This report introduces Xilinx® Alveo™ UltraScale™ Data Center Accelerator Card (U250), the first accelerator card based on Xilinx 7nm UltraScale+® FPGA technology, delivering 500Gbps of acceleration throughput. U250 accelerator card provides data centers with extreme acceleration performance to accelerate various key applications, including streaming, databases and AI.
This manual covers the Chiayo IWA-200 and IWA-220 infrared wireless microphone systems. It includes safety precautions, installation steps for wall‑mounted or ceiling‑mounted receivers, and detailed descriptions of each component and control.
Instructions for charging the built‑in battery, switching between the two frequency channels, adjusting volume and tone, and connecting external audio sources are provided, along with warranty information and recommended battery maintenance. This manual is written in Chinese.
| Channel A frequency | 2.08 MHz |
|---|---|
| Channel B frequency | 2.54 MHz |
| Battery capacity | 2600 mAh / 1.2 V |
| Charging time | ≈5 hours |
| Maximum simultaneous receivers | 3 |
Charging takes about five hours.
It uses a 2600 mAh, 1.2 V rechargeable battery.
Two channels are available: Channel A at 2.08 MHz and Channel B at 2.54 MHz.