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  2. DOCSIS - Wikipedia

    en.wikipedia.org/wiki/DOCSIS

    Upstream: Upstream data uses QPSK or 16-level QAM (16-QAM) for DOCSIS 1.x, while QPSK, 8-QAM, 16-QAM, 32-QAM, and 64-QAM are used for DOCSIS 2.0 and 3.0. DOCSIS 2.0 and 3.0 also support 128-QAM with trellis coded modulation in S-CDMA mode (with an effective spectral efficiency equivalent to that of 64-QAM). DOCSIS 3.1 supports data modulations ...

  3. Point-to-Point Protocol over ATM - Wikipedia

    en.wikipedia.org/wiki/Point-to-Point_Protocol...

    In computer networking, the Point-to-Point Protocol over ATM (PPPoA) is a layer 2 data-link protocol typically used to connect domestic broadband modems to ISPs via phone lines. It is used mainly with DOCSIS and DSL carriers, by encapsulating PPP frames in ATM AAL5. Point-to-Point Protocol over Asynchronous Transfer Mode (PPPoA) is specified by ...

  4. Cable modem - Wikipedia

    en.wikipedia.org/wiki/Cable_modem

    Virtually all cable modems operating in the field today are compliant with one of the DOCSIS versions. Because of the differences in the European PAL and US's NTSC systems two main versions of DOCSIS exist, DOCSIS and EuroDOCSIS. The main differences are found in the width of RF-channels: 6 MHz for the US and 8 MHz for Europe.

  5. Point-to-Point Protocol over Ethernet - Wikipedia

    en.wikipedia.org/wiki/Point-to-Point_Protocol...

    The Point-to-Point Protocol over Ethernet (PPPoE) is a network protocol for encapsulating Point-to-Point Protocol (PPP) frames inside Ethernet frames. It appeared in 1999, in the context of the boom of DSL as the solution for tunneling packets over the DSL connection to the ISP's IP network, and from there to the rest of the Internet.

  6. Cable Internet access - Wikipedia

    en.wikipedia.org/wiki/Cable_Internet_access

    If the HFC network is large, the cable modem termination system can be grouped into hubs for efficient management. Several standards have been used for cable internet, but the most common is DOCSIS. [1] A cable modem at the customer is connected via coaxial cable to an optical node, and thus into an HFC network.

  7. DOCSIS Set-top Gateway - Wikipedia

    en.wikipedia.org/wiki/DOCSIS_Set-top_Gateway

    DOCSIS Set-top Gateway (or DSG) is a specification describing how out-of-band data is delivered to a cable set-top box. Cable set-top boxes need a reliable source of out of band data for information such as program guides, channel lineups, and updated code images.

  8. Some hospitals seeing increase in RSV, 'walking pneumonia ...

    www.aol.com/hospitals-seeing-increase-rsv...

    For the week ending Nov. 2, the latest for which CDC data is available, 2.8% of all pneumonia-associated ED visits led to an M. pneumoniae diagnosis, up from just 2% at the end of September.

  9. List of interface bit rates - Wikipedia

    en.wikipedia.org/wiki/List_of_interface_bit_rates

    This is a list of interface bit rates, is a measure of information transfer rates, or digital bandwidth capacity, at which digital interfaces in a computer or network can communicate over various kinds of buses and channels.

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