CBS220-48P-4G-NA Cisco 48-Ports GE PoE 4x1G SFP Managed Switch.

Cisco Smart Managed Gigabit Ethernet Switch 

The Cisco CBS220-48P-4G-NA is a business-class smart managed Ethernet switch engineered for scalable, secure, and high-performance network environments. Designed for small to medium-sized enterprises, this Layer 2 managed switch combines advanced traffic control, Power over Ethernet Plus (PoE+), and simplified management features to support modern IP-based devices and converged networks.

Manufacturer and Model Identification

• Brand: Cisco
• Series: Business 220 Series
• Model Number: CBS220-48P-4G-NA
• Device Type: Smart Managed Network Switch
• Total Ports: 52 Ports

Status Indicators 

• LED indicators for system health and port activity
• Link, activity, and speed status monitoring
• Integrated cooling fan for thermal efficiency

PoE+ Enabled Access Ports

• 48 x Gigabit Ethernet PoE+ ports
• Up to 30W per port
• Total PoE power budget of 382W
• Ideal for VoIP, IoT, and surveillance devices

Dedicated SFP Uplink Interfaces

• 4 x 1000Base-X SFP uplink slots
• Supports long-distance fiber connections
• Reduces network bottlenecks

Optimized Throughput and Packet Handling

• Forwarding rate: 74.38 Mpps (64-byte packets)
• Switching capacity: 104 Gbps
• Buffer memory: 12 MB
• Jumbo frame support up to 9216 bytes

MAC Address and VLAN Scalability

• MAC address table: up to 8,192 entries
• Supports up to 256 VLANs
• Multiple Spanning Tree Protocol instances: 16

Traffic Control and Network Optimization

• VLAN management and tagging (IEEE 802.1Q)
• Link Aggregation Control Protocol (LACP)
• Spanning Tree, Rapid STP, and Multiple STP
• Loopback detection and loop guard

Multicast and Broadcast Management

• IGMP snooping for multicast optimization
• Broadcast storm control
• Multicast storm prevention
• Unknown unicast storm control

Comprehensive Network Protection

• Access Control Lists (ACLs) with up to 512 rules
• Port security and MAC address filtering
• 802.1X authentication support
• Guest VLAN functionality

Authentication and Encryption

• Secure Shell (SSH, SSHv2)
• RADIUS and TACACS+
• SSL-based encryption
• DoS attack prevention

Enhanced Application Performance

• DiffServ and DSCP classification
• Type of Service (ToS) support
• Weighted Round Robin (WRR) scheduling
• Auto Voice VLAN for IP telephony

Flexible Local and Remote Management

• Web-based HTTP/HTTPS interface
• Command Line Interface (CLI)
• SNMP v1, v2c, and v3
• Telnet and SSH access

Industry-Recognized IEEE Standards

• IEEE 802.3, 802.3u, 802.3ab, 802.3z
• IEEE 802.1D, 802.1W, 802.1S
• IEEE 802.1Q and 802.1P
• IEEE 802.3af, 802.3at, 802.3az
• IEEE 802.1X and 802.1AB (LLDP)

Reliable Hardware Specifications

• System memory: 256 MB RAM
• Flash storage: 64 MB
• Dual firmware images for redundancy

Internal Power

• AC input: 100–240V, 50/60 Hz
• Operational power consumption: 478.2 W
• Energy Efficient Ethernet support

Cisco CBS220-48P-4G-NA Managed Switching Scalable Networks

The Cisco CBS220-48P-4G-NA category represents a class of smart managed Ethernet switches engineered to deliver dependable Layer 2 connectivity for growing business environments. This segment focuses on high port density access switching that supports Power over Ethernet while maintaining simplified configuration and ongoing operational stability. Designed for offices, branch locations, retail deployments, and education networks, this category balances performance, affordability, and ease of management, enabling IT teams to expand network infrastructure without unnecessary complexity.

Within this category, the 48-port Gigabit Ethernet form factor is optimized for environments requiring extensive wired device connectivity, including IP phones, wireless access points, security cameras, and workstations. The inclusion of integrated PoE capabilities positions this category as a practical foundation for converged networks where power and data are delivered over a single Ethernet cable. Smart management features further enhance visibility and control, making this category suitable for organizations transitioning from unmanaged switches to more controlled and secure network architectures.

