Адаптер IrDA-USB (инфракрасный порт) - Яндекс Маркет
In today's world of wireless connectivity, Infrared (IR) technology has been around for quite some time, providing a reliable and efficient means of data transfer between devices. One such device that has gained popularity in recent years is the U2IRDA Mini 4 Mbps FIR USB IrDA 2.0 Portable. This compact and portable device allows users to transfer data between their computers and other IR-enabled devices, making it an ideal solution for those who need to exchange files on the go.
Here is a breakdown of what those specs actually mean and why it is an interesting piece of hardware:
Seamlessly downshifts to MIR (Medium Infrared) at 576 Kbps–1.15 Mbps and SIR (Serial Infrared) at 2.4 Kbps–115.2 Kbps for older hardware. u2irda mini 4 mbps fir usb irda 20 portable
is a highly specialized hardware bridge designed to add high-speed infrared data communication to modern, non-IrDA-enabled computers. While mainstream consumer tech has transitioned to Wi-Fi and Bluetooth, infrared communication remains a critical, interference-free standard across industrial, medical, and legacy consumer environments.
| 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 |
Older generations of fitness trackers (such as early Polar Heart Rate Monitors ). Here is a breakdown of what those specs
| Use Case | Details | |----------|---------| | | Download logs from older oscilloscopes, multimeters, patient monitors (Philips, Siemens) with IR ports. | | Legacy Mobile Sync | Sync contacts/calendar with Palm OS, Windows Mobile 2003/5, Symbian (Nokia Communicator). | | DIY / Retro Computing | Transfer software to vintage laptops lacking USB but having IrDA (ThinkPad 600 series, Toshiba Portégé). | | Point-to-point OT transfer | Direct IR link between two PCs (IrNET) – no cables, no network setup. | | Set-top box / TV programming | Update firmware on older satellite receivers or DVD recorders. |
In the late 90s and early 2000s, before Bluetooth was a household name, the U2IRDA Mini 4 Mbps FIR USB Adapter was the peak of "high-speed" wireless magic.
Effective line-of-sight communication up to 1 meter (approx. 3 feet). | Feature | Specification | | :--- | :--- | | | USB 2
: Typically 1 meter (3.3 feet) line-of-sight according to official standard profiles, though high-gain variants can achieve extended short-range communication.
Understanding the capabilities of this adapter requires looking closer at its performance metrics and standards compliance:
Microsoft officially removed the native Infrared Network Stack starting with Windows 10 (Version 1511). To use the U2IRDA Mini on a modern Windows 10 or 11 system:
[Legacy Device] --(Infrared Signal)--> [U2IrDA Mini] --(USB)--> [PC with Specialized Driver]
Understanding the low-level architecture of the U2IRDA adapter reveals why it remains a dependable tool for technicians, scuba divers, and medical staff alike: