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What are public USB ports on a CommBox screen?

Public USB ports allow you to share connected devices like touch input or cameras between your CommBox screen and an external device at the same time.

Applies To

All CommBox interactive screens with USB-C or USB-A public port functionality

Step-by-Step Explanation

What is a public USB port?

  • A public USB port is a USB input on your CommBox that connects to both the CommBox system (like Android or OPS) and a connected external device (such as a laptop).

  • This allows shared access to devices like touch input, cameras, or USB drives.

How it works

  • When you plug a USB device (e.g. a webcam, USB drive, or touch accessory) into a public USB port, both the built-in CommBox system and your connected laptop (via USB touch cable) can interact with it.

  • It’s designed to make transitions seamless when switching between Android, OPS, or external devices.

💡 Tip: Use public USB ports when you need plug-and-play access for multiple systems without needing to replug devices.

Troubleshooting / What to Do If It Doesn’t Work

  • Make sure the laptop is connected using both HDMI (or USB-C) and USB touch cable.

  • If the USB device isn’t detected, try unplugging and reconnecting it or test it in another USB port.