C3000 Series

C2000 Series



 

Solutions

Overview

The C2150 Downstream Digital Cable Termination System (DCTS) is Casa Systems’ second generation multi-purpose Edge-QAM. It is designed to meet the DOCSIS multi-channel RF specification (Downstream RF Interface Specification) and modular CMTS Edge QAM specification. C2150 offers the highest density and the most flexible solution for cable operators to deliver both video-over-IP services and MPEG video services concurrently. The revolutionary IP bandwidth capacity and cost per IP stream of the C2150 provide an unprecedented opportunity for cable operators to cost-effectively provision high-bandwidth IP services such as video-over-IP and interactive gaming in addition to traditional broadband access and VoIP services.  The integrated MPEG video processing capability of the C2150 provides cable operators the flexibility to offer MPEG or DVB-based switched digital video, video-on-demand (VOD), and interactive TV services in the same platform.

  

Applications

There are several scenarios Casa products can be deployed today to provide different types of services and migration paths:

1.   Deployed as MPEG Edge-QAM and video switch today:   DCTS can be deployed as Edge-QAM today for MPEG-based unicast applications and switched digital broadcast application for new deployment or to add additional capacity without the need to remove legacy equipment. DCTS is completely compatible with existing MPEG Edge-QAM deployed in the field today. No change to the existing network architecture is needed to deploy DCTS. When the operator is ready to move to video-over-IP, DCTS can be field-upgraded to provide IP functionality without any change of hardware. Deploying DCTS as an MPEG Edge-QAM today provides investment protection and a migration path to an all-IP network.

2.   Deployed as MPEG Edge-QAM and video-over-DOCSIS edge device:  DCTS can also be deployed as a unified platform to provide simultaneous video-over-MPEG and video-over-IP services. The RF spectrum resources are shared among MPEG and IP traffic, the ratio of MPEG traffic and IP traffic can be adjusted in real-time.   

3.   Deployed as video-over-IP edge only:  DCTS can be deployed from day one as a downstream DOCSIS edge device to provide video-over-IP services at a cost very competitive relative to video-over-MPEG services.

Feature Highlights

Hybrid QAM – Supports simultaneous video-over-DOCSIS and video-over-MPEG on the same RF channel

Exceptional RF Performance – Designed to exceed the DOCSIS DRFI specification for multi-channel QAMs, with extended frequency range up to 1 Ghz

Broadcast and Narrowcast – Support broadcast (MPTS pass-through) and narrowcast (SPTS to MPTS mux) mode in the same RF channel

High density – Offers the highest channel density per 1RU space in the industry: up to 4 GbE ports and 64 channels of QAM

MPEG Processing – Provides integrated video grooming, PID filtering, and PCR reconditioning

Conditional Access Scrambling– Integrated 3DES encryption and DVB common scrambling  

Modular CMTS Edge-QAM – Designed as modular CMTS Edge-QAM for DOCSIS and wideband DOCSIS applications

Session and Resource Management – Support multiple edge resource allocation and session management protocols for switched digital video, netPVR and VOD

Multilayer switching and routing - Supports Ethernet switching for Layer 2 networks and IP switching and routing for Layer 3 networks

Input Redundancy – Up to four GbE ports for 1+1 or n+1 input redundancy