ni.com and related services may be unavailable from 8:00 AM to 6:00 PM CDT on August 9, 2025.

Data centers that support ni.com will undergo maintenance, and ni.com will experience downtime. Online shopping, downloading software, logging into your NI User Account, and other services may be intermittently affected during this period.



在USB 2.0的介面下,USB-6501的最大傳輸速率



硬體: Digital I/O (DIO)>>Static>>USB-6501

問題: 我剛購買USB-6501,而它在USB 2.0介面下的最大傳輸速率規格為12Mb/s。根據USB規格,USB1.1介面的最大傳輸速率為12Mb/s,但是USB 2.0的速率則高達480Mb/s。是USB-6501的規格標示錯誤了嗎?為什麼在最大傳輸速率上有這樣的差異?

解答: 不,USB-6501並沒寫錯。它的確可用於USB 2.0全速(12Mb/s)介面。會困惑的原因在於USB 2.0規格提供了三種速度: 高速、全速和低速。USB 2.0全速和低速的傳輸速率和USB 1.1相同或更低。USB1.1允許最大傳輸速率為12Mb/s,這和USB 2.0全速的傳輸速率一樣。因此,若要傳輸速率高達480Mb/s,那麼這裝置必須要能夠相容於USB 2.0的高速介面。

相關連結: USB-6501 Benchmarks with NI-DAQmx

附加檔案:





報告日期: 12/30/2005
最後更新: 12/27/2007
文件偏號: 3ST8G1G4


Products may include a surcharge. Surcharge is calculated during checkout for U.S. customers. Learn more