Layer 2 Switching Architecture and Intelligent Management

Switches in the Cisco CBS220-48P-4G-NA category operate with a robust Layer 2 switching architecture designed to efficiently forward Ethernet frames while maintaining predictable network behavior. This category emphasizes intelligent management capabilities that allow administrators to configure VLANs, manage traffic prioritization, and monitor port-level activity without requiring advanced command-line expertise. The web-based management interface associated with this category supports streamlined configuration, reducing deployment time and ongoing administrative overhead.

Layer 2 management within this category enables segmentation of network traffic to improve performance and security across departments, user groups, or application types. Support for multiple VLAN configurations allows businesses to isolate voice, data, and guest traffic while maintaining centralized control. These features are particularly relevant for organizations with limited IT staff that still require enterprise-grade network segmentation and reliability.

Web-Based Configuration and Centralized Visibility

The category emphasizes intuitive management through a graphical web interface that simplifies common network tasks. Administrators can configure ports, assign VLAN membership, and monitor real-time traffic statistics without specialized training. This approach lowers the barrier to entry for managed switching while preserving the benefits of advanced network control. Centralized visibility into port status, link speed, and PoE power consumption enables proactive maintenance and faster troubleshooting.

By focusing on usability, this category supports faster onboarding of new devices and easier network expansions. Configuration consistency across multiple switches can be maintained through standardized templates, ensuring uniform policy enforcement and reducing the likelihood of configuration errors.

Power over Ethernet Capabilities for Modern Devices

The Cisco CBS220-48P-4G-NA category is defined by its integrated Power over Ethernet functionality, which supports the deployment of powered network devices without the need for additional electrical infrastructure. PoE-enabled ports deliver power and data simultaneously, simplifying installation for devices such as VoIP phones, wireless access points, and IP surveillance cameras. This capability reduces cabling complexity and supports flexible device placement throughout office and commercial environments.

High PoE power availability within this category ensures reliable operation for multiple connected devices, even in dense deployments. Intelligent power management features allocate power efficiently across ports, protecting the switch and connected devices from overload conditions. This makes the category well-suited for businesses planning incremental upgrades to PoE-dependent technologies.

Optimized PoE Budget Utilization

Switches in this category are engineered to manage PoE power budgets dynamically, ensuring that connected devices receive consistent power while maintaining overall system stability. Administrators can monitor per-port power consumption and adjust allocations as network requirements evolve. This level of control supports predictable performance for critical devices such as access points and security systems.

Efficient PoE utilization also contributes to energy savings by delivering power only when devices are actively connected. This aligns the category with energy-conscious network design principles and helps organizations manage operational costs over time.

High-Density Gigabit Ethernet Access

The 48-port Gigabit Ethernet configuration central to this category enables high-density access connectivity for mid-sized to large office environments. Each port supports full Gigabit speeds, ensuring sufficient bandwidth for data-intensive applications, cloud services, and unified communications. This density allows organizations to consolidate access switching into fewer devices, simplifying rack layouts and reducing infrastructure sprawl.

High port availability supports scalability by accommodating future device additions without requiring immediate hardware upgrades. As businesses grow, this category provides a stable access layer capable of supporting increased user counts and expanding device ecosystems.

Consistent Throughput and Reliable Switching Performance

Switching performance within this category is designed to handle simultaneous traffic streams across all ports without degradation. Non-blocking architectures and optimized forwarding ensure low latency and consistent throughput, even during peak usage periods. This reliability is critical for maintaining application performance in environments with high user concurrency.

Stable performance also supports real-time services such as voice and video, where packet loss or jitter can negatively impact user experience. The category’s emphasis on dependable switching ensures that essential business communications remain uninterrupted.

SFP Uplink Connectivity for Network Expansion

The inclusion of dedicated SFP uplink ports defines this category as a scalable access solution capable of integrating seamlessly into larger network topologies. These uplinks provide flexible connectivity options to aggregation switches, core networks, or fiber-based backbones. By supporting modular uplinks, the category allows organizations to extend network reach without replacing access layer hardware.

Fiber uplink capability is particularly valuable for multi-floor buildings or campus-style deployments where copper cabling limitations may restrict distance. This ensures that the category remains adaptable to diverse physical environments and evolving infrastructure requirements.

Seamless Integration with Existing Network Infrastructure

Compatibility with standard SFP modules enables straightforward integration with existing Cisco and third-party networking equipment. This interoperability protects prior investments and simplifies network upgrades. The category supports gradual expansion strategies, allowing businesses to enhance network capacity incrementally.

By offering flexible uplink options, this category supports both current operational needs and future network growth, making it a long-term solution for evolving business environments.

