C3000 Series

C2000 Series



 

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Overview

The Casa Systems C2200 Cable Modem Termination System (CMTS)  is a new class of cable edge device that combines a third generation DOCSIS CMTS and an MPEG video Edge-QAM in a single compact 1RU platform.  It is the industry's first and only CMTS to earn full (gold level) DOCSIS 3.0 qualification.

The broadband access over cable market has experienced two generations of DOCSIS CMTS. All of the products on the market today are either first or second generation CMTS that can be characterized by fixed downstream to upstream ratio, instantaneous bandwidth per subscriber limited to a single RF channel, very low downstream channel density per rack unit and high cost per unit bandwidth. The legacy CMTS does not have any MPEG video processing capability and thus makes it necessary to implement two parallel access networks for MPEG video and DOCSIS IP. With those limitations, the legacy CMTS is not economically viable in the new market of high bandwidth applications such as IPTV or IP video delivery and is not competitive to other broadband access methods such as FTTH. As a third generation CMTS, the C2200 has several unique capabilities beyond DOCSIS 3.0 features:

h Complete Separation of Downstream & Upstream Modules -  Unlike the traditional CMTS with a fixed downstream to upstream ratio, the C2200 has separate modules that provide flexible downstream to upstream ratios in a single physical chassis. Cable operators can add downstream channels and upstream channels completely independently. Business users may require more symmetric downstream to upstream traffic ratio. Residential broadband access has more asymmetric traffic patterns. For IPTV or video-over-IP applications, significantly more downstream traffic is required than the upstream traffic which is mostly for control plane applications. 

h  High Density - The C2200 has significantly higher channel density than a second generation CMTS. The C2200 can support up to 48 downstream QAM channels in 1RU while second generation CMTS typically has 1 or 2 downstream channels in 1RU. The extremely high downstream channel density makes it economical to provide video-over-IP service today. 

h Integrated CMTS and VideoQAM - The C2200 can support both DOCSIS and MPEG/DVB traffic in a single platform.  This unique feature is very important for cable operators to manage their HFC spectral resources in a single platform. It also allows the spectral resources to be shared dynamically between MPEG video, DOCSIS business users and DOCSIS residential users. For example, more bandwidth can be allocated to DOCSIS business traffic during the day while more bandwidth can be allocated to MPEG/DVB video traffic at night to efficiently utilize the spectral resource. 

h Industry Leading DOCSIS 3.0 Implementation - The C2200 has the most extensive DOCSIS 3.0 features in the market today.  It offers the highest channel bonding capability in the downstream direction (16 channels), and being the only "gold" level qualified CMTS on the market, it also offers upstream bonding capability (up to 16 channels).  Full gold level qualification also includes features such as advanced AES encryption, and IPv6.

The revolutionary DOCSIS bandwidth capacity and cost per-bit of DOCSIS bandwidth of the C2200 provides an unprecedented opportunity for cable operators to cost-effectively provision high-bandwidth IP services such as IPTV or video-over-IP and interactive gaming in addition to traditional broadband access and VoIP services. The integrated MPEG video capacity of the C2200 provides cable operators the flexibility to offer MPEG or DVB-based broadcast digital cable TV, video-on-demand (VOD), and interactive services in the same platform. The flexibility, multi-functionality and economics of the platform eliminate the need to deploy multiple parallel systems for MPEG TV, IPTV bypass and DOCSIS broadband access.

Feature Highlights

Full DOCSIS 3.0 Features – Channel bonding of up to 16 downstream and 16 upstream channels, AES encryption, IPv6 for cable modems.  CableLabs DOCSIS 3.0 qualified (Full Gold level)

High Density - Offers the highest channel density per 1RU space in the industry (up to 48 downstream or 48 upstream channels)

Seperate Downstream and Upstream modules – Unlike the traditional CMTS with fixed downstream to upstream ratio, the C2200 has separate downstream and upstream modules that provide flexible downstream to upstream ratios

Integrated CMTS and VideoQAM – DOCSIS traffic and MPEG/DVB video traffic can share the same RF channel

Cost effectiveness – Offers lowest cost per channel in the industry

Exceptional RF Performance – DOCSIS DRFI specification qualified for multi-channel QAM output, and designed with extended frequency range up to 1 Ghz

DOCSIS 1.1 and 2.0 Features - Complete DOCSIS 1.1 and 2.0 feature sets.  DOCSIS 3.0, 2.0, 1.1 and EuroDOCSIS 2.0 qualified.

Rich Operational Features – Rich features such as show cable modem, flap list, spectral management, IP bundling, and advanced routing protocols,  ready for deployment

Ingress noise mitigation – The C2200 has innovative spectral management and noise cancellation schemes to mitigate ingress noises in the non-ideal HFC plant