Cisco cBR-8 Converged Broadband Router Data Sheet

Data Sheet

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Updated:April 16, 2020

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The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.

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Updated:April 16, 2020


Product overview

Cable operators have seen exponential growth in broadband traffic in recent years. According to industry reports, downstream and upstream traffic grew significantly annually for the past several years. Even after many years of high rates of traffic growth, the pace continues. Much of this growth is due to the consumption of video, which accounts for a significant and growing percentage of bandwidth used in Hybrid Fiber-Coaxial (HFC) networks.

Cisco® Converged Broadband Router-8 (cBR-8) is the next-generation, highly available, fully redundant, terabit-capable Converged Cable Access Platform (CCAP) from Cisco. It allows cable operators to deliver more bandwidth, higher service tiers, and greater agility in deploying new applications and services, while minimizing operational expenses, power requirements, and rack space requirements in cable headends.

With industry-leading density and the capability to converge DOCSIS data, MPEG video, and IP video onto a single system, the Cisco cBR-8 Converged Broadband Router provides cable operators with a simple, cost-effective path to a full CCAP and the all-IP infrastructure. In addition to new DOCSIS® and optical networking capabilities, the Cisco cBR-8 Converged Broadband Router will also be capable of applying Software-Defined Networking (SDN) and virtualization technologies to virtualize, integrate, and automate the access architecture of cable operators.

Cisco cBR-8 Converged Broadband Router

Figure 1.       

Cisco cBR-8 Converged Broadband Router

Stay one step ahead of bandwidth demand

There are 32-64 channels of DOCSIS 3.0 QAM channels and multiple DOCSIS 3.1 (OFDM) blocks per service group. That’s what cable Multiservice Operators (MSOs) report they need to handle growing bandwidth requirements with gigabit and higher services. DOCSIS 3.1 promises higher spectral efficiency (30-50 percent) but also places a heavier demand on the headend equipment in terms of power, cooling, and bandwidth requirements.

Cisco has seen that cable MSOs are also aggressively pursuing a strategy to converge legacy MPEG services with DOCSIS high-speed Internet services to maximize the benefits of the transition to CCAP architectures. Furthermore, MSOs are considering fiber deep architectures (Remote PHY in the fiber node) as well hub consolidation solutions (Remote PHY shelf) to position themselves to compete effectively against Fiber-To-The-x (FTTx) overbuilders. A hub consolidation strategy opens new vistas for MSOs to consider virtualizing Cable Modem Termination System (CMTS) and CCAP functions on server farms in the data center and to think about newer ways of orchestrating and managing their networks through automation technologies.

MSOs need a next-generation CCAP solution that can not only solve today’s bandwidth demands in a cost-effective and efficient way but also includes an architecture that can evolve as the HFC plant evolves. They need a platform that is ready for the challenges posed by DOCSIS 3.1 and the convergence of video and data and can provide disruptive technologies such as SDN to simplify network management and orchestration. They need the Cisco cBR-8.

In addition to its impressive bandwidth capacity as well as SDN capabilities and Remote PHY, the Cisco cBR-8 software architecture based on Cisco IOS® Software XE is truly next generation in terms of its resiliency and high availability. Cisco delivers a modular software design that supports memory protection, fault isolation, zero packet loss failure recovery (in many cases), software patch capabilities, hitless upgrades, and more on the Cisco cBR-8.

It’s the only truly next-generation CCAP device available that is able to address today’s requirements but that can also evolve and provides cable MSOs with a migration path to an all-IP, terabit forwarding, Remote PHY, and SDN future.

Features and benefits

Table 1.        Product Features and Benefits



Carrier Class System

Delivers 99.999% availability

Provide system and business continuity

Integrated N+1 RF Switch

Supports cost effective and efficient N+1

Cisco IOS XE Software subsystem process restart and independent patching ability

Software components with flaws can be fixed by installing a newer, patched version and restarting a process without impacting other components

Industry-leading software quality and resiliency

Process restartability helps enable zero packet loss failure recovery in many cases. Software modularity allows for fault containment and memory protection

Industry-leading routing capabilities

Highly intelligent edge routing platform provides full routing functionality including full IPv6 routing feature set, MPLS, etc

Unprecedented and Scalable Capacity and Throughput

13 RU and 10-slot chassis (8 subscriber side slots, 2 supervisor slots)

Industry’s most compact and densest CCAP

64 service groups (56 SG with N+1) for ICCAP applications

8DS ports X 16 US ports make sure that service group capacity is preserved regardless of 1:1 or 1:2 DS:US SG ratio

Up to 256 service groups with Remote PHY

Unprecedented SG scalability with Remote PHY

1+ terabit backplane

A fully integrated and scalable platform easily allows higher bandwidth new services deployment

DS capacity

768 unique D3.0 QAM per line card (6144 per chassis)


2 orthogonal frequency-division multiplexing (OFDM) blocks (192MHz each) per port (16 per line card)

Almost 4 Gbps per DS port

US capacity

96 US channels per line card (768 per chassis)


2 OFDMA blocks (96 MHz each) per port (32 per line card)

Up to 200Gbps forwarding

Performance with service intelligence

High-performance control plane

Multicore 64-bit architecture with 48 GB of memory (expandable to 96 GB)

