USB to RS422 / RS485 - Standard

Low-cost standard USB to RS422 / RS485 adapter suitable for most older operating systems and applications, including industrial, commercial and any general office computer device.

This is a bi-directional, (meaning it communicates in both directions), basic and cost-effective converter that lets you connect any RS422 or RS485 device directly to your computer's USB port, efficiently converting USB signals to half-duplex RS485 signals and full-duplex RS422 signals and vice versa.
It is build around the PL-2303HX processor chip from Profilic which is a good all-round processor for general use with most older operating systems, however not recommended for complex systems and applications.

This USB to RS422 / RS485 adapter is powered from the USB port so no external power supply is needed. The RS422 / RS485 end is a standard 9-pin D-sub connector with a optional screw terminal board included for easy connection of cables or single wires.
Automatic send data control is enabled by default so no external flow or handshake control is needed.

Drivers for this USB to RS422 / RS485 adapter are fully compatible with Windows 98Se, ME, 2000, XP, Server 2003, Mac and older versions of Linux but has only limited compatibility with Windows 7 and Vista, (our Pro USB to RS422 / RS485 adapter is optimized and fully compatible with Windows Vista and Windows 7 and 8).

• Compatible with: Windows 98Se, ME, 2000, XP32/64, Server 2003 32/64 and older versions of Mac, Linux
• Limited compatibility with Vista and Windows 7
• Will not work with Windows 8
• No power supply needed, plug and play
• Transmission distance up to 5900 feet at 115200bps
• Fail-safe bias resistors
• Automatic send data control
• Zero delay transmission
• Baud rate auto detection
• 3 feet (1 meter) cable
• No IRQ or other IO conflicts due to processor stability
• Terminal board included with each converter