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Compact industrial module with dual RJ45 ports and dual RS485 terminals, metal rail-mount enclosure

WaveShare

WaveShare 2-CH RS485 to RJ45 Ethernet Serial Server PoE 2 in 1 accessory

SKU CH-B0GJ-775DE

Dual isolated RS485 channels connect to 10/100M Ethernet with PoE and 6–45V DC power options for industrial serial networking

  • Dual RS485 channels operate simultaneously without interference
  • Two Ethernet ports enable cascade and device communication
  • PoE support plus DC 6–45 V input options
  • Modbus gateway and MQTT gateway functions built in
  • Power and signal isolation protect industrial equipment

Dual RS485 to Ethernet bridge

The WaveShare module converts two independent RS485 channels to dual Ethernet ports with IEEE 802.3af PoE support. It targets engineers who need transparent bi-directional data transmission between legacy serial equipment and modern IP networks in industrial settings.

Rail-mount design with cascaded Ethernet

The unit mounts on DIN rail and provides two RJ45 ports that can operate as independent network links or be cascaded to extend the local network. Power can be drawn from PoE, a 5.5 mm DC jack accepting 6 to 45 V, or the screw terminal block, removing the need for a separate supply in many cabinets.

300 to 115200 bps with isolation

Each isolated RS485 channel handles 5 to 9 data bits and all common parity options at standard baud rates up to 115200 bps. The gateway supports Modbus, MQTT and JSON conversion for up to 100 Mbit Ethernet links, but it does not offer flow control or fibre interfaces for longer-distance backbone connections.

Highlights

  • Dual RS485 channels operate simultaneously without interference
  • Two Ethernet ports enable cascade and device communication
  • PoE support plus DC 6–45 V input options
  • Modbus gateway and MQTT gateway functions built in
  • Power and signal isolation protect industrial equipment

Specifications

No published specifications for this item yet.

Questions about this item

What is the maximum baud rate the RS485 ports can sustain continuously?

Each isolated RS485 channel supports up to 115200 bps and can transmit and receive simultaneously without interference.

How much power does the module draw when powered via PoE all day?

It complies with IEEE 802.3af PoE, drawing up to 10 W through the RJ45 port while providing 2 kV surge protection.

Which power connectors must I have on site for the DC input option?

You need a 5.5 mm DC barrel jack or the screw terminal block that accepts 6 to 45 V DC.

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