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

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

Cisco CBS250-48T-4G Business 250 Series 48-Port Gigabit Non-PoE Smart Managed Switch, 4 Dedicated 1G SFP Uplink Slots, Dual-Stack IPv4/IPv6 Layer 3 Static Routing, Fanless 1RU Rackmount High-Density Data Switch

2. Official Product Overview

The Cisco CBS250-48T-4G is a high-density non-PoE smart switch from Cisco Business 250 Series, engineered for medium-to-large office main distribution wiring closets, enterprise back offices, school campuses and retail headquarters focusing on data-only connectivity. It delivers enterprise-grade wire-speed switching performance, full Layer 2 feature set, native dual-stack IPv4/IPv6 Layer 3 static routing, robust multi-layer security and user-friendly web management, without extra PoE power cost for environments deploying separately powered wireless APs, desktop PCs, NAS storage, POS terminals and workstations.

This model integrates 48×10/100/1000BASE-T copper RJ45 data ports plus 4 independent dedicated Gigabit SFP fiber uplink slots, offering 52 total Gigabit Ethernet interfaces to support multi-fiber long-distance inter-building or cross-branch uplink expansion. Powered by an 800MHz ARM processor, 512MB DRAM and 256MB flash memory, it delivers 104 Gbps switching capacity and 77.38 Mpps wire-speed forwarding rate for 64-byte frames, equipped with a large 3MB shared packet buffer to eliminate congestion under heavy concurrent traffic such as bulk file transfers, multi-user video conferencing and centralized surveillance data streaming.

3. Port & Hardware Specifications

48 × 10/100/1000Mbps RJ45 data-only ports (No PoE support)
4 × dedicated Gigabit SFP uplink slots (fiber-only non-combo design)
Compatible Cisco SFP transceivers: MGBSX1 multimode, MGBLX1/MGBLH1 single-mode, MGBT1 copper SFP
Internal universal AC power supply: 100–240V 50/60Hz global standard
Silent fanless passive cooling design, zero-noise operation for office and campus environments
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
Form Factor: 1RU standard rackmount chassis, support rack mount, wall mount and desktop placement
Dimensions: 445 × 288 × 44 mm (17.5 × 11.33 × 1.73 inches)Cisco

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 reliance 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
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
Warranty: Cisco Limited Lifetime Hardware Warranty

10. Typical Deployment Scenarios

Medium & large enterprise main distribution switch for hundreds of office PCs, network printers and NAS storage
School campus core wiring closet with 4-fiber SFP uplinks connecting multi-building classrooms and offices
Retail headquarters back-office network for mass POS terminals and separately powered Wi-Fi APs
Multi-VLAN segmented enterprise network leveraging dual-stack Layer 3 static routing for department isolation
Branch central switch for data aggregation without PoE-powered endpoints

11. Standard Package Contents

1 × Cisco CBS250-48T-4G Non-PoE Gigabit Smart 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 CBS250-48T-4G is a high-density non-PoE 48-port Gigabit smart managed switch equipped with 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 transmission for workstations, storage and wireless APs in medium-to-large businesses and campus core networks, supporting rack/wall/desktop deployment, energy-saving hardware and Cisco limited lifetime warranty.


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