With the 8 Channel Ethernet Relay Controller, managing your IoT (Internet of Things) devices has never been easier. The RLY-8-POE-USB is a high-performance relay module based on STM32, supporting both Power over Ethernet (PoE) and USB control. Ideal for remote switching and centralized power management, this device allows you to control multiple appliances with a single Ethernet cable. It’s perfect for applications such as smart home automation, industrial control, office energy management, underground or unattended systems, street lighting, machine room monitoring, and much more.
Please note: Check PoE compatibility before purchase. The module is compatible with:
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ONV POE31004P
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Tenda TEF1008P
Not compatible with:
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TP-LINK TL-SG3424P
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100-POE4 Industrial Midspan Injector
The latest version now includes JSON protocol support, making it more flexible and developer-friendly.
Key Features
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Open-source communication protocols for developers
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Supports both PoE (Power over Ethernet) and external DC power supply
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Dual control interfaces: Ethernet and RS485
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PC control software included (Windows)
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USB communication protocol is open and documented
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JSON communication support for modern integrations
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Industrial-grade casing for enhanced durability
Technical Specifications
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Microcontroller: STM32
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Power Supply (DC Input): 7~23V DC
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PoE Voltage Range: 44~57V DC
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Relay Channels: 8
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Relay Max Switching Power: 277V AC @10A / 125V AC @12A
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Network Setup: DHCP or Static IP
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Default IP Address: 192.168.1.10 (Port: 2000)
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Control Interfaces: Ethernet / USB / RS485
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Operating Temperature: -30°C to 85°C
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Dimensions: 145mm x 90mm x 40mm (5.7in x 3.5in x 1.6in)
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Weight: 530g
Package Contents
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RLY-8-POE-USB Relay Controller x1
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7.5V 1A Power Adapter x1
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RJ45 Network Cable x1
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USB A-B Cable (Arduino Compatible) x1
Applications
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Home automation
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Hotel and commercial lighting control
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Industrial machinery control
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Retail and surveillance systems
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KTV and entertainment venue management
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Underground pipeline and mining systems
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Remote server room control
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Smart city and street lighting systems