Investment Protection

A platform designed to evolve with your network

  Modular design allows for easy upgradability to fully deployable D3.1
  Modularity supports easy transition to Remote PHY architectures with minimal investments
  Midplane design supports analog and digital fiber connectivity options
  Flexible platform architecture allows for implementing other access technologies (e.g., DOCSIS Provisioning of Ethernet Passive Optical Network [DPoE])

Pay-as-you-grow Cisco Smart Licensing model

Add capacity by simply activating more software licenses. Also, Cisco Smart Licensing allows for simpler licensing operations for operational ease of use

SDN and Automation Ready

SDN Orchestration

Seamlessly manage your network with Cisco SDN orchestration solutions

SDN operational simplicity

Provision and manage various network components via standards-based SDN programmatic interfaces

SDN application suite

Allow value added applications via SDN

Virtual cBR

Support Hub consolidation and software based CCAP solutions for the data center

Product specifications

Table 2.        Product Specifications



RF characteristics, DOCSIS 3.0,3.1, and Video



Downstream Frequency Range

SC-QAM: 45-1002 MHz

OFDM: 108-1218 MHz

RF Output Power Range

61 - Ceil [3.6*log2(N*)] dBmV max per channel

52 - Ceil [3.6*log2(N*)] dBmV min per channel



Upstream Frequency Range

5-204 MHz




Physical specifications

Height: 13RU (22.75 in./57.78 cm)

Width: 17.45 in. (44.32 cm) (no rack mounts)

17.65 in. (44.83 cm) with rack mounts installed.

Overall Depth: 28.075 in. (71.3 cm)

Weight: 429 lb (195 kg) maximum fully loaded

Route processor

High Performance 64-bit Control Plane

WAN backhaul

8 + 8 10GE WAN Ports and 80 + 80 Gbps[ 100 +100 Gbps WAN Backhaul


48 GB expandable to 96 GB in the future

Performance (forwarding)

200 Gbps with features activated

Fan module

5 Fan Modules:

  2 high-efficiency fans per module
  Variable-speed fans for optimal thermal performance
  No single point of failure

Supported SFP/QSFP

SFP-10G-SR                                    QSFP-100G-SR4-S

SFP-10G-LR                                     QSFP-100G-LR4-S

SFP-10G-ER                                     QSFP-40G-SR4

SFP-10G-ZR                                    QSFP-4X10G-LR-S



Power Requirements

Redundant power supply

AC: Cisco cBR-8 supports N+1 (e.g. 3+1) or N+1 (e.g. 3+3) redundancy

DC: Cisco cBR-8 support N+1 (e.g. 4+1) redundancy

Power input

Worldwide ranging AC (200-240V; 50-60 Hz; 16A maximum)

Worldwide ranging DC (-40 to -72V; 50A nominal, 60A maximum)

Power consumption

Cisco cBR-8 Lifetime Facility Maximum Power Consumption: 9000 W

Cisco cBR-8ICCAP Hardware Facility Maximum Power Consumption (D3.1) 7900 W

Cisco cBR-8 RPHY Hardware Facility Maximum Power Consumption 5000 W *

  Typical power consumption for configurations of interest available upon request



Environmental Specifications

Operating temperature (nominal)

32 to 104ºF (0 to 40ºC) sea level

Operating humidity (nominal) (relative humidity)

5 to 85%

Operating humidity (short-term)

5 to 90%

Note: Not to exceed 0.024 kg water per 1 kg of dry air

Storage temperature

-40 to 158ºF (-40 to 70ºC)

Storage (relative humidity)

5 to 95%

Note: Not to exceed 0.024 kg water per 1 kg of dry air.

Operating altitude

-60 to 4000m

Reliability and availability

Supports Online Insertion and Removal (OIR)

Supports Nonstop Forwarding (NSF) and Stateful Switchover (SSO)

Supports In-Service Software Upgrades (ISSUs)


Meets or Exceeds Cablelabs specifications

Regulatory and compliance


  UL/CSA/IEC/EN 60950-1 2nd Ed. - United States, Canada, Europe
  AS/NZS 60950.1 - Australia
  EN60825/IEC 60825 Laser Safety
  FDA - Code of Federal Regulations Laser Safety

Electromagnetic Emissions Certification

  EN50083-2 - Europe
  KN 22 Class A - Korea
  FCC Part 15 Class A - United States
  ICES 003 Class A - Canada
  AS/NZS Class A - Australia
  CISPR 22 Class A - Europe
  EN55022 Class A - Europe
  VCCI Class A - Japan
  CNS13438 Class A - Taiwan
  IEC/EN61000-3-2 Power Line Harmonics - Europe
  IEC/EN61000-3-3 Voltage Fluctuations and Flicker - Europe