Traffic Management and Quality of Service

Quality of Service capabilities are a core aspect of the Cisco CBS220-48P-4G-NA category, ensuring that critical applications receive appropriate bandwidth and priority. Traffic classification and prioritization features help manage congestion by allocating resources based on application type or traffic class. This is essential for maintaining performance of voice, video, and other latency-sensitive services.

By implementing intelligent traffic handling, the category enhances overall network efficiency and user satisfaction. These capabilities allow businesses to align network behavior with operational priorities, supporting consistent service delivery across diverse workloads.

Support for Voice and Video Applications

Optimized handling of voice and video traffic ensures clear communications and smooth collaboration experiences. The category supports prioritization mechanisms that reduce latency and packet loss for real-time streams. This is particularly important in environments relying on IP telephony and video conferencing solutions.

Reliable Quality of Service contributes to professional communication standards, reinforcing the category’s suitability for modern, collaboration-driven workplaces.

Security Features for Controlled Network Access

Security is a fundamental consideration within this category, with features designed to protect network resources and control access at the edge. Managed access control mechanisms help prevent unauthorized devices from connecting to the network. Port-level security and traffic filtering capabilities contribute to a safer networking environment.

These security measures support compliance with internal policies and industry best practices, making the category appropriate for businesses handling sensitive data or operating in regulated industries.

VLAN-Based Segmentation and Access Control

VLAN support enables logical separation of network traffic, reducing the risk of unauthorized access between departments or user groups. This segmentation improves security while also enhancing performance by limiting broadcast traffic. The category’s focus on VLAN-based control provides a practical approach to network segmentation without introducing excessive complexity.

Access control features further enhance protection by defining which devices or users can communicate across network segments. This layered approach supports a more resilient network design.

Energy Efficiency and Sustainable Network Operation

The Cisco CBS220-48P-4G-NA category incorporates energy-efficient technologies that reduce power consumption during periods of low activity. These features align with sustainability initiatives by minimizing environmental impact while maintaining performance. Energy-efficient Ethernet support allows ports to adjust power usage based on link status and traffic levels.

Lower energy consumption contributes to reduced operational costs, making this category attractive for organizations seeking to balance performance with sustainability goals.

Intelligent Power Management Features

Dynamic power adjustment ensures that energy is consumed only when necessary. This intelligent approach supports continuous operation while minimizing waste. The category’s focus on efficiency reflects modern network design priorities where performance and environmental responsibility coexist.

Energy-efficient operation also reduces heat generation, contributing to improved equipment longevity and more stable network environments.

Deployment Flexibility and Physical Design

The physical design considerations within this category support versatile deployment options across various environments. Rack-mountable form factors enable integration into standard network racks, while compact dimensions allow efficient use of space. This flexibility supports installations in data rooms, wiring closets, and branch offices.

Clear port labeling and front-facing interfaces simplify installation and ongoing maintenance. These design elements enhance usability and reduce the risk of errors during configuration or troubleshooting.

Reliability for Continuous Business Operation

Switches in this category are built for continuous operation in demanding business environments. Reliable hardware components and consistent performance characteristics support always-on connectivity. This reliability ensures that critical business functions remain accessible throughout the workday.

Dependable operation reduces downtime and supports productivity, reinforcing the category’s role as a foundational element of modern business networks.

Use Cases Across Multiple Industries

The Cisco CBS220-48P-4G-NA category addresses a wide range of use cases across industries such as education, healthcare, retail, and professional services. High port density and PoE support make it suitable for classrooms, clinics, point-of-sale environments, and office floors. Managed features provide the control needed to support diverse operational requirements.

By offering a balance of performance, management, and affordability, this category adapts to various deployment scenarios while maintaining consistent network quality.

Support for Growing and Distributed Organizations

Organizations with multiple locations benefit from the scalability and manageability offered by this category. Consistent feature sets across deployments simplify standardization and support centralized network policies. This consistency is valuable for businesses expanding geographically or adopting hybrid work models.

The category’s adaptability ensures it remains relevant as organizational needs evolve, supporting long-term network planning strategies.

Foundation for Future Network Enhancements

As networking requirements continue to evolve, the Cisco CBS220-48P-4G-NA category provides a stable foundation for future enhancements. Support for modern Ethernet standards and modular uplinks allows integration with emerging technologies. This future-ready design protects investments and supports gradual modernization.

By focusing on core access layer functionality with smart management, this category enables organizations to build resilient networks capable of adapting to technological change.