USB to Serial RS422/485 Converter Adapter - Systembase BASSO-1010UC

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  • Regular price $29.95

The Systembase BASSO-1010UC USB to serial converter enables easy and fast installation of serial communications ports using a USB bus. Equipped with USB 2.0, it supports serial communication speed up to 921.6Kbps and ±15kV surge protection providing compatibility and reliability. An LED showing serial communication status provides a quick visual status in addition to debugging purposes. The BASSO-1010UC supports the serial communications RS-422/RS-485 interface and is designed for use in R&D, laboratory, building and factory automation, and other industrial, laboratory and research applications.


  • USB to 1-port RS-422/485 Serial Converter
  • Latching USB Cable
  • Supports USB 2.0
  • Maximum Communication Speed: 921.6kbps
  • RS-422/485 Auto Toggling by Hardware
  • Slew-Rate Limit Control
  • Built-in ±15kV Surge Protection

Latching USB Cable

The BASSO-1010UC's Latching USB Cable has latches on the USB connector to prevent accidental detachment. It is compatible with existing USB 2.0 connectors.

Auto Toggling

BASSO-1010UC has a built-in hardware feature that performs automatic toggling to prevent devices from sending data simultaneously causing a crash. This function prevents the RS-422 from forming a multi-drop network or crashing between output signals on the RS-485 network. This function is provided through the hardware, therefore setting the interface mode with a switch enables auto-toggling for each interface.

Slew-Rate Limit Control

The BASSO-1010UC has a slew rate limiting function that inhibits electromagnetic emissions when communicating in RS-422/RS-485 interface. When this function is activated, the maximum communication speed is limited to 250Kbps. However, this function prevents equipment from malfunctioning in electromagnetic-sensitive environments such as hospitals and laboratories.

BASSO-1010UC USB to Serial Converter Specifications:

Interface Type

  • Specification: USB Specification Rev. 2.0, Full-Speed


  •  Interface: RS422/485(Terminal Block)
  • Number of ports: 1
  • Connector: DE-09P (DB-9 Male)
  • Maximum Speed: 921.6 kbps
  • Signal Lines:
    • RS422: TXD+, TXD-, RXD+, RXD-
    • RS485: TRXD+, TRXD-
  • Surge Protection:
    • 400W Pulse Surge Protection (10/1000µs)
    • 15kV ESD Protection
  • Dip Switch:
    • RS422/485 Selectable
    • Termination Resistor Selectable
    • Slew Rate Selectable


  • Dimensions: (W x L x H): 3.13 x 1.58 x 0.89 inches (79.45 x 40.0 x 22.6mm)
  • Weight: 49g / 1.73oz


  • Supported OS:
    • Windows 7 or above
    • Windows Server 2008/2012
    • Automatically detects Linux 2.6 or above
  • Controller: FT232R
  • Utility: TestView

Operating Environment

  • Operating Temperature: -40~+85 C
  • Storing Temperature: -40~+85 C
  • Humidity: 5~95% Non-Condensing


  • Certificates: CE, FCC

Package Includes:

1X SystemBase BASSO-1010UC USB to Serial RS422/485 Converter/Adapter,
Download Guide, Warranty Policy

Additional Resources:

BASSO-1010UC USB to Serial Converter Manual, Utilities and Specifications Downloads (SystemBase Website)