| Parameter | Specification |
| Model | Ebyte E810-DTU(RS485/232) |
| Core Processor | ARM M0+ 32-bit |
| Serial Interface | RS485 / RS232 |
| Network Interface | RJ45 (10/100Mbps Auto-negotiation) |
| Network Protocols | TCP / UDP / IPv4 / DHCP / DNS |
| Working Modes | TCP Server, TCP Client, UDP Server, UDP Client |
| Operating Temperature | -40°C to +85°C (Industrial Grade) |
| Power Supply | DC 8-28V |
| Baud Rate | 300 ~ 256000 bps |
| Advanced Features | Modbus Gateway, Web Configuration, AT Commands |
| Manufacturer | CDEBYTE |














Application Scenarios
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SCADA & Industrial Automation: In traditional factories, many PLCs (Programmable Logic Controllers) and sensors rely heavily on RS485 communication. By deploying the E810-DTU serial server, the serial data from these legacy devices can be converted into TCP/IP network data in real-time. This allows them to seamlessly connect to a centralized SCADA system for remote monitoring and unified scheduling.
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Outdoor Environmental & Weather Monitoring: Thanks to its industrial-grade wide temperature design (-40°C to +85°C) and protective conformal coating, this device is highly reliable for deployment in outdoor weather stations or water quality monitoring stations. It stably converts RS232/RS485 data collected by various environmental sensors and transmits it to the control center via the local Ethernet network.
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Smart Building & Access Control Systems: In large commercial buildings, the E810-DTU utilizes its TCP Server/Client working modes to transparently transmit signals from RS485 access control card readers or alarm hosts across different floors directly to the central security room. It leverages the building's existing Ethernet infrastructure, eliminating the massive costs of rewiring.
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Smart Weighing & Logistics Warehousing: In logistics sorting centers, truck scales (weighbridges) and industrial barcode scanners typically output RS232 signals. By connecting these devices to the E810-DTU, critical data is instantly uploaded to the enterprise ERP or WMS (Warehouse Management System) database, enabling paperless and fully automated data logging.
FAQ
Q1: Can the E810-DTU operate reliably in extreme temperature environments?
Yes, the E810-DTU is built with industrial-grade components and supports a wide operating temperature range from -40°C to +85°C. This makes it highly reliable for outdoor applications and harsh industrial environments.
Q2: Does this serial server support Modbus protocol conversion?
Absolutely. It features built-in Modbus gateway functionality, enabling smooth conversion between Modbus RTU (serial) and Modbus TCP (network). This allows easy integration of legacy serial devices into modern IP-based automation networks.
Q3: How can I configure the network parameters of the module?
Configuration is simple and versatile. You can configure the module via its user-friendly Web Configuration interface using a standard web browser, or by sending AT commands through the serial port for programmatic setups.
Q4: Does the device support multiple TCP connections simultaneously?
Yes. When configured in TCP Server mode, the E810-DTU supports up to 6 simultaneous TCP Client connections. This feature is perfect for scenarios where multiple control centers or software platforms need to monitor the same sensor data concurrently.
Q5: What power supply range is required for this DTU?
The E810-DTU supports a wide voltage input range of DC 8-28V, which accommodates standard industrial power supplies (such as 12V or 24V DC), ensuring high adaptability in various control cabinets.