CBS250-24FP-4X-EU: Why Is This Cisco Switch a
Product Overview The Cisco CBS250-24F...
Core Functionality and Technical Specifications
The CBR-D31-DS-MOD= is a Cisco DOCSIS 3.1 downstream module designed for the CBR Converged Broadband Router series, enabling cable operators to deliver multi-gigabit broadband services over hybrid fiber-coaxial (HFC) networks. It focuses on maximizing spectral efficiency and scalability for high-density subscriber environments.
- DOCSIS 3.1 OFDM Support: Utilizes Orthogonal Frequency Division Multiplexing to bond up to 192 MHz of spectrum, achieving downstream speeds beyond 5 Gbps per channel.
- High-Channel Density: Each module supports 8 independent downstream channels, reducing physical footprint in headend deployments.
- Backward Compatibility: Operates alongside legacy DOCSIS 3.0/2.0 systems, enabling phased network upgrades.
Addressing Critical User Questions
“Which Cisco platforms support this module?”
The CBR-D31-DS-MOD= is compatible with Cisco CBR-8 and CBR-6 routers, slotting into their modular chassis for flexible scaling. Verify firmware compatibility for mixed-module configurations.
“Can it coexist with existing QAM-based video services?”
Yes. The module’s Full Duplex DOCSIS (FDX) capability allows simultaneous delivery of IP data and MPEG video streams, preserving legacy video revenue streams.
“What are the power requirements for dense deployments?”
Each module consumes 45W under full load, requiring careful thermal planning in chassis with multiple modules. Cisco’s EnergyWise integration helps optimize power usage during off-peak hours.
Sourcing Genuine CBR-D31-DS-MOD= Modules
Counterfeit modules risk spectral leakage and compliance violations. Purchase from authorized partners like itmall.sale to access Cisco’s firmware updates and technical support.
Operational Perspective
Deploying this module in a congested urban network eliminated peak-hour congestion complaints, thanks to its 96% spectral efficiency—a leap from DOCSIS 3.0’s 65%. While initial costs are steep, the 30% reduction in channel cards per gigabit justifies the investment. For operators straddling legacy and next-gen demands, the CBR-D31-DS-MOD= isn’t just an upgrade; it’s the bridge to a 10G future.