Difference Between DOCSIS 3.0 Vs 3.1 and Docsis 2.0

Every cable modem comes with a DOCSIS standard, which determines the speed of the internet you receive. Its full-form is Data Over Cable Service Interface Specification and it is important because it influences the modem you get for a cable internet connection.

  • This technology connects the internet through various cables.
  • It simplifies network access for users in households where installing fiber-optic is costly.
  • DOCSIS offers faster internet speed than fiber-optic networks.
  • Speeds up to 10 gigabits per second based on the version.

The commonly used DOCSIS standards are DOCSIS 2.0, DOCSIS 3.0, and 3.1. The core difference is speed. While DOCSIS holds standard speed, DOCSIS 3.1 is faster than DOCSIS 3.0.

Before heading towards a streamlined comparison, let’s focus on each of these standards individually.

Understanding DOCSIS Technology

Motorola’s Surfboard cable modems are one of the most popular series on the market. Various models are available to suit the requirements of various Internet Service Providers or ISPs. These gadgets act as the extension between a client’s home or business Local Area Network, or LAN, and the cable Internet network also alluded to as the Wide Area Network.

Their job is to transform the signals transmitted to the more extensive network from digital packets to an analog stream at the supplier’s specified frequency and voltage level. The modem also translates the approaching analog stream into packets the client’s PC network can understand.

When Using DOCSIS 3.0, What Is The Minimum Number Of Channels That Can Be Used?

The number of channels entirely depends on the type of coax cable which you are using today. As of now, this device comes with a maximum limit of 4 channels with the modem.

This is an isolated integrated circuit that gives all the elements of a low-end PC, including the microchip, random access memory, operating system, configuration parameters, and network interface hardware, to communicate with both the local and wide area networks. Two regular manufacturers of this SOC are Broadcom and Conexant. SOCs exist in multiple varieties with different processor types and quantities of memory. These SOCs usually run a small, installed rendition of the Linux operating system.

Which Type of Internet Service Uses The DOCSIS Specification

Difference Between DOCSIS 3.0 Vs 3.1

Lately, digital cable has ended up being more popular and broad in many areas. Along with a superior picture and better sound, various digital cable programs are put on the air in eye-catching top quality goals, also known as HD, presenting up to multiple times the goal of standard-definition.

To be sure, various TV stations broadcast all their programs on the HD platform. Nonetheless, bear as a primary concern that because something’s digital doesn’t indicate its HD. The expression “digital” basically alludes to how the signal gets into your home. A digital signal can supply both top quality and standard-definition programs.

The Interface

Charter Digital cable gives you all that you’re comfortable with, like a regular cable with a wide variety of programming, including all of your local channels. Most digital cable suppliers suggest an assortment of programming packages, from primary channels to premium film packages. A ton of cable suppliers can set up about ten digital SD channels or two digital HD channels on single analog channel regularity. Various suppliers are skillful to pack more channels on top of a solitary frequency with superior pressure, but this can often cause the channel’s video quality to degrade.

Types of Models

There are many acceptable models of charter digital modems to use in your homes, for example, DDW3611, Cisco DPC 3000, DOCSIS 3.0 cable modem, Motorola SB 5101, SURFboard SB5101, and many other quality modems that could give you a quality entertainment experience.

What Is the Difference Between DOCSIS 3.0 vs 3.1?

Difference Between DOCSIS 3.0 Vs 3.1

The main difference between the two is the option of speed. The DOCSIS 3.0 comes with 32 download channels and provides a 1 GB speed. However, the 3.1 version comes with the same download channels but with 10 Gbps internet speed.

Operating Frequency

This part is an AC to DC adapter, also known as a “power block.” It sits between the modem and a power supply, usually line current from an outlet. It changes over 115 volts AC or 230 volts AC at 60 or 50 hertz to a DC voltage level with no frequency, typically at or under 12 volts. It also gives regulation to keep the current stockpile steady.

Applications and Uses

Charter digital cable stands out contrary to analog administrations, and therefore it offers the latest features. On-demand, latest guidance manuals, and on-screen gadgets are just a portion of these fascinating features. Digital cable innovation can permit many TV channels to take up the frequency space that would generally be taken by an unmistakable analog cable TV channel. A great deal of channels is situated on a solitary analog regularity relying upon the thickness used.


