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Cisco CBS220-48P-4GNA-RF Business Switch - 48 Port Gigabit PoE - 4 SFP Uplinks - Layer 2 Managed - 382W Budget - Rack-Mountable - Refurbished
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Product Features
Technical Overview
This switch operates at Gigabit Ethernet speeds across all ports, supporting both 10/100/1000Base-T over twisted pair and 1000Base-X over fiber via the SFP uplinks. The modular design includes four dedicated SFP expansion slots that accept mini-GBIC transceivers for connecting to fiber backbone networks or extending distances beyond copper limitations. The switching architecture provides wire-speed performance with non-blocking throughput for high-demand workgroups.
Power management features include per-port PoE configuration, priority settings, and monitoring through the management interface. The internal power supply delivers stable voltage to connected devices while maintaining efficient 53W operational power consumption. Network protocols supported include IEEE 802.3af/at for PoE, 802.1Q for VLANs, 802.1p for QoS, and spanning tree protocols for network redundancy.
Relevant factors for this section include Total Number of Network Ports, Uplink Port, Modular, Media Type Supported. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Key Product Advantages
This Cisco Business switch offers several advantages for organizations building or expanding their network infrastructure. The combination of high port density, substantial PoE budget, and fiber uplink capability creates a versatile switching solution that can grow with business needs.
High-Density PoE Deployment
With 48 PoE ports and 382W total budget, this switch can power numerous devices simultaneously while leaving headroom for future expansion. This eliminates the need for separate power injectors and simplifies cable management.
- Supports PoE+ (802.3at) devices
- Per-port power management
- Power priority configuration
Fiber Connectivity Ready
The four SFP slots provide flexible uplink options for connecting to fiber backbone networks, extending distances beyond 100 meters, or linking to other switches in cascaded topologies.
- 1000Base-X fiber support
- Copper SFP compatibility
- Mixed media deployment
Enterprise Management Features
Layer 2 management capabilities include VLAN segmentation, QoS prioritization, port security, and traffic monitoring through a web interface or command line. These features provide control over network performance and security.
- VLAN support for network segmentation
- QoS for voice/video traffic
- Port security and access control
Deployment / Use Cases
The CBS220-48P-4GNA-RF switch is well-suited for various business networking scenarios where reliable, managed connectivity with PoE support is required. Its 48-port configuration makes it ideal for central switching in medium-sized offices, retail environments, or educational facilities where multiple devices need both network access and power.
In VoIP deployments, this switch can power dozens of IP phones while providing quality of service prioritization for voice traffic. For wireless networks, it can serve as the backbone for multiple access points, delivering both data connectivity and power. Security installations benefit from the ability to power IP cameras and access control systems while maintaining network segmentation for surveillance traffic.
Office Network Core
Serve as the main switch for an office with 30-40 workstations, printers, and shared devices, with remaining ports for future expansion. The PoE budget supports conference room phones and wireless access points.
Retail or Hospitality Backbone
Connect point-of-sale systems, digital signage, inventory scanners, and security cameras in a single managed switch. The fiber uplinks can link multiple floors or buildings while maintaining performance.
Physical Profile
This switch features a standard 1U rack-mountable design measuring 1.73 inches in height, 17.32 inches in width, and 10.12 inches in depth. The compact form factor fits most 19-inch server racks and network cabinets. Front-panel indicators provide status visibility for power, system, and individual port activity. The 11.66-pound weight includes all internal components, making it manageable for single-person installation in most rack environments.
