D-CCAP Solution Overview

The distributed converged cable access platform (D-CCAP) solution supports DOCSIS 3.0 services and will gradually evolve to DOCSIS 3.1. It maximizes DOCSIS 3.1 performance on high order modulation (HOM) at the physical layer and provides ultra-broadband cable access for carriers. In this way, the service life of HFC networks is extended to the next decade. Compared with DOCSIS 3.0, DOCSIS 3.1 features high bandwidths and spectrum usage so that it empowers operators to provide smooth and clear audio as well as video experience for users over the Internet.

Provides an upstream bandwidth over 2 Gbit/s and a downstream bandwidth over 10 Gbit/s.

Compatible with existing MSO networks.
Adapts to HFC networks divided by various spectrums.
Achieves smooth evolution without restructuring existing networks.

Network Architecture

Network Architecture
Fully-digitized
Recommended Product
Abbreviations

Request a Quote
Let Us Help
- Tel
- +1-626-655-0998 (USA)
- +852-2592-5411 (HK)
- Email
- sales@router-switch.com
  (Sales Inquiries)
- Live Chat

D-CCAP Network Architecture

Network
Built-in

Network Architecture

Distributed converged cable access platform (D-CCAP) meets the requirements of triple-play network services over hybrid fiber coaxial (HFC) networks of multiservice operators (MSOs) because of unique advantages of the D-CCAPs, such as high bandwidth and supporting HFC networks

Built-in Optical Receiver or Transmitter and WDM and EQAM

The WDM in the branch equipment room combines data signals and CATV signals for signal transmission over one feeder fiber. On the optical node, the WDM built in the CMC separates the two types of signals from each other.
The EQAM built in the CMC is moved downwards from the branch equipment room to the fiber node.

Fully-digitized Converged Network

Digital Fiber
Space Reduction
C & F in collaborationin

Transmission Media Change Improves CNR by 7–8 dB

In a cable network, carrier-to-noise ratio (CNR) is a key factor that affects bandwidth improvement. Specifically, insufficient CNR in a cable network hinders bandwidth improvement. An improved CNR supports a higher modulation order and bandwidth accordingly in a traditional network, the distribution hub and fiber node use analog fibers for transmission, that is, analog signals are transmitted from the distribution hub to cable modems (CMs).
D-CCAP shortens transmission distance of analog signals, that is, analog signals are transmitted between the CM and CMC and digital signals are transmitted between the OLT and CMC. This solution improves line quality and CNR so that more bandwidth can be obtained

Equipment Room Space Reduction

To cope with network expansion, multiple system operators (MSOs) deploy numerous types of devices in their distribution hubs. More and more devices cover vast equipment room and much room space is required. In traditional CMTS and CCAP solutions, devices such as mixer, codec, and EQAM are deployed in the distribution hub, resulting in insufficient space for network expansion. In the D-CCAP solution, devices such as mixer, EQAM, and optical receiver or transmitter are built in the CMC and the CMC is moved downwards to the fiber node. In addition, the original CMTS is replaced with the OLT. This solution reduces types of devices in the distribution hub.

FTTH and traditional cable networks be constructed in collaboration

The SmartAX EA5800 multi-service access module (OLT) is supports multiple network construction modes, including FTTH, and D-CCAP.
In this scenario, an OLT connects to D-CCAP users and FTTH users. The "subrack-shared and board-separated" construction mode is recommended on the OLT. Specifically, the D-CCAP users and the FTTH users are connected to separate boards in the OLT. This mode facilitates O&M and service expansion.

Recommended Product Combination

Product	Hardware Requirements
OLT: MA5800-X17 (21 inch) MA5800-X15(19 inch) MA5800-X7 (19 inch) MA5800-X2 (19 inch)	Control board:	H901MPLA, H901MPLB or H901MPSC
	10G GPON service board:	H901XGHD
	GPON service board:	H901GPHF
	10GE service board:	H901OXHD, H901OXEG
	GE service board:	H901OGHK
	Video service board:	H901CVEC
CMC: MA5833/MA5633	• DOCSIS 3.1 MA5833-BS60 (cable outlets on a single side) :	D3.0/32D x 16U + D3.1/6D x 2U + 80 SC-QAM
	• DOCSIS 3.1 MA5833-DD60 (cable outlets on both sides) :	D3.0/32D x 16U + D3.1/6D x 2U + 80 SC-QAM
	• DOCSIS 3.0 MA5633 (cable outlets on a single side) :	32D x 8U
	• DOCSIS 3.0 MA5633-XB10 (cable outlets on the front panel):	32D x 10U
	• DOCSIS 3.1 MA5633 (cable outlets on a single side) :	D3.0/32D x 10U + D3.1/D2 x 2U + 64 SC-QAM
	• DOCSIS 3.1 MA5633-DD20/XD20 (cable outlets on both sides) :	D3.0/32D x 10U + D3.1/2D x 2U + 64 SCQAM

Acronyms and Abbreviations

BSoD	Business Services over DOCSIS	LDPC	Low Density Parity Check
CM	Cable Modem	MSO	Multiple Systems Operator
CMC	Cable Media Converter	ODN	Optical Distribution Network
CMTS	Cable Modem Terminal System	OFDM	Orthogonal Frequency Division Multiplexing
CNR	Carrier-to-Noise Ratio	OFDMA	Orthogonal Frequency Division Multiple Access
D-CCAP	Distributed-Converged Cable Access Platform	OSS	Operations Support System
DOCSIS	Data over Cable Service Interface Specification	PNM	Proactive Network Maintenance
EQAM	Edge Quadrature Amplitude Modulation	QAM	Quadrature Amplitude Modulation
FTTH	Fiber to The Home	VPN	Virtual Private Network

Our Services

1. Specialized in ICT for 23 Years

2. A wide range of network products and solutions

3. Free Access Network Support

4. Competitive Wholesale/Retail Price

5. Safe Online Shopping

6. Professional Sales Management Systems

How Can We Help

Get advice, answers, and solutions when you need them. For general questions, contact us at +1-626-655-0998 / sales@router-switch.com.