Cisco CBS250-24P-4G Full English Product Description

1. Short Sales Title (For Quotation & E-commerce Listing)

Cisco CBS250-24P-4G Business 250 Series 24-Port Gigabit PoE+ Smart Managed Switch, 195W Total PoE Budget, 4 Dedicated 1G SFP Uplink Slots, Dual-Stack IPv4/IPv6 Layer 3 Static Routing, Fanless 1RU Rackmount Switch

2. Official Product Overview

The Cisco CBS250-24P-4G belongs to Cisco Business 250 Series cost-effective smart switches, designed for medium-sized offices, retail chains, school campuses, branch headquarters and mid-density PoE deployments including IP surveillance, VoIP phones and Wi-Fi access points. It delivers enterprise-grade wire-speed switching, complete Layer 2 toolset, native dual-stack Layer 3 static routing, multi-layer network security and simplified unified web management, balancing data, voice, video and wireless traffic without the high cost of fully managed enterprise switches.

This mid-power PoE model integrates 24 IEEE 802.3at PoE+ Gigabit RJ45 ports plus 4 independent dedicated Gigabit SFP fiber uplink slots, forming a total of 28 Gigabit Ethernet interfaces for flexible multi-fiber long-distance uplink expansion. Powered by an 800MHz ARM CPU, 512MB DRAM and 256MB flash storage, it offers 56 Gbps switching capacity and 41.66 Mpps wire-speed forwarding rate for 64-byte frames, with 1.5MB shared dynamic packet buffer to handle concurrent 4K surveillance streaming, multi-user file transfers and real-time video conferences without congestion. The integrated internal power supply provides a 195W total PoE budget, each copper port supports up to 30W PoE+ output for standard Wi-Fi APs, IP cameras and desk phones.

3. Port & PoE Hardware Specifications

24 × 10/100/1000BASE-T RJ45 ports, fully IEEE 802.3at PoE+ compliant, max 30W power per port
Integrated internal power supply, total PoE power budget: 195W
4 × dedicated Gigabit SFP uplink slots (fiber-only non-combo design)
Compatible Cisco SFP transceivers: MGBSX1 multimode, MGBLX1/MGBLH1 single-mode, MGBT1 copper SFP
Intelligent PoE management: time-based PoE scheduling, per-port power monitoring, short-circuit & overload protection
Switching Capacity: 56 Gbps
Forwarding Rate (64-byte packets): 41.66 Mpps
Shared Packet Buffer: 1.5 MB
MAC Address Table: 8K entries; Jumbo Frame support up to 9000-byte MTU
Dual console ports: RJ45 serial console + mini USB port for local offline configuration
Front-panel USB Type-A port for offline config backup & firmware upgrade
Fanless passive cooling design, zero-noise operation for office & education environments
Universal internal AC power supply: 100–240V 50/60Hz global standard

4. Comprehensive Layer 2 Switching Functions

Up to 255 IEEE 802.1Q tagged VLANs, port-based VLAN, voice VLAN, isolated guest VLAN, dedicated management VLAN
8 priority egress queues with Strict Priority / WRR QoS scheduling to prioritize VoIP, surveillance video and business data traffic
IEEE 802.3ad LACP link aggregation, up to 4 LAG groups with maximum 8 ports per group for bandwidth expansion & link redundancy
IGMP Snooping v1/v2/v3, supporting up to 255 multicast groups for IP video surveillance and IPTV
LLDP & LLDP-MED automatic endpoint discovery for IP phones, cameras and wireless access points
Port mirroring, RSTP/MSTP/PVST+ spanning tree protocols to eliminate Layer 2 broadcast loops
Broadcast/multicast/unicast storm control to prevent network flooding failures

5. Native Dual-Stack IPv4 & IPv6 Layer 3 Static Routing

Built-in dual-stack static routing enables direct inter-VLAN communication on the switch, removing dependency on external routers. It supports up to 32 IPv4 static routes, 32 IPv6 static routes and 16 Layer 3 VLAN interfaces, offloading local internal office traffic, reducing core gateway load and lowering latency for multi-department segmented network architectures, ideal for multi-workgroup medium business deployments.

6. Enterprise-Grade Multi-Layer Security Suite

IEEE 802.1X port-based authentication with RADIUS centralized access control
Port security, static MAC address binding, automatic blocking of unauthorized network terminals
DoS attack suppression, multi-layer ACL traffic filtering to block malicious access
Encrypted management channels: HTTPS web GUI, SSH CLI, SNMPv3 secure remote monitoring
Syslog event logging, built-in cable diagnostic tools, mandatory password complexity policy
Independent guest network isolation to protect internal confidential business data

7. Energy-Saving Green Technologies

IEEE 802.3az Energy Efficient Ethernet (EEE): auto power reduction for idle Ethernet links
Dynamic power tuning based on cable length to cut unnecessary power loss
Port LED dimming or full shutdown mode for unmanned wiring closets
Low-power fanless hardware design with minimal heat generation and extended service lifespan

8. Multi-Mode Local & Remote Management

Intuitive graphical web management interface (HTTP/HTTPS) with basic & advanced operation modes
Dual offline local console access: serial RJ45 + mini USB port for CLI configuration
SSH secure remote command line management
SNMP v1/v2c/v3 compatible with third-party network monitoring platforms
TFTP / offline USB firmware upgrade, SNTP time synchronization, ping & traceroute diagnostic tools
Single IP management for centralized batch control of multiple CBS250 series switches
Fully compatible with Cisco Business Dashboard & Cisco Business Mobile App for unified topology visualization and one-click batch configuration

9. Physical & Environmental Parameters

Form Factor: 1RU standard rackmount chassis, support rack mount, wall mount and desktop placement
Dimensions: 445 × 299 × 44 mm (17.5 × 11.77 × 1.73 inches)
Operating Temperature: 0°C to 40°C; Storage Temperature: -20°C to 70°C
Global compliance standards: CE, RoHS
Warranty: Cisco Limited Lifetime Hardware Warranty

10. Typical Deployment Scenarios

Medium office unified voice-data-wireless network: IP phones, PCs and multiple Wi-Fi access points
Retail store surveillance system with dozens of PoE IP cameras for store monitoring
Branch office core distribution switch with 4-fiber SFP uplinks to headquarters or remote departments
School classroom centralized power supply for thin clients and wireless APs
Multi-VLAN segmented medium business network leveraging dual-stack Layer 3 static routing

11. Standard Package Contents

1 × Cisco CBS250-24P-4G PoE+ Smart Gigabit Switch

1 × Global standard AC power cord

Rack mounting brackets and installation screws

Quick Start Guide & global regulatory compliance documents

Short Commercial Version (For Product Ads & Listing Titles)

The Cisco CBS250-24P-4G is a mid-power 24-port Gigabit PoE+ smart managed switch featuring a 195W total PoE budget and 4 dedicated Gigabit SFP fiber uplink ports. Equipped with dual-stack IPv4/IPv6 Layer 3 static routing, enterprise QoS, full multi-layer security and fanless silent design, it delivers stable wire-speed data and power supply for IP cameras, wireless APs and VoIP phones in medium businesses, retail chains and campuses, supporting rack/wall/desktop deployment, energy-saving hardware and Cisco limited lifetime warranty.


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