现有的宽带接入方法主要有光纤接入、CableModem~、DSL、DDN、无线网络和DirectPC等。其间，数字用户线DSL(DigitalSubscriberLine)4~lL术包括HDSL、SDSL、IDSL、ADSL等技术。而ADSL(AsymmetricaJ嘲talSubscriberLine。非对称数字用户线)不需要改遣现有的线路就可以享用宽带上网的服务，所

(Existing broadband access methods mainly include optical fiber access, CableModem~, DSL, DDN, wireless network and DirectPC. Meanwhile, digital subscriber line DSL (Digital Subscriber Line) 4~1L technologies include technologies such as HDSL, SDSL, IDSL, and ADSL. And ADSL (AsymmetricaJ mock talSubscriberLine. Asymmetric Digital Subscriber Line) can enjoy broadband Internet service without changing the existing line, so)

[下载]16301257026.rar

2022-7-28 16:30 上传

文件大小: 165 KB
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现有的宽带接入方法主要有光纤接入、CableModem~、DSL、DDN、无线网络和DirectPC等。其间，数字用户线DSL(DigitalSubscriberLine)4~lL术包括HDSL、SDSL、IDSL、ADSL等技术。而ADSL(AsymmetricaJ嘲talSubscriberLine。非对称数字用户线)不需要改遣现有的线路就可以享用宽带上网的服务，所

(Existing broadband access methods mainly include optical fiber access, CableModem~, DSL, DDN, wireless network and DirectPC. Meanwhile, digital subscriber line DSL (Digital Subscriber Line) 4~1L technologies include technologies such as HDSL, SDSL, IDSL, and ADSL. And ADSL (AsymmetricaJ mock talSubscriberLine. Asymmetric Digital Subscriber Line) can enjoy broadband Internet service without changing the existing line, so)

[下载]16301257026.rar

2022-7-28 16:30 上传

文件大小: 165 KB
下载次数: 0