Los Angeles, California - Charter Communications DOCSIS was developed by CableLabs and contributing Los Angeles, California companies including ARRIS, BigBand Networks, Broadcom, Cisco, Conexant, Correlant, Harmonic, Intel, Motorola, Netgear, Terayon, and Texas Instruments - Charter DOCSIS Los Angeles California

The first specification was version 1.0, issued in March 1997, with revision 1.1 adding quality of service QoS capabilities following in April 1999. Because of increased demand for symmetric services such as IP telephony, Charter Communications DOCSIS was revised to enhance upstream transmission speeds; DOCSIS 2.0 was released in December 2001. Most recently, the specification was revised to significantly increase transmissions speeds this time both upstream and downstream and introduce support for Internet Protocol version 6 IPv6. This version, Los Angeles, California Charter Communications DOCSIS 3.0, was released in August 2006. Cross-version compatibility has been maintained across all versions of DOCSIS, with the devices falling back to the highest supported version in common between both endpoints: cable modem and cable modem termination system CMTS. For example, if one has a Charter Communications cable modem that only supports DOCSIS 1.0, and the system is running 2.0, the connection will be established at DOCSIS 1.0 speeds. - in Los Angeles, California.

Charter Communications, Los Angeles, California 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 or node. Cable systems supporting on-demand programming use a hybrid fiber-coaxial system. Fiber optic lines bring digital signals to nodes in the system where they are converted into RF channels and modem signals on coaxial trunk lines.

A typical CMTS is a device which hosts downstream and upstream ports it is functionally similar to the DSLAM used in DSL systems. While downstream and upstream communications travel on a shared coax line in the customer premises, and connect to a single F connector on the cable modem, it is typical for the CMTS to have separate F connectors for downstream and for upstream communication. This allows flexibility for Charter Communications. Because of the noise in the return upstream path, an upstream port is usually connected to a single Los Angeles, California neighborhood fiber node, whereas a downstream port is usually shared across a small number of neighborhoods. Thus, there are generally more upstream ports than downstream ports on a CMTS. A typical CMTS has 4 or 6 upstream ports per downstream port - Charter DOCSIS Los Angeles California.

Before Charter Communications can deploy DOCSIS 1.1 or above, it must upgrade its Hybrid fiber-coaxial HFC network to support a return path for upstream traffic. Without a return path, the old DOCSIS 1.0 standard still allows use of data over Charter Communications cable system, by implementing the return path over regular phone lines, e.g. "plain old telephone service" POTS. If the HFC is already 'two-way' or 'interactive', chances are high that DOCSIS 1.1 or higher can be implemented.

The customer PC and associated peripherals are termed Customer-premises equipment CPE. The CPE are connected to the cable modem, which is in turn connected through the HFC network to the CMTS. The CMTS then routes traffic between the HFC and the Internet. Using the CMTS, Charter Communications or Multiple Service Operators - MSO exercises full control over the cable modem's configuration; the CM configuration is changed to adjust for varying line conditions and Los Angeles, California customer service requirements.

Charter Communications - DOCSIS 2.0 is also used over microwave frequencies 10 GHz in Ireland by Digiweb, using dedicated wireless links rather than HFC network. At each subscriber Los Angeles, California premises the ordinary CM is connected to an antenna box which converts to/from microwave frequencies and transmits/receives on 10 GHz. Each Charter Communications customer has a dedicated link.

More Related Charter Communications - Los Angeles - California Links:
* Charter Cable Los Angeles California
* Charter Internet Los Angeles California
* Charter Telephone Los Angeles California
* Charter Television Los Angeles California
* Charter Bundle Los Angeles California
* Charter HDTV Los Angeles California
* Charter DOCSIS Los Angeles California