Cisco Business CBS220-24T-4X Full English Product Description

1. Product Overview

Model Suffix Definition

• 24: 24×10/100/1000BASE-T non-PoE copper access ports
• T: Data-only RJ45 ports without PoE power supply
• 4X: Four dedicated 10G SFP+ uplink slots (10 Gigabit fiber uplink, backward compatible with 1G SFP modules)
  No "-E/D" suffix means it adopts standard 19-inch 1RU metal rack-mount chassis with built-in internal universal AC power supply, no desktop external DC adapter required.
  This web-managed smart switch delivers wire-speed non-blocking Gigabit switching for office PCs, printers, high-capacity NAS storage and non-powered Wi-Fi wireless APs. Equipped with 10G high-speed uplink capacity, complete enterprise-grade Layer 2 feature suite, advanced QoS and multilayer hardware security, it is an ideal scalable managed access switch for SMBs requiring future-proof high-bandwidth fiber upstream.

2. Hardware Port Specifications

• Access Ports: 24 × auto-sensing 10/100/1000BASE-T RJ45 copper ports, non-PoE, Auto MDI/MDI-X, Cat5e/Cat6 cabling compatible
• Uplink Interfaces: 4 × dedicated 10G SFP+ fiber slots; support 10G SFP+ transceivers, 1G SFP modules and 10G DAC copper cables for long-distance high-speed aggregation to core layer switches
• Management Interfaces: RJ45 serial console port, HTML5 encrypted web management GUI, Bluetooth mobile configuration, SNMP v1/v2c/v3
• LED Indicators: Separate front-panel LEDs for global power status, per-port link/activity, 10/100/1000Mbps speed and SFP+ uplink running speed indicator
• Hardware Reset Button: Recessed physical reset button for one-click restoration of factory default configurations
• Cooling Architecture: Fully fanless passive heat sink design with zero operational noise, suitable for classrooms, medical clinics and quiet open office environments
• Power Mode: Integrated internal wide-range universal AC power supply (100–240V 50/60Hz); zero PoE power budget for all copper data ports

3. Core Performance Parameters

• Switching Capacity: 168 Gbps non-blocking wire-speed switching
• 64-byte Packet Forwarding Rate: 125 Mpps
• MAC Address Table Depth: 16,384 MAC entries
• Jumbo Frame Support: Up to 10,240 bytes for large design files and 4K surveillance video transmission
• Energy Efficiency Standard: IEEE 802.3az EEE auto power cut for idle Ethernet links
• Max Full Traffic Load Power Consumption: ~28 W
• Idle Standby Power Draw: ~14 W
• Input Power: Built-in internal universal PSU, wide AC input 100–240V 50/60Hz

4. Physical & Environmental Specifications

• Form Factor: Standard full-width 1RU metal rack-mount chassis, desktop flat placement optional
• Dimensions (W × D × H): 445 mm × 310 mm × 44 mm
• Net Weight: 2.38 kg (5.25 lb)
• Operating Temperature Range: 0 °C to 50 °C (32 °F–122 °F), certified for out-of-wiring-closet deployment
• Storage Temperature Range: -25 °C to 70 °C (-13 °F–158 °F)
• Relative Humidity: 10%–90% non-condensing humidity during operation and storage
• Compliance Certifications: CE, FCC, UL, RoHS compliant; Cisco limited lifetime hardware warranty with advance replacement service

5. Complete Layer 2 Smart Switch Feature Set

• IEEE 802.1Q VLAN, supports up to 4094 VLAN IDs, dedicated auto voice VLAN optimized for mass IP phone deployment
• Full STP protocol suite: STP, RSTP, MSTP with fast convergence to eliminate Layer 2 broadcast forwarding loops
• Static LAG & IEEE 802.3ad LACP dynamic link aggregation for uplink bandwidth bundling
• IGMP Snooping v1/v2/v3 + Multicast VLAN Replication to reduce multicast bandwidth waste for multi-camera surveillance and IPTV streams
• Auxiliary L2 Tools: Embedded cable diagnostic tool, hardware port isolation, broadcast/multicast storm suppression, automatic idle-port power shutdown

6. Enterprise-Grade Multi-Layer Network Security

• 802.1X port-based authentication, MAC authentication and guest VLAN access control
• Port Security with configurable MAC address learning limits to defend against malicious MAC flooding attacks
• IPv4/IPv6 bidirectional ACL for fine-grained inbound and outbound traffic filtering
• Secure management transmission channels: HTTPS encrypted web UI, SSH console CLI, SNMPv3 encryption
• Anti-spoofing defense: Dynamic ARP Inspection (DAI), IP Source Guard to block IP/MAC address spoofing
• Full-port surge and short-circuit protection for all RJ45 copper ports to prevent hardware burnout from faulty Ethernet cables

7. Advanced Hardware QoS Intelligent Traffic Prioritization

• 4 independent hardware priority queues per Gigabit port
• Automatic identification and mapping of 802.1p CoS and DSCP traffic marking without manual configuration
• Hybrid Strict Priority + WRR scheduling to guarantee ultra-low latency for VoIP voice and real-time 4K surveillance video
• Port ingress/egress bandwidth policing and traffic shaping to avoid single-port bandwidth congestion

8. Multi-Mode Local & Centralized Management Advantages

• Local Management: Intuitive HTML5 web GUI, RJ45 console CLI, Bluetooth wireless mobile configuration
• Cross-Site Centralized Management: Compatible with Cisco Business Dashboard and Cisco DNA Center for unified multi-branch monitoring, batch configuration push and zero-touch provisioning (ZTP)
• Firmware & Config Operations: TFTP/HTTP batch firmware upgrade, one-click full-config backup & restore
• Monitoring Utilities: SNMP v1/v2c/v3, NTP time synchronization, real-time port traffic statistics, sFlow traffic sampling
• Standalone operation only; horizontal stacking function is exclusive to non-4X 4G uplink CBS220 models
• Dual deployment modes: Standard rack mounting in wiring closets or hidden desktop placement
• Fanless silent design fits noise-restricted classrooms, medical clinics and open office spaces
• 10G SFP+ high-speed uplink reserves bandwidth expansion space for future enterprise network upgrades

9. Typical Application Scenarios

• Medium-to-high density non-PoE office managed access layer for bulk staff PCs and design workstations
• Media studios, video editing labs and large-capacity NAS storage interconnection requiring 10G fiber uplink
• School main computer labs and libraries with silent fanless hardware requirements
• Scalable SMB networks reserving 10G high-bandwidth upstream upgrade capability
• Remote satellite branch main wiring closets requiring high-speed fiber aggregation to core layers
• Distributed low-speed IoT sensor deployment outside centralized wiring closets without PoE power demand

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