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Silver aluminium box with four RS485 terminals and USB port

WaveShare

WaveShare Industrial USB to 4Ch RS485 Converter 2 in 1 accessory

SKU CH-6YG1-WX3YZ

Industrial USB to four-channel RS485 converter with TVS surge suppression, resettable fuse, DIP-switchable 120R termination, and rugged aluminium alloy case for wall or rail mounting

  • Four independent RS485 channels enable simultaneous device communication
  • Onboard TVS diodes suppress surges and electrostatic spikes
  • Resettable fuse plus protection diodes guard against over-current and over-voltage
  • 120 Ω termination resistors selectable via DIP switch per channel
  • CNC-machined aluminium alloy case with oxidation dull-polish finish

Four-Channel USB-to-RS485 Adapter for Industrial Use

This WaveShare converter expands a single USB port into four independent RS485 channels, allowing simultaneous communication with multiple field devices. It targets engineers and integrators who need reliable serial connectivity for automation, monitoring or control systems. The aluminium alloy enclosure and built-in protection circuits suit demanding environments where signal integrity matters.

Verify USB Port Availability

Confirm that your host computer has a free USB port and can install the necessary virtual COM-port drivers for your operating system. Check whether your application requires termination resistors; the onboard 120 Ω resistors are selectable via a DIP switch for each channel. Ensure the RS485 wiring distance and baud-rate requirements match the capabilities of your existing cabling and devices.

Rugged Aluminium Case with Flexible Mounting Options

The CNC-machined aluminium alloy housing provides mechanical strength and resists corrosion in industrial settings. Wall-mount and DIN-rail mounting features let you secure the unit inside cabinets or on equipment frames without extra brackets. Surge suppression, a resettable fuse and protection diodes guard each channel against transients and over-current events, reducing downtime caused by electrical noise.

Highlights

  • Four independent RS485 channels enable simultaneous device communication
  • Onboard TVS diodes suppress surges and electrostatic spikes
  • Resettable fuse plus protection diodes guard against over-current and over-voltage
  • 120 Ω termination resistors selectable via DIP switch per channel
  • CNC-machined aluminium alloy case with oxidation dull-polish finish

Specifications

No published specifications for this item yet.

Questions about this item

Does the WaveShare USB to 4Ch RS485 converter ship with any cables or mounting hardware, or must those be purchased separately?

The aluminium alloy case supports both wall-mount and rail-mount installation. No cables or mounting brackets are mentioned in the product details.

The title calls this a 2-in-1 accessory — what are the two functions and how do I decide which one I need?

The device converts a single USB port into four independent RS485 channels, each with a 120-ohm termination resistor selectable by DIP switch. There is only one functional mode: four-channel RS485 conversion.

In a real installation, what does the four-channel RS485 specification actually deliver for industrial equipment?

Each of the four channels can communicate concurrently and independently. Onboard TVS diodes, a resettable fuse and protection diodes guard against surges, over-current and over-voltage conditions.

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