Digital cables are popular with customers because it allows them to contract the signal which then takes up a lesser amount of bandwidth, which means you can use your cable lines for more communication administrations.

Opening up the bandwidth has permitted many suppliers to incorporate cable Internet and cable telephone administration into their TV administrations, considering that they get more out of this innovation.

These three administrations structure the foundation of most cable packages or packages. Charter digital cable administrations are presented at inconceivably possible costs. The most current innovation charter can offer colossal help to customers and present preeminent significance and savings.

You also have the alternative of requesting only one of Charter’s digital administrations and partaking in the similar gigantic savings and administration.

What Are Two Layers Of The OSI Model Defined By Docsis?

The answer is simple- Layer 1 and Layer 2.

This hardware is answerable for changing over the signals utilized on a Local Area Network in the Ethernet standard to the analog standard utilized by cable Internet networks and the converse. For example, the Surfboard cable modem will usually connect LANs to the DOCSIS 2.0 or 3.0 network standards or the EuroDOCSIS equivalents outside North America. A different standard is utilized because of power and video frequency differences for customer hardware like cable TVs and PCs.

How Do I Know If I Have A Docsis 3.0 Modem?

This piece of the cable modem gives availability via at least one RJ-45 jacks to an Ethernet network. This 8-pin interface typically utilizes an unshielded wound pair cable for obstruction cancellation. The interface can be associated with an individual PC or a wired or wireless router to communicate with multiple PCs on a network. Communication can also be established on cell phones, PDAs, and tablet PCs.

This interface is associated with the cable Internet network via the same coaxial connector utilized by cable TV. It is sometimes associated with the modem after a splitter with an in-line attenuator.

Want to know about the key differences between the most trending DOCSIS standards? We’ve got you covered and here shares our in-depth comparison.

What is DOCSIS 2.0?

It is the original standard that offers decent speed suitable for limited usage.


  • Cost-efficient
  • Reliable and efficient
  • Can be upgraded to other standards


  • Slower in comparison to DOCSIS 3.0 and 3.1 standards
  • Lacks advanced network security
  • Holds limited compatibility

What is DOCSIS 3.0?

It is an upgrade over 2.0 standard and offers a maximum of 8 upstream and 32 downstream channels. It is suitable for all sorts of internet activities like streaming, surfing, or gaming.


  • Meets a range of needs due to high-range
  • Modems range from low-end models
  • Have more high-end channel count
  • Expensive than DOCSIS 2.0
  • Long-lasting
  • High-speed and sturdy construction


  • Low-end models may need replacement
  • May not offer enough speed for hefty activities
  • Offers up to 2 Gbps speed with fastest ISP plans

What is DOCSIS 3.1?

This is the newest DOCSIS standard offering the fastest download speeds of 10 Gbps or more. It is higher than DOCSIS 3.0 and upload speed can reach 1 Gbps. It has more channels than other standards and offers high stability.


  • Offers enough power for ISP to increase speed
  • More up-to-date
  • Backed by strong technical support
  • Supported by robust security norms


  • Expensive
  • Available mostly in standalone models

A Quick Comparison

Key TraitsHigh Upstream SpeedHighly Enhanced CapacityExcellent Efficient and Capacity
Upstream Capacity30 Mbps100 Mbps1-2 Gbps
Downstream Capacity40 Mbps1 Gbps10 Gbps
Production Year200220062013
Number of Channels1 Down1 Up4 Up4 or 8 Down8 Up8 or 16 Down

Which is a Better Choice?

DOCSIS technology has been useful since its inception and promises to be one of the finest ways to achieve a secure and fast internet connection. It allows carrying out the internet through already existing networks, and hence, reduces expenses for establishing new infrastructure.

DOCSIS 2.0 is beneficial for users who want decent internet speed within a budget. DOCSIS 3.0 is suitable for performing activities like checking emails, web browsing, or streaming online content. But if you need high bandwidth, it is best to pick DOCSIS 3.1.  

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I am Steven S. Martin, the person behind HDMITechnologies. Personally, I run my tech hub in Texas and used almost thousands of devices for my hub for the last 15 years. I put all my experiences and knowledge to make your decision better and valuable.

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