف (فرکانس رادیویی) و بی‌سیم ماژول‌ فرستنده‌گیرنده و مودم آر اف

Product Attributes

Introduction

EWD95M-xxxNW22(xxx) is a wireless serial LoRa MESH networking module based on LoRa spread spectrum technology, with a maximum output power of 22dBm, a maximum over-the-air data rate of 62.5K, and a maximum supported baud rate of 460800 bps. The module adopts a new LoRa MESH networking technology, featuring decentralization, self-routing, self-healing network, and multi-level routing. The network uses a decentralized architecture consisting solely of end nodes and routing nodes, requiring no central node or coordinator for management. The network supports CSMA collision avoidance to reduce data collisions, and automatically collects information from surrounding nodes to build a multi-hop communication network; when a link failure occurs, routing nodes re-establish paths after several consecutive communication failures. The network supports four communication modes: unicast, multicast, broadcast, and anycast. Data transmission is encrypted by default using a proprietary algorithm and undergoes multiple verification checks to ensure data privacy, security, reliability, and accuracy.

Features

• Advanced LoRa modulation for long-range, interference-resistant communication, significantly extending MESH network coverage.
• Theoretical network capacity up to 65535 nodes; recommended network size approximately 200 nodes.
• Decentralized architecture consisting solely of end nodes and router nodes — no central node or coordinator required.
• Automatic routing: router nodes autonomously connect to neighboring nodes and determine data transmission paths upon request.
• Self-healing network: upon link failure, router nodes re-establish new paths after several failed communication attempts.
• Multi-hop routing support: router nodes automatically forward data to downstream routers.
• Routing information continuously auto-updated and optimized during data transmission for network stability.
• CSMA collision avoidance mechanism, significantly reducing over-the-air signal collision probability.
• Four communication modes: unicast, multicast, broadcast, and anycast.
• EWD95M-400NW22(xxx) operating frequency range: 410.125 ~ 509.125 MHz, 100 channels, 1 MHz channel spacing.
• EWD95M-900NW22(xxx) operating frequency range: 850.125 ~ 929.125 MHz, 80 channels, 1 MHz channel spacing.
• Multi-layer data verification during transmission for reliable data integrity.
• Proprietary encryption algorithm for secure and private data transmission.
• Combined temporal and spatial network design for high concurrency performance.
• Remote modification of core network communication parameters across the entire network.
• Compatible with E52 series modules.
• Flame-retardant plastic enclosure with DIN rail mounting for easy installation.
• Multiple protection features including reverse polarity protection and antenna surge protection for enhanced reliability.
• Isolated, high-protection design for communication ports and power interfaces.
• Operating temperature range: -40℃ ~ +85℃, suitable for harsh industrial environments.

Applications

• Smart home and industrial sensors
• Wireless alarm security systems
• Building automation solutions
• Smart agriculture
• Smart logistics and warehousing