ACT-IR2012UL is a high-speed USB-to-IrDA adapter used for wireless data transfer between PCs and IrDA-enabled devices like data loggers, PDAs, and industrial instruments. ACT-IR2012UL Driver Support Windows 7 & Older : The adapter features Plug-and-Play (PnP) support using native Windows drivers. Windows 10 & 11
Troubleshooting
| Symptom | Likely Fix | |---------|-------------| | "Device cannot start" (Code 10) | Reinstall driver manually via Device Manager → Update Driver → Have Disk. | | No IR communication | Ensure no other IR device (e.g., laptop built-in IR) is active. Disable in BIOS if needed. | | Driver installs but no COM port | The IR2012UL is not a virtual COM port device; it uses the IrDA stack directly. |
Port Conflicts: Because it is a USB-native IrDA device, it does not occupy standard physical COM or Parallel ports, avoiding IRQ or DMA conflicts. ACT-IR2012UL - ACTiSYS Corporation
The Problem: The ACT-IR2012UL is a rugged USB IrDA (Infrared) dongle, commonly used for industrial equipment, PDAs, or legacy serial replacement. It uses the SigmaTel USB-IrDA chipset. Microsoft dropped built-in support for consumer IR dongles after Windows 7, so plugging it into Windows 10/11 results in:
If you see a yellow exclamation mark in Device Manager with the error "This device cannot start (Code 10)," it usually means your hardware version is not supported by the newest driver.
