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BB-QSU2-400
High-speed USB 2.0, RS-232/422/485 Adapter (USB cable included)

  • Not Recommended For New Installations. Replacement recommendation is Model BB-USR604.
  • Expands one USB port to 4 USB ports (USB 2.0, 1.1 compatible)
  • Data rate: up to 921.6 kbps
  • Desktop-style enclosure, plug-and-play compatibility
  • Bus powering – no external power required
  • High-speed UARTS with 1KB FIFOs boost data rates
  • Enumerates as standard COM port
  • Full modem, hardware and software flow control
  • Software selectable RS-232/422/485
  • USB cable included, 0.9 m (3 ft)
Connect and broaden the range of external peripherals on your computer with this USB 2.0 high speed serial adapter. The USB 2.0 standard has more bandwidth allowing higher data rates on serial ports for greater efficiency. USB 2.0 is fully compatible with USB 1.1 devices. Older devices work with the new bus, and vice versa. This USB serial adapter gives your laptop or workstation the ability to communicate between a USB port and up to four RS-232, RS-422, or RS-485 serial peripherals. The USB serial adapter enumerates itself as a standard COM port via the USB connection and is compatible with new and legacy RS- 232/422/485 devices and the software created for them. The adapter supports data rates up to 921.6 kbps, 1024-byte FIFO and hardware/software flow control. Model QSU2-400 features software-selectable RS-232/422/485 MEI ("Multi-Electrical Interface"). MEI capability is available on all ports at the click of a mouse. LEDs visually tell you which ports are using which protocol – so go ahead, mix and match.features software-selectable RS-232/422/485 MEI ("Multi-Electrical Interface"). MEI capability is available on all ports at the click of a mouse. LEDs visually tell you which ports are using which protocol – so go ahead, mix and match.

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