- Width
- 17.32" (440 mm)
- Depth
- 10.12" (257 mm)
- Height
- 1.73" (44 mm)
- Weight
- 11.66 lb (5290 g)
Highlights
- 48 Gigabit Ethernet ports with Power over Ethernet support
- 382W total PoE budget for powering multiple devices simultaneously
- 4 SFP uplink slots for fiber or copper expansion
- Layer 2 managed switching with VLAN and QoS capabilities
- Rack-mountable 1U form factor for standard 19-inch installations
- Gigabit Ethernet performance across all ports
- Web-based management interface for configuration and monitoring
- 3-year limited warranty on refurbished unit
- Supports both twisted pair and fiber optic media types
- 53W operational power consumption for energy efficiency
Specifications
| Specifications | |
|---|---|
| Manufacturer | Cisco Systems, Inc |
| Manufacturer Part Number | CBS220-48P-4GNA-RF |
| Brand Name | Cisco |
| Product Line | Business |
| Product Series | 220 |
| Product Model | CBS220-48P-4G |
| Product Name | Business CBS220-48P-4G Ethernet Switch |
| Product Condition | Refurbished |
| Product Type | Ethernet Switch |
| Interfaces/Ports | |
| Total Number of Network Ports | 48 |
| Uplink Port | Yes |
| Modular | Yes |
| Port/Expansion Slot Details | 48 x Gigabit Ethernet PoE,4 x Gigabit Ethernet Expansion Slot |
| Media & Performance | |
| Media Type Supported | Optical Fiber,Twisted Pair |
| Ethernet Technology | Gigabit Ethernet |
| Network Technology | 10/100/1000Base-T,1000Base-X |
| I/O Expansions | |
| Total Number of Expansion Slots | 4 |
| Expansion Slot Type | SFP (mini-GBIC) |
| Number of SFP Slots | 4 |
| Network & Communication | |
| Layer Supported | 2 |
| Management & Protocols | |
| Manageable | Yes |
| Power Description | |
| PoE (RJ-45) Port | Yes |
| PoE Budget | 382 W |
| Power Source | Power Supply |
| Power Consumption | 53 W |
| Physical Characteristics | |
| Form Factor | Rack-mountable |
| Height | 1.73" (44 mm) |
| Width | 17.32" (440 mm) |
| Depth | 10.12" (257 mm) |
| Weight (Approximate) | 11.66 lb (5290 g) |
| Miscellaneous | |
| Environmental Compliance | Waste Electrical and Electronic Equipment Directive (WEEE) |
| Warranty | |
| Limited Warranty | 3 Year |
User Manual
FAQ
How many devices can this switch power with PoE?
The switch has a 382W total PoE budget across 48 PoE-capable ports. The actual number of devices depends on their individual power requirements. For example, it could power approximately 24 devices requiring 15.4W each (802.3af standard) or 12 devices requiring 30W each (802.3at PoE+). The management interface allows configuration of power priorities to ensure critical devices remain powered during budget constraints.
What types of SFP modules are compatible with this switch?
The four SFP slots accept standard mini-GBIC transceivers. Compatible modules include 1000BASE-SX for multimode fiber up to 550 meters, 1000BASE-LX for single-mode fiber up to 10 kilometers, and 1000BASE-T for copper connections up to 100 meters. The switch automatically detects SFP module type and configures the appropriate settings. Cisco-branded and third-party compatible SFP modules that meet industry standards are supported.
What management features does this Layer 2 switch provide?
This managed switch offers comprehensive Layer 2 features including VLAN support (802.1Q) for network segmentation, Quality of Service (802.1p) for traffic prioritization, port security with MAC address filtering, spanning tree protocols for redundancy, and IGMP snooping for multicast traffic management. Configuration is available through a web browser interface, command line interface, or SNMP for integration with network management systems.
Can this switch be used in a stack or cascade configuration?
Yes, the switch supports cascading to other network devices through its uplink ports. The four SFP slots provide flexible options for connecting switches in daisy-chain or star topologies using fiber or copper connections. While not a stackable switch with single management interface, multiple units can be interconnected and managed individually to expand port count across a network. VLAN configurations can span multiple switches for consistent policy enforcement.
What is the difference between this refurbished unit and a new switch?
This refurbished Cisco Business CBS220-48P-4GNA-RF has been professionally tested, cleaned, and restored to full working condition. It includes the same 3-year limited warranty as comparable new units. Refurbished switches undergo functionality verification of all ports, power systems, and management features. Cosmetic condition may show minor signs of previous use, but all technical specifications and performance match new units. This provides a cost-effective alternative while maintaining Cisco reliability and support.
What cooling and environmental requirements does this switch have?
The switch includes internal fans for cooling and is designed for operation in standard office environments. It should be installed in a well-ventilated rack with adequate airflow front-to-back. Operating temperature range is typically 32°F to 104°F (0°C to 40°C) with 10% to 90% non-condensing humidity. The 53W power consumption generates minimal heat compared to higher-power switches. For optimal performance, ensure rack ventilation meets manufacturer recommendations and avoid blocking air intakes or exhausts.
| Qty | Price | Available |
|---|
