Cisco Business CBS220-48P-4X Full English Product Description

1. Product Overview

Model Suffix Definition

• 48: 48×10/100/1000BASE-T Gigabit RJ45 PoE access ports
• P: IEEE 802.3af/at PoE+, maximum 30W power per port
• 4X: Four dedicated 10G SFP+ uplink slots, backward compatible with 1G SFP transceivers and 10G DAC cables
  No "-E/D" suffix means it adopts standard 19-inch 1RU metal rack chassis with built-in internal wide-range AC power supply, no external desktop DC adapter required.
  This web-managed smart switch features a total 382W PoE power budget, dynamically powering enterprise VoIP phones, low-medium power Wi-Fi 5/6 wireless APs and entry-level multi-megapixel surveillance cameras. Equipped with future-ready 10G high-bandwidth uplinks, complete enterprise-grade Layer 2 feature suite, intelligent scheduled PoE control and multilayer hardware security, it is a scalable cost-effective managed PoE access switch for SMBs with basic IT operation teamsCisco.

2. Hardware Port Specifications

• Access Ports: 48 auto-sensing 10/100/1000BASE-TX RJ45 PoE+ ports, fully compliant with IEEE 802.3af / 802.3at, Auto MDI/MDI-X, Cat5e/Cat6 cabling compatible
• Total PoE Power Budget: 382W, intelligent dynamic power allocation with user-configurable port power priority under overload conditionsCisco
• Uplink Interfaces: 4 dedicated 10G SFP+ fiber slots; support 10G SFP+ optical 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: Independent front-panel LEDs for global power status, per-port link/activity, 10/100/1000Mbps speed, real-time per-port PoE power draw and PoE overload warning alarm
• 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 spaces
• Power Mode: Integrated internal wide-range AC PSU (100–240V 50/60Hz), no external DC wall adapter needed

3. Core Performance Parameters

• Switching Capacity: 216 Gbps non-blocking wire-speed switching
• 64-byte Packet Forwarding Rate: 160.71 Mpps
• MAC Address Table Depth: 16,384 MAC entries
• Jumbo Frame Support: Up to 10,240 bytes for large-capacity 4K surveillance video and bulk file transmission
• Energy Efficiency Standard: IEEE 802.3az EEE auto power shutdown for idle Ethernet links
• Max Full PoE & Traffic Load Power Consumption: ~490 VA
• Idle Standby Power Draw: ~36 W
• Packet Buffer: 4.1 Mb shared packet buffer

4. Physical & Environmental Specifications

• Form Factor: Standard full-width 1RU metal rack-mount chassis, desktop flat placement optional
• Dimensions (W × D × H): 445 mm × 330 mm × 44 mm
• Net Weight: 3.35 kg (7.39 lb), heavier than non-PoE CBS220-48T-4X variant
• 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

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
• Multicast Optimization: IGMP Snooping v1/v2/v3 + Multicast VLAN Replication to reduce 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 cutoff

6. Intelligent PoE+ Power Management

• Automatic detection of IEEE 802.3af / 802.3at PD devices to dynamically match output wattage without manual setup
• User-configurable PoE port priority to protect mission-critical PTZ cameras and Wi-Fi APs during power overload
• Time-based scheduled PoE power on/off to cut energy consumption during off-business hours
• Real-time global & per-port PoE power statistics visible via web GUI and front panel indicator LEDs
• Multi-layer hardware protection: Short-circuit, over-current, over-voltage and thermal automatic shutdown for all PoE ports
• Perpetual PoE retains stable power output during switch reboot to avoid offline surveillance and voice terminals

7. 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/outbound traffic filtering
• Secure management channels: HTTPS encrypted web UI, SSH console CLI, SNMPv3 encrypted transmission
• 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 against faulty Ethernet cables

8. Advanced Hardware QoS Traffic Prioritization

• 4 independent hardware priority queues per Gigabit port
• Automatic identification and mapping of 802.1p CoS and DSCP marked packets
• Hybrid Strict Priority + WRR scheduling to minimize latency and jitter for VoIP voice and real-time surveillance video
• Port ingress/egress bandwidth policing and traffic shaping to avoid single-port bandwidth congestion

9. Multi-Mode Local & Centralized Management

• 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 for single switch
• Monitoring Utilities: SNMP v1/v2c/v3, NTP time synchronization, real-time port traffic statistics, sFlow traffic sampling
• Standalone operation only; horizontal hardware stacking function is exclusive to CBS220 4G 1G uplink models, unavailable on 4X 10G uplink variants
• Dual deployment modes: Standard rack mounting in wiring closets or flat desktop placement
• Fanless silent design fits noise-restricted classrooms, medical clinics and open office environments
• 10G SFP+ high-speed uplink reserves abundant bandwidth expansion space for future enterprise network upgrades

10. Typical Application Scenarios

• Medium-to-large office PoE workgroups equipped with enterprise VoIP phones and low-power Wi-Fi 5/6 wireless APs
• Large retail shopping centers deploying entry-level PoE+ multi-megapixel surveillance cameras
• University main campus labs and library quiet monitoring zones with silent hardware requirements
• Distributed smart building IoT aggregation for voice intercoms and low-power wireless gateways
• Future-proof medium-large branch wiring closets with demand for high-speed 10G fiber uplink aggregation to core network layers
• Cost-optimized converged voice & surveillance networks without high-wattage 60W PoE++ PTZ camera loads

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