E6000-DCCM | E6000 CER Downstream CCAP Core Module (DCCM)

The E6000® Converged Edge Router (CER) is a next-generation Converged Cable Access Platform (CCAP™) that provides cable operators unprecedented advances in channel density, power efficiency, and cost savings in a redundant, integrated architecture designed from the ground up for high availability. This powerful design allows operators to converge all services (video, high speed data, and voice), enabling additional savings in capital and operational expenditures along with increased operational efficiency. For Distributed Access Architecture (DAA) solutions, CommScope provides both the CCAP Core and Remote PHY (R-PHY) Device (RPD) defined in the CableLabs® Modular Headend Architecture (MHAv2). In this approach, the PHY layer is moved from the E6000 CER into a node or remote shelf, but the MAC processing, provisioning, and monitoring functions are performed by the E6000 CCAP Core.

The Downstream CCAP Core Module (DCCM) has the same MAC processing capacity of the 2nd generation Downstream Cable Access Module (DCAM-2) but without the PHY-layer hardware and related components. The DCCM and DCAM-2 can be used interchangeably to provide downstream MAC processing for the E6000 CCAP Core. The DCCM offers power, weight, and cost savings over the DCAM-2 for Remote PHY applications. Without RF hardware, the DCCM cannot be used for I-CCAP applications. E6000 Release 7.0 and later support “hybrid” operation of Integrated CCAP (I-CCAP) and CCAP Core within the same chassis.

The Downstream CCAP Core Module (DCCM) is essentially a DCAM-2 without the RF circuitry. The DCCM is meant only for R-PHY operation for which it provides the same functionality and capacity as the DCAM-2. The DCCM and DCAM-2 are interchangeable for R-PHY operation and can be mixed in the same E6000 chassis. The DCCM supports MAC processing for RPDs with downstream RF bands up to 1.2 GHz. In addition, the DCCM can support multiple 192 MHz OFDM channels per Service Group on capable RPDs. Operators receive significant benefits in terms of operational simplicity, power, and cost savings by deploying DCCM in R-PHY applications. Use of DCCM requires the RSM-2 and either UCAM-2 or UCCM upstream modules.