工業級 4埠USB2.0集線器(附2A變壓器) (BUH234)

◆ 尺寸：150 x 60 x 22 mm。 ◆ 操作溫度：0°C ~ 70°C。 ◆ 儲存溫度：-55°C ~ 150°C。 Major Specification of MTT USB2.0 Chipset: 1. Fully compliant with Universal Serial Bus Specification Revision 2.0 (USB 2.0); - Upstream facing port supports High-Speed (480MHz) and Full-Speed (12MHz) modes; - 4 downstream facing ports support High-Speed (480MHz), Full-Speed (12MHz), and Low-Speed (1.5MHz) modes; 2. Integrated USB 2.0 Transceivers; 3. Integrated upstream 1.5KΩ pull-up, downstream 15KΩ pull-down, and serial resisters; 4. Integrated 5V to 3.3V and 1.8V regulator. 5. Integrated Power-On-Reset circuit; 6. Integrated 12MHz Oscillator with feedback resister, and crystal load capacitance; 7. Integrated 12MHz-to-480MHz Phase Lock Loop (PLL); 8. Multiple Transaction Translators (MTT) – - One TT for each downstream port; - Alternate Interface 0 for Single-TT, and Alternate Interface 1 for Multiple-TT; - Each TT could handle 64 periodic Start-Split transactions, 32 periodic Complete-Split transactions, and 6 none-periodic transactions; 9. Automatic self-power status monitoring - Automatic re-enumeration when Self-Powered switching to Bus-Powered; 10. Board configured options – - Ganged or Individual Power Control Mode select; - Global or Individual Over-Current Detection Mode select; - Removable or Non-Removable Downstream Devices configuration; 11. Comprehensive Port Indicators support: - Standard downstream port status indicators (Green and Amber LED control for each downstream port); - Hub active LED support;