  EN50083-2 - Europe
  CISPR 24 - Europe
  KN 24 - Korea
  IEC/EN61000-4-2 Electrostatic Discharge Immunity (8kV contact, 15kV air)
  IEC/EN61000-4-3 Radiated Immunity (10V/m)
  IEC/EN61000-4-4 Electrical Fast Transient Immunity (2kV power, 1kV signal)
  IEC/EN61000-4-5 Surge AC Port (4kV CM, 2kV DM)
  IEC/EN61000-4-5 Surge Signal Port (1kV)
  IEC/EN61000-4-5 Surge DC Port (1kV)
  IEC/EN61000-4-6 Immunity to Conducted Disturbances (10Vrms)
  IEC/EN61000-4-8 Power Frequency Magnetic Field Immunity (30A/m)
  IEC/EN61000-4-11 Voltage Dips, Short Interruptions, and Voltage Variations

Network Equipment Building Standards

The system is designed to meet the following Networking Equipment Building Standards (NEBS):

  NEBS Level 3, Bellcore: GR-63-CORE, GR-1089-CORE

European Telecommunication Standards Institute (ETSI)

  EN 300 386 Telecommunications Network Equipment (EMC)
  EN50083-2 Cable networks for television signals, sound signals and interactive services
  EN55022 Information Technology Equipment (Emissions)
  EN55024 Information Technology Equipment (Immunity)
  EN61000-6-1 Generic Immunity Standard
  EN61000-6-2 Generic Immunity Standard for Industrial Environments
  ANSSI Certfication
* Some features and MIBs available in later releases.

Ordering information

To place an order, visit the Cisco Ordering page.

Table 3.        Ordering Information for Cisco cBR-8 Router select Part Numbers

Product Description

Part Number

Cisco cBR-8 Converged Cable Access Chassis

cBR-8 CCAP Chassis


cBR-8 AC Power Supply


cBR-8 AC PEM (AC Facility connectivity)


cBR-8 AC Power Tray where AC Power Supplies reside


cBR-8 DC Power Supply


cBR-8 DC PEM (DC Facility connectivity)


cBR-8 DC Power Tray where DC Power Supplies reside


cBR-8 Power Supply Blanks (for empty Power Supply slots)


Fan Modules (5 modules)


Table 4.        Ordering Information for Cisco cBR-8 Router Supervisor Modules

Product Description

Part Number

Cisco cBR-8 Supervisor Modules

The Supervisor includes 160G forwarding capability as well as a robust and powerful control plane complex. The Supervisor ships with 48 GB of memory.


The Supervisory PIC includes WAN backhaul connectivity options


The Supervisor includes 250G forwarding capability as well as a robust and powerful control plane complex. The Supervisor ships with 96 GB of memory.


The Supervisory 250G PIC includes WAN backhaul connectivity options


Supported SFP+ Options (Sup160G):






Supported QSFP Options (Sup250G):





Blank for an empty Supervisor Slot


Blank for an empty Supervisor PIC slot


Software Licenses For Cisco cBR-8 Supervisor Modules

10G WAN license (Sup 160G or Sup 250G)


100G WAN License (Sup 250G only)


Table 5.        Ordering Information for Cisco cBR-8 Router Interface and Modules

Product Description

Part Number

Cisco cBR-8 Integrated CCAP, Remote PHY line cards and Physical Interface Cards

cBR CCAP line card includes 2 DS D3.1 modules as well as 1 US D3.1 Module


cBR CCAP line card includes 2 DS D3.0 modules as well as 1 US D3.0 Module. The line card is upgradable to D3.1 on both DS and US


cBR CCAP line card includes 1 DS D3.1 modules as well as 1 US D3.1 Module


cBR CCAP line card includes 1 DS D3.1 modules as well as 1 US D3.0 Module. The line card is upgradable to D3.1 on the US


cBR CCAP 40G Remote PHY line card


cBR CCAP 8x10G Remote PHY Digital Physical Interface Card


cBR CCAP RF Through PIC (Connectivity to the RF Plant)


cBR CCAP Protect PIC (for N+1 redundancy)


cBR-8 RF Cables


Software Licenses For Cisco cBR-8 RF Line Cards

D3.1 DS License


D3.0 DS License


D3.0 US License


D3.1 US License


Service and support

Cisco offers a wide range of services programs to accelerate customer success. These innovative services programs are delivered through a unique combination of people, processes, tools, and partners, promoting high levels of customer satisfaction. Cisco Services help you to protect your network investment, optimize network operations, and prepare the network for new applications to extend network intelligence and the power of your business. For more information about Cisco Services, see Cisco Technical Support Services or Cisco Advanced Services.

Cisco environmental sustainability

Information about Cisco’s environmental sustainability policies and initiatives for our products, solutions, operations, and extended operations or supply chain is provided in the “Environment Sustainability” section of Cisco’s Corporate Social Responsibility(CSR) Report.

Reference links to information about key environmental sustainability topics (mentioned in the “Environment Sustainability” section of the CSR Report) are provided in the following table:

Sustainability topic


Information on product material content laws and regulations


Information on electronic waste laws and regulations, including products, batteries, and packaging

WEEE compliance

Cisco makes the packaging data available for informational purposes only. It may not reflect the most current legal developments, and Cisco does not represent, warrant, or guarantee that it is complete, accurate, or up to date. This information is subject to change without notice.

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