USB–RS422/RS485 adapter ATEN UC485-AT

The ATEN UC485 USB to RS422/RS485 Adapter (UC485-AT) is an industrial-grade cable adapter that adds an RS-422/RS-485 serial port to a PC or laptop via a USB Type-A connection. The adapter includes a DB-9 terminal interface and a removable terminal adapter for easy wiring. It is powered directly from the USB port and does not require an external power supply. The cable length is 1.2 meters, the unit is RoHS certified and weighs 0.121 kg.

Advantages

This ATEN USB to RS422/RS485 adapter provides plug-and-play connectivity for RS-422 and RS-485 devices using a standard USB Type-A port. Its compact, lightweight design with a 1.2 m cable simplifies installation and portability. The adapter draws power from the USB connection, eliminating the need for additional power adapters. The included terminal adapter and DB-9 connector support straightforward integration with industrial serial equipment.

Suitable for (tasks / use cases)

• Connecting RS-422 or RS-485 industrial devices to a PC or laptop
• Field service and diagnostic work with serial equipment
• Integration of legacy serial instruments into modern USB-only systems
• Factory automation and control system interfaces

Key specifications

• Model: ATEN UC485-AT
• Connectors: USB Type-A to DB-9 (with terminal adapter)
• Cable length: 1.2 m
• Weight: 0.121 kg
• Colour: Black
• Standards: RoHS certified

How to use

Connect the USB Type-A plug to an available USB port on your PC or laptop. Attach the DB-9 connector or the supplied terminal adapter to the RS-422/RS-485 device wiring as required by your installation. The adapter is powered via the USB port and typically requires no external power. Install any necessary drivers if your operating system does not automatically recognise the adapter, then configure the serial port settings (baud rate, parity, stop bits) in your communication software to match the connected device.

Recommendations

For reliable communication, verify grounding and wiring polarity for RS-422/RS-485 lines and use appropriate cable shielding in electrically noisy environments. Ensure correct serial parameters in your software and keep the cable length within recommended system limits for RS-422/RS-485 networks.