The DOCSIS/EuroDOCSIS standard has evolved, offering in each new version the support of more and more advanced services:

• DOCSIS 1.0 – “best effort” Internet access services
• DOCSIS 1.1 – parameter guaranteed services, VoIP telephony
• DOCSIS 2.0 – symmetric transmission services (video conferences, P2P data exchange, private web pages)

The new standard version is DOCSIS 3.0, which offers very fast data transmission (up to 200 Mb/s) or Video over IP services with the Channel Bonding technology.

The deployment of a fast data transmission system can help a cable network operator to achieve many advantages:

• additional revenues thanks to the new interactive services offered to subscribers,
• service offer extension with new services responding to subscribers’ needs,
• TV network transformation into a broadband telecommunication network capable of sound, video and data transmission,
• the increase of the network operator competitiveness.

In order to deploy the DOCSIS 3.0 system, one needs not only proper headend equipment (ARRIS C4 CMTS), but also subsriber’s equipment (cable modems and multimedia terminals). VECTOR wants to offer all elements of the system, so it introduces new subscriber terminals compatible with the DOCSIS 3.0 system:

ARRIS Touchstone ® WBM750A/B Cable Modem

• DOCSIS/EuroDOCSIS 3.0 RFI Network Interface
• Downstream band: 108 – 1002 MHz
• Single Wideband DS Tuner (100 MHz Capture Bandwidth)
• Upstream band: 5-42 MHz (A) or 5-65 MHz (B)
• Channel Bonding (4 DS x 4 US)
• Dual module (automatic D3.0 or ED3.0)
• 10/100/1000 Base-T Ethernet Interface + USB 2.0vInternal AC/DC power supply
• LED diagnostics (power supply, DS, US, Online, Link)
• CE/CB standard compliant

ARRIS Touchstone® TM702A/B Multimedia Terminal

• DOCSIS/EuroDOCSIS 3.0 RFI Network Interface
• Downstream band: 108-1002 MHz
• Single Wideband DS Tuner (100 MHz Capture BW)
• Upstream band: 5-42 MHz (A) or 5-65 MHz (B)
• Channel Bondidng (4 DS x 4 US)
• 2 POTs Lines
• 10/100/1000 Base-T Ethernet Interface _ USB 2.0
• Dual module (automatic D3.0 or ED3.0)
• LED diagnostics (power supply, DS, US, Online, Link, Telephone 1&2)
• CE/CB standard compatible

All additional information can be obtained from your VECTOR representatives.

source: VECTOR

There are two key components in the DOCSIS architecture: Cable Modem (CM) which is located at the customer premise, and Cable Modem Termination System (CMTS), which is located at the headend of service providers and used to aggregate traffic from multiple Cable Modems and then communicate with the backbone network. DOCSIS specifies modulation schemes and the protocol for exchanging bidirectional signals between these two components over cable.

There are three versions of DOCSIS implemented and deployed now:

DOCSIS 1.0 - High Speed Internet Access. Key features: Downstream traffic transfer rates between 27 and 36 Mbps over a radio frequency (RF) path in the 50 MHz to 750+ MHz range, and upstream traffic transfer rates between 320 Kbps and 10 Mbps (Average 5 Mbps) over a RF path between 5 and 42 MHz. But, because data over cable travels on a shared loop, individuals will see transfer rates drop as more users gain access.

DOCSIS 1.1 - Data, Voice, Gaming and Streaming. Key features: DOSCIS 1.1 is interoperable with DOCSIS 1.0. It enhanced QoS for multiple services such as voice and streaming; Improved security over DOCSIS 1.0; and more robust upstream data transmission (average 10 Mbps).

DOCSIS 2.0 - Added capacity for symmetric services by operating at 64 QAM and having new 6.4 MHz wide channel. It increased bandwidth for IP traffic by using enhanced modulation and improved error correction. The result for upstream transmission is 30 Mbps, which is 3 times better than DOCSIS 1.1 and 6 times than DOSCIS 1.0. DOSCIS 2.0 is interoperable and backward compatible with DOCSIS 1.x.

The latest DOCSIS specification eDOCSIS has been published to the industry. eDOCSIS stands for embedded DOCSIS, which would provide a subordinate function at the core chip level to the host device. And, rather than leveraging a home networking protocol, an eDOCSIS device would feed directly into a cable network’s DOCSIS channel. eDOCSIS is intended to solve end device (and traffic) management, configuration and security issues to significantly reduce cost in the service operation and to improve speed and quality of end customer services.

source: javvin

Current DOCSIS 2.0 speeds top out at around 38 Mbps for downstream service, per channel. DOCSIS 3.0 allows ISPs to bond multiple channels into a single connection, allowing for up to an eight-fold increase in speed – up to 300 Mbps in the U.S. and 400 Mbps in Europe. Furthermore, the new specification adds full support for IPv6.

Wideband service will be available to subscribers under two different prices: $62.95 or $139.95 a month for residential customers, and $99.95 or $189.95 a month for businesses. The higher priced “Extreme 50” service offers speeds of up to 50 Mbps downstream/ 10 Mbps upstream, while “Ultra” service offers half the bandwidth for half the price.

The deployment starts with a handful of markets – New England, Philadelphia, and New Jersey – but should be available in the top 10 markets nationwide by the end of the year.

source: reviewlab.net

“The DP-360 is the latest in a long line of DOCSIS RF protocol analyzers from DAQTron,” said Joseph Kovacs, vice president of Marketing for DAQTron. “The DP-360 is already in use by leading DOCSIS equipment and product certification companies and is speeding up the identification and location of trouble spots by providing visibility into all layers of the DOCSIS network. This will also greatly assist service providers in troubleshooting their HFC networks as they deploy DOCSIS 3.0 bonded channel equipment into their plants.”

As a service to its valued customers, DAQTron is now offering a trade-in allowance to all ST-260C (the predecessor to the DP-360) customers. The DP-360 supports all of the features of the ST-260C which includes DOCSIS 1.0, 1.1, 2.0, and now 3.0.

source: entrepreneur.com