Downstream CCAP Core Module (DCCM)
The Downstream CCAP Core Module (DCCM) has the same MAC processing capacity of the 2nd generation Downstream Cable Access Module (DCAM-2). The DCCM and DCAM-2 can be used interchangeably to provide downstream MAC processing for the E6000 CCAP Core. 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 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. The DCCM offers power, weight, and cost savings over the DCAM-2 for Remote PHY applications. Use of DCCM requires the RSM-2 and either UCAM-2 or UCCM upstream modules.
2024 © Normann Engineering GmbH