What are DOCSIS standards?
Data over cable service interface specification (DOCSIS) is a standard for broadband cable transmission of IP data services. It defines an upstream and downstream channel to enable bidirectional communications between a cable modem termination system (CMTS) in the cable headend and a subscriber’s cable modem (CM).
What is DOCSIS and how does it work?
DOCSIS is an internationally accepted telecom standard that allows broadband data transfer using cable systems originally used to transmit cable television signals (CATVS). DOCSIS enables bidirectional communications by use of an upstream and downstream channel.
What are the main components of the DOCSIS architecture?
The DOCSIS architecture consists of two primary components: a cable modem located with the customer, and the cable modem termination system (CMTS) operated by cable service providers. When DOCSIS 1.0 emerged in 1997, the specifications enabled 50Mbps downstream and 10Mbps upstream data speeds.
What is DOCSIS compliant?
(Data Over Cable Service Interface Specification) A cable modem standard from the CableLabs research consortium (www.cablelabs.com), which provides equipment certification for interoperability. DOCSIS supports IP traffic (Internet traffic) over digital cable TV channels, and current cable modems are DOCSIS compliant.
What does DOCSIS 3.0 stand for?
Data Over Cable Services Interface Specification
DOCSIS 3.0 is the next generation of DOCSIS (Data Over Cable Services Interface Specification), an international telecommunications standard that lets cable television operators add high-speed and telephony data to their current cable TV systems.
What is DOCSIS 3.1 OFDM?
DOCSIS 3.1 downstream orthogonal frequency division multiplexing (OFDM) signals support a variety of modulation orders up to 4096-QAM (optionally as high as 8192-QAM and 16384-QAM) over channel bandwidths ranging from a minimum of 24 MHz to a maximum of 192 MHz.
What is the use of CM and CMTS?
CM and CMTS communication over HFC cables. Bi-directional data flow happens between CM and CMTS. The path from CM to CMTS is known as upstream channel while path from CMTS to CM is known as Downstream channel. Data in downstream is sent on independent 6Mhz channels while on upstream a single channel is used by all CMs.
Does fiber use docsis?
In each node, the signal from the fiber is “split” and sent down coax for the final few meters to subscriber homes. These kinds of deployments are known as “hybrid fiber-cable” (HFC) networks. The latest version of the standard is DOCSIS 3.1.
What does CMTS stand for?
A cable modem termination system (CMTS) is a piece of equipment, typically located in a cable company’s headend or hubsite, which is used to provide high speed data services, such as cable Internet or Voice over Internet Protocol, to cable subscribers.
What is a functional specification document?
Depending on your project and team, the functional specification document may take on different forms. Let’s examine this point in detail. In theory, we all know what use cases are. A use case describes the behavior of a system when the user performs an action. But what should a use case include?
Who draws up the functional specification documents?
Usually, a product manager draws up the functional specification documents in the company of others, such as UXers, clients and other project stakeholders.
What is an ad-nopio functional specification document?
– Nopio Functional Specification Document: What Is It and How To Create It? When approaching a software development company with a project in mind, it’s good to provide a document listing all the requirements. Development teams use it to prepare a rough estimation of the project and, once it’s launched, an in-depth needs analysis.
What is the difference between SI and functional specification?
SI is “System Integration and Test” not “System Integration and Text”. A functional specification (also, functional spec, specs, functional specifications document (FSD), functional requirements specification) in systems engineering and software development is a document that specifies the functions that a system or component must perform