Fully supports Fast Infrared ( FIR ) modes up to 4 Mbps , Medium Infrared (MIR) at 1.15 Mbps, and Serial Infrared ( SIR ) down to 2.4 Kbps.
The U2IRDA Mini 4 Mbps FIR USB IrDA 2.0 Portable has a range of use cases and applications, including:
The adapter uses a USB 1.1 interface, which provides a high-speed connection to the computer. It also has a low power consumption, making it energy-efficient and suitable for use with battery-powered devices.
| Feature | Specification | | :--- | :--- | | | USB 2.0 / 1.1 (Type-A, often with USB-C adapter) | | IrDA Standard | IrPHY 2.0 (supports SIR, MIR, FIR) | | Data Rates | 9.6 kbps, 19.2 kbps, 38.4 kbps, 57.6 kbps, 115.2 kbps (SIR), 0.576 Mbps, 1.152 Mbps (MIR), 4 Mbps (FIR) | | Wavelength | 850 nm – 900 nm (near-infrared) | | Range | 0 to 1 meter (optimal: 5–30 cm) | | Angle | ±15° to ±30° half-angle | | LED Type | High-power IR LED for transmit; PIN photodiode for receive | | Power | Bus-powered (< 150 mA active) | | Form Factor | 50mm x 20mm x 10mm (approx.) | | OS Support | Windows (XP to 11), Linux (with IrDA stack), legacy Windows CE | u2irda mini 4 mbps fir usb irda 20 portable
Popular dive computers from legacy lines like SCUBAPRO and UWATEC use infrared windows to export dive profiles, depth logs, and water temperature data to desktop software like SmartTRAK or LogTRAK. USB to IrDA Infrared Mini Adapter, SIR, MIR, FIR
The U2IRDA Mini 4 Mbps FIR USB IrDA adapter has several technical specifications that make it an efficient and reliable device. It has a transmission distance of up to 1 meter, allowing users to transfer data between devices that are up to 3 feet apart. The adapter also has a high-speed data transfer rate of up to 4 Mbps, making it ideal for transferring large files quickly.
Many classic medical tools—such as blood glucose meters, specialized telemetry equipment, and older Zoll AED devices —rely on IrDA to transmit patient metrics to computers without exposing the devices to modern internet vulnerabilities. 2. SCUBA Dive Computer Data Syncing Fully supports Fast Infrared ( FIR ) modes
Though IrDA is an older technology, the U2IRDA Mini translates these optical pulses into standard serial/network data over a USB 2.0 interface. Most operating systems natively recognize these dongles, providing a frustration-free plug-and-play experience. 3. High Portability
: Typically 1 meter (3.3 feet) line-of-sight according to official standard profiles, though high-gain variants can achieve extended short-range communication.
| Feature | U2IRDA Mini | Generic USB IR (SIR only) | Built-in Laptop IrDA | |---------|-------------|--------------------------|----------------------| | Max Speed | 4 Mbps (FIR) | 115.2 kbps (SIR) | 4 Mbps (if FIR) | | USB interface | Yes | Yes | No (internal bus) | | OS support | Win 7 native; Win 10/11 legacy | Win 10/11 via COM port emulation | Win 98–7 | | Typical price (used) | $15–30 | $5–10 | N/A | | Feature | Specification | | :--- | :--- | | | USB 2
For a stable connection, place the adapter within 1 cm to 100 cm of the target device. The optimal transmission angle is typically within 30° .
: Ultra-portable mini design, often featuring a flexible cable or adjustable head for optimal line-of-sight positioning. Common Use Cases and Applications
The U2IRDA Mini 4 Mbps FIR USB IrDA adapter has several applications in various fields. For example, it can be used in business settings to transfer files between devices quickly and efficiently. It can also be used in healthcare settings to transfer patient data between devices.
