Cisco Business CBS250-8P-2G Full English Product Description

1. Product Overview

The Cisco CBS250-8P-2G is a fanless Layer 3 smart-managed Gigabit PoE compact switch from the Cisco Business 250 Series, designed for small office edge wiring closets, retail kiosks, quiet classroom labs and converged small-scale voice-data networks.

Model Suffix Definition

• 8: 8×10/100/1000BASE-T Gigabit RJ45 PoE access ports
• P: IEEE 802.3af PoE, max 15.4W power per port
• 2G: Two dedicated 1G SFP combo uplink ports for long-distance fiber and copper upstream aggregation
  This web-managed switch adds native Layer 3 static routing capability on the basis of full enterprise-grade Layer 2 functions. It delivers wire-speed non-blocking switching for office PCs, printers, small-capacity NAS storage and low-power wireless APs. With silent fanless passive cooling, complete multilayer security and diversified local/centralized management, it serves as an ideal cost-effective managed PoE access switch for small businesses with basic IT operation demands.

2. Hardware Port Specifications

• Access Ports: 8 auto-sensing 10/100/1000BASE-T RJ45 PoE ports, IEEE 802.3af compliant, Auto MDI/MDI-X, Cat5e/Cat6 cabling compatible
• Total PoE Power Budget: 67W, supporting dynamic power allocation with user-configurable port priority under overload conditions
• Uplink Interfaces: 2 dedicated 1G SFP combo slots, compatible with standard 1G SFP transceivers and DAC cables for long-distance upstream aggregation
• Management Interfaces: Mini USB serial console port, HTML5 encrypted web management GUI, Bluetooth mobile configuration, SNMP v1/v2c/v3
• LED Indicators: Separate front-panel LEDs for global power, per-port link/activity, 10/100/1000Mbps speed and SFP uplink running status
• Hardware Reset Button: Recessed physical reset button for one-click factory default restoration
• Cooling Architecture: Fully fanless passive heat sink with zero operational noise, suitable for clinics, libraries and quiet open office spaces
• Power Supply: Wide-range external DC power adapter (100–240V 50/60Hz)

3. Core Performance Parameters

• Switching Capacity: 20 Gbps non-blocking wire-speed switching
• 64-byte Packet Forwarding Rate: 14.88 Mpps
• MAC Address Table Depth: 8,192 MAC entries
• Jumbo Frame Support: Up to 9216 bytes for large design files and surveillance video transmission
• Energy Efficiency: IEEE 802.3az EEE auto power shutdown for idle links
• Max Full Traffic & PoE Load Power Consumption: ~78 VA
• Idle Standby Power Draw: ~8 W

4. Physical & Environmental Specifications

• Form Factor: Compact mini metal chassis, pre-drilled wall-mount holes on the bottom panel
• Dimensions (W × D × H): 160 mm × 185 mm × 44 mm
• Net Weight: 0.48 kg (1.06 lb)
• Operating Temperature: -5 °C to 50 °C (23 °F–122 °F), certified for out-of-wiring-closet deployment
• Storage Temperature: -25 °C to 70 °C (-13 °F–158 °F)
• Relative Humidity: 10%–90% non-condensing humidity
• Compliance Certifications: CE, FCC, UL, RoHS compliant; Cisco limited lifetime hardware warranty

5. Complete Layer 2 + Native Layer 3 Feature Suite

Layer 2 Full Smart Switch Functions

• IEEE 802.1Q VLAN, supports up to 4094 VLAN IDs, dedicated voice VLAN optimized for mass IP phone deployment
• Full STP suite: STP, RSTP, MSTP with fast convergence to eliminate Layer 2 broadcast 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
• Auxiliary L2 Tools: Built-in cable diagnostics, hardware port isolation, broadcast storm suppression, automatic power-off for disconnected idle ports

Exclusive Layer 3 Static Routing (CBS250 Series Highlight)

• IPv4/IPv6 static inter-VLAN routing to realize cross-VLAN communication without additional standalone core routers
• Supports up to 128 static routing entries for segmented small business network layout planning

6. Intelligent IEEE 802.3af PoE Power Management

• Automatically detects IEEE 802.3af PD devices to match output wattage without manual configuration
• User-adjustable PoE port priority to protect mission-critical surveillance cameras and wireless APs under power overload
• Time-based scheduled PoE power on/off to cut energy consumption during off-business hours
• Real-time global and per-port PoE power statistics displayed on web GUI and front panel indicator LEDs
• Multi-layer hardware protection: Short-circuit, over-current, over-voltage, over-temperature automatic thermal shutdown for all PoE ports
• Perpetual PoE maintains stable power output during switch reboot to avoid offline surveillance and voice terminals

7. Enterprise-Grade Multi-Layer Network Security

• 802.1X port authentication, MAC authentication and guest VLAN access control
• Port Security with configurable MAC address limits to defend against malicious MAC flooding attacks
• IPv4/IPv6 bidirectional ACL for fine-grained inbound and 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

8. Advanced Hardware QoS Traffic Prioritization

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

9. Multi-Mode Local & Centralized Management Advantages

• Local Management: 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 & Configuration 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 feature is exclusive to "-4G" 1G uplink CBS250 rack models
• Dual deployment modes: Desktop placement or hidden wall mounting under desks and cabinets
• Fanless silent design fits noise-restricted classrooms, medical clinics and open office spaces
• 1G SFP uplink reserves long-term bandwidth expansion space for future enterprise network upgrades

10. Typical Application Scenarios

• Mini office PoE workgroups equipped with enterprise VoIP phones and low-power Wi-Fi wireless APs
• Small retail kiosks deploying entry-level PoE multi-megapixel surveillance cameras
• Classroom and library quiet monitoring zones requiring fanless silent managed PoE hardware
• Segmented small business networks with demand for Layer 3 inter-VLAN static routing
• Remote edge sites requiring independent long-distance Gigabit fiber uplink aggregation
• Distributed low-bandwidth IoT sensor deployment without high-power PoE++ requirements

E-commerce Short Sales Title

Cisco Business CBS220-8T-E-2G | 8-Port PoE Gigabit Smart Managed Switch, External DC Desktop Power, 67W PoE Budget, 2×1G SFP Uplinks, Fanless Silent Mini Chassis, Layer3 SMB Web-Managed Network Switch with Static Routing