USOPTL4-2P - USB to Isolated serial 2 port RS-422/485 w/TB
by Advantech/ B+B Smartworx

Connect RS-422 and RS-485 (2-Wire and 4-Wire) devices to a USB port and gain 2000 V RMS Isolation from voltage spikes and ground loops. Universal Serial Bus (USB) has become the connectivity workhorse of today’s PCs, replacing the familiar serial ports. However, many commercial and industrial devices still use the RS-422/485 interface. To connect these devices to modern PCs and provide protection from electrical transients, you need a simple and reliable conversion solution.

The USOPTL4-2P and USOPTL4-4P offer this solution and are great for any application that requires long range or multi-drop capabilities. Both models offer a high retention USB interface, removable terminal blocks on the serial side and have LED’s to indicate data flow. Simply plug the converter into an available USB port on your computer or USB hub and install the drivers supplied on CD ROM. The device will show up as additional COM ports in the Windows Device Manager, which are fully compatible with your Windows applications. A one meter USB cable is included.

• High retention USB connectors offer minium withdrawal strength of 15 Newtons
• Add two or four COM ports to your USB PC
• LEDs on transmit and receive lines
• USB 1.0, 1.1, and 2.0 compatible (12 Mbps)
• Automatic configuration on Windows 98, ME, 2000, XP, Vista and 7
• No power supply required (powered from USB bus)
• -P models can be bus powered or externally powered
  Recommended external power supplies
  12DC1AST - 12VDC@1000ma Strip & Tin Power Supply, Wall Transformer
  MDR-20-24 - 24VDC, 1.0 A output power DIN rail mount power supply
• Includes 1 meter USB cable 

RS-422/485 USB/serial converter unique features

• Pluggable terminal blocks
• Supports TDA, TDB, RDA, RDB, GND
• Baud rates up to 921 Kbps
• Use on RS-485 2-wire or RS-422/485 4-wire networks
• Supports Send Data Control (SDC)