4-channel RS485 to RJ45 Ethernet Serial Server, 4 channels RS485 with independent operation, industrial isolated serial interface module for DIN rail mounting

Waveshare 26360 — 4-Channel RS485 → Ethernet Serial Server (Industrial Gateway)

4-Channel RS485 to RJ45 Ethernet Serial Server is an industrial isolated module for data acquisition and IoT integration, featuring 4 independent RS485 channels and an Ethernet interface.

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⚙️ Main Purpose

The device is used as a:

• serial server (RS485 ↔ Ethernet)
• Modbus gateway (RTU ↔ TCP)
• MQTT gateway
• RS485 → JSON data gateway
• IoT / industrial data acquisition module

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🔌 Device Versions

• 4-CH RS485 TO ETH (B)
  ✔ Standard Ethernet RJ45
  ✔ DC 6–45V power supply
  ✔ Electrical isolation
• 4-CH RS485 TO POE ETH (B)
  ✔ Ethernet RJ45 with PoE (IEEE 802.3af)
  ✔ or DC 6–45V power supply
  ✔ Electrical isolation

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🚀 Key Features

• 4 independent RS485 channels, operating simultaneously
• bidirectional transparent transmission
• supports:
  • TCP Server / TCP Client
  • UDP / Multicast
  • Virtual COM (VCOM)
• Modbus RTU ↔ Modbus TCP gateway
• MQTT / HTTP / JSON data upload
• multi-host polling support (multiple clients)
• heartbeat / registration packets for cloud systems
• NTP time synchronization

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🧠 Industrial Grade

• galvanic isolation of signal and power
• TVS protection (overvoltage, ESD, pulse interference)
• resettable fuse protection
• stable operation in industrial environments

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🔌 Interfaces

• RS485 × 4 (independent channels)
• Ethernet RJ45 × 1 (10/100M auto-negotiation)
• power supply:
  • DC 6–45V (terminal block)
  • or PoE (PoE version only)

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⚙️ Technical Parameters

• baud rate: 300 – 115200 bps
• data bits: 5–9
• parity: none / odd / even / mark / space
• protocols: TCP/IP, UDP, HTTP, DHCP, DNS, ICMP, ARP
• operating temperature: -40°C ~ +85°C
• enclosure: aluminum, DIN-rail / wall-mount
• dimensions: 91 × 64.5 × 24.2 mm

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📡 Typical Use Cases

• industrial automation (PLCs / sensors)
• Modbus networks (RTU → TCP migration)
• IoT monitoring systems
• energy systems / meters
• remote data acquisition via Ethernet / cloud

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⚠️ Important PoE Clarification

• PoE is optional and only available in a separate version
• the standard version does NOT support PoE
• both versions have the same operational logic; only the power supply differs