Cisco CBS250-48P-4G Full English Product Description

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

Cisco CBS250-48P-4G Business 250 Series 48-Port Gigabit PoE+ Smart Managed Switch, 370W High Total PoE Budget, 4 Dedicated 1G SFP Uplink Slots, Dual-Stack IPv4/IPv6 Layer 3 Static Routing, Fanless 1RU Rackmount High-Density PoE Switch

2. Official Product Overview

The Cisco CBS250-48P-4G is a high-density full PoE+ smart switch within the Cisco Business 250 Series, designed for medium-to-large enterprise core wiring closets, campus networks, large retail chains and high-density unified voice-video-data deployments. Equipped with abundant PoE power supply and 4 independent Gigabit fiber uplink slots, it integrates data transmission and PoE power delivery in a single 1RU rack unit, eliminating separate power injectors for IP cameras, Wi-Fi 6/6E access points, VoIP phones and thin clients.

This model delivers enterprise-grade wire-speed switching, complete Layer 2 feature toolkit, native dual-stack IPv4/IPv6 Layer 3 static routing, comprehensive multi-layer security and intuitive web-based management, perfectly converging voice, video, data and wireless traffic for multi-department segmented business networks. It features 48 IEEE 802.3at PoE+ Gigabit RJ45 ports plus 4 dedicated Gigabit SFP fiber uplink ports, offering 52 total Gigabit Ethernet interfaces for flexible long-distance fiber interconnection between buildings or branches. Powered by an 800MHz ARM CPU, 512MB DRAM and 256MB flash storage, it provides 104 Gbps switching capacity and 77.38 Mpps wire-speed forwarding rate for 64-byte frames, with a large 3MB shared packet buffer to avoid congestion under heavy concurrent traffic such as mass 4K surveillance streaming and multi-user video conferencesCisco. The integrated high-capacity internal power supply supports a total 370W PoE budget, each copper port can output up to 30W PoE+ power to run high-power PoE endpoints simultaneously.

3. Port & High-Power PoE Hardware Specifications

48 × 10/100/1000BASE-T RJ45 ports, fully compliant with IEEE 802.3at PoE+, maximum 30W power output per single port
Integrated internal power supply, total PoE power budget: 370W Full PoE
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 suite: time-based PoE scheduling, real-time per-port power monitoring, short-circuit & overload auto-cutoff protection
Switching Capacity: 104 Gbps
Forwarding Rate (64-byte packets): 77.38 Mpps
Shared Packet Buffer: 3 MB
MAC Address Table: 8K entries; Jumbo Frame support up to 9000-byte MTU
Dual console ports: RJ45 serial console + mini USB port for offline local CLI configuration
Front-panel USB Type-A port for offline configuration backup & firmware upgrade
Fanless passive cooling design, zero-noise operation for offices, campuses and retail malls
Universal internal AC power supply: 100–240V 50/60Hz global standard
Form Factor: 1RU standard rackmount chassis, support rack mount, wall mount and desktop placement
Dimensions: 445 × 345 × 44 mm (17.5 × 13.59 × 1.73 inches)

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 large-scale multi-workgroup SMB and campus 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
Time-based PoE auto power on/off to eliminate idle power consumption after working hours
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

Operating Temperature: 0°C to 40°C; Storage Temperature: -20°C to 70°C
Operating Humidity: 10%–90% non-condensing relative humidity
Global compliance standards: CE, RoHS, UL, FCC Class A
Warranty: Cisco Limited Lifetime Hardware Warranty

10. Typical Deployment Scenarios

Large office unified voice-data-wireless core switch with mass PoE VoIP phones, PCs and Wi-Fi access points
Shopping mall & factory high-density surveillance system with dozens of 4K PoE IP cameras
School campus main distribution switch for classroom thin clients, wireless APs and video monitoring equipment
Multi-branch retail headquarters core switch with 4 fiber SFP uplinks connecting store branches
Multi-VLAN segmented medium-to-large enterprise network leveraging dual-stack Layer 3 static routing

11. Standard Package Contents

1 × Cisco CBS250-48P-4G High-Power Full 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 CBS250-48P-4G is a high-density full PoE+ 48-port Gigabit smart managed switch equipped with a 370W total PoE budget and 4 dedicated Gigabit SFP fiber uplink ports. Featuring dual-stack IPv4/IPv6 Layer 3 static routing, enterprise QoS, full multi-layer security and fanless silent design, it delivers wire-speed high-capacity data and sufficient full power for high-power IP cameras, Wi-Fi 6 APs and VoIP phones in large offices, retail malls and campus core networks, supporting rack/wall/desktop deployment, energy-saving hardware and Cisco limited lifetime warranty.


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