What is the QT-2TWUSB dual USB serial control board, and what does it do in a test system?
It is a dual USB serial control board built around a 32-bit MCU and an FT232RL serial chip, used for USB signal switching and control inside a test system. USB 2.0 runs at 480 Mbps, power can come from the USB bus or an external DC supply, and the controlled interfaces carry ESD and surge protection. It typically sits between the industrial PC and the device or fixture, organising the serial paths and controlling their connection state.
Key points
- 32-bit MCU with FT232RL for stable serial enumeration
- 480 Mbps USB 2.0
- USB bus power or external DC, so fixture state survives host sleep
- ESD and surge protection on the controlled side
- Sits between the host PC and the fixture, switching serial paths
Products this applies to
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