BCS BCS-U-DA USB 2.0 to RS-485/422 Serial Adapter with Screw Terminal

The BCS BCS-U-DA is a high-performance USB 2.0 to RS-485/422 serial adapter designed for industrial and commercial applications. It provides a reliable, isolated interface between a USB host and RS-485 or RS-422 serial devices, supporting data rates up to 921.6 Kbps. With galvanic isolation of 2500V and robust surge protection, this adapter ensures safe and stable communication in demanding environments.

Advantages

This adapter offers true plug-and-play connectivity with automatic data direction control for RS-485 half-duplex operation. Its compact, desktop-friendly design and screw terminal connector simplify wiring, while the FTDI FT232RL chipset ensures broad OS compatibility and long-term driver support. The built-in isolation and ESD protection safeguard your equipment from voltage spikes and ground loops.

Suitable for

• Industrial automation and control systems
• Building management and HVAC networks
• Point-of-sale and ticketing systems
• Remote data acquisition and monitoring
• Laboratory and test equipment integration

Key specifications

• Interface: USB 2.0 Type-A Male to 5-pin Screw Terminal Block
• Serial Standards: RS-485 (2-wire half-duplex) and RS-422 (4-wire full-duplex)
• Data Rate: Up to 921.6 Kbps
• Galvanic Isolation: 2500V
• ESD Protection: 15kV
• Surge Protection: 600W
• Chipset: FTDI FT232RL
• Power Source: USB bus-powered
• LED Indicators: Power, Tx, Rx
• Operating Temperature: -20°C to 70°C
• Housing Material: ABS plastic
• Transmission Distance: Up to 1.2 km

Recommendations

For optimal performance, use twisted-pair cable for RS-485/422 connections and ensure proper termination. This adapter is compatible with Windows, Linux, and macOS. No external power supply required.