Dual USB Serial Control Board
USB switching and control with 32-bit MCU and FT232RL
Overview
Test fixtures often need to switch or reset a USB path under software control, and doing that with a manual hub or a relay board adds failure points. This board puts the switching and the serial control on one PCB inside the fixture.
The board carries a 32-bit MCU and an FT232RL serial chip, with USB 2.0 at 480 Mbps. It can be powered from the USB bus or from an external DC supply, which matters when the fixture has to keep its state after the host sleeps.
The controlled interfaces include ESD and surge protection, so a fault on the device side does not take out the host controller.
Specifications
Features
- USB switching and serial control on one board inside the fixture
- 32-bit MCU with FT232RL for stable serial enumeration
- USB bus or external DC power, so fixture state survives host sleep
- ESD and surge protection on the controlled side
- USB 2.0 at 480 Mbps
Typical applications
- Fixture USB path switching
- Test system control
- Automated reset and enumeration
Discuss this configuration
Send the device details and the measurement you need to make. We will confirm which specifications are fixed and which need verification on your sample.
Contact engineering
