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Introduction

Thank you for your purchase of the USB to serial adapter. Featuring USB (Universal Serial Bus) interface technology, it is converted the USB to RS-232 or industrial RS422/485, so it can be easily adopted for industrial machines with RS232 or RS422/485 interfaces. The USB to Serial converter is fully compatible with the USB V1.0￿2.0 . This converter is USB bus powered and does not need any power adapter. You can connect a PC USB port or USB hub to this converter via USB cable and High-Speed RS-232/422/485 serial port (Auto-Detection) which features easy connectivity for traditional serial devices in your working environments.

The RS232 standard supports handshaking signals (such as RTS, CTS) and full-duplex communication. For the RS485 control, it is completely transparent to user and their software written for Half-Duplex COM works without any extra modification effort.

The USB to Serial Isolated Converter meets the industrial level as it provides 3000 VDC of isolation to protect the host computer or other connected equipments from ground loops and destructive voltage spikes on the RS-232/422/485 data lines. It also offers internal surge-protection on data lines. Internal high-speed transient suppressors on each data line to protect it from dangerous voltages levels or spikes.

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Quatech SSU2-400I operation manual Introduction