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A DOCSIS 3.0 cable modem A cable modem termination system (CMTS) A DOCSIS architecture includes two primary components: a cable modem located at the customer premises, and a cable modem termination system (CMTS) located at the CATV headend. [28] The customer PC and associated peripherals are termed customer-premises equipment (CPE). The CPE are ...
Uncapping, in the context of cable modems, refers to a number of activities performed to alter an Internet service provider's modem settings. It is sometimes done for the sake of bandwidth (i.e. by buying a 512 kbit/s access modem and then altering it to 10 Mbit/s), pluggable interfaces (as by using more than one public ID), or any configurable options a DOCSIS modem can offer.
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.
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.
DOCSIS 1.0 (cable modem) [12] 38/9 Mbit/s: 4.75/1.125 MB/s: 1997 DOCSIS 2.0 (cable modem) [13] 38/27 Mbit/s: 4.75/3.38 MB/s: 2002 DS3 / T3 ('45 Meg') 44.736 Mbit/s: 5.5925 MB/s: STS-1 / OC-1 / STM-0: 51.84 Mbit/s: 6.48 MB/s: VDSL (symmetry optional) 100 Mbit/s: 12.5 MB/s: OC-3 / STM-1: 155.52 Mbit/s: 19.44 MB/s: VDSL2 (symmetry optional) 250 ...
A cable modem termination system (CMTS, also called a CMTS Edge Router) [1] is a piece of equipment, typically located in a cable company's headend or hubsite, which is used to provide data services, such as cable Internet or Voice over IP, to cable subscribers.
PacketCable 1.0 comprises eleven specifications and six technical reports which define call signaling, quality of service (QoS), codec usage, client provisioning, billing event message collection, public switched telephone network (PSTN) interconnection, and security interfaces for implement a single-zone PacketCable solution for residential Internet Protocol (IP) voice services.
DOCSIS 2.0 added support for S-CDMA PHY, while DOCSIS 3.0 added IPv6 support and channel bonding to allow a single cable modem to use concurrently more than one upstream channel and more than one downstream channel in parallel. Virtually all cable modems operating in the field today are compliant with one of the DOCSIS versions.
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