Cisco CBS250 Smart 24-port GE, 4x1G SFP

Supports 24 Gigabit Ethernet ports and 4 SFP ports with a 56 Gbps switching capacity. Handles jumbo frames up to 9K bytes (default MTU 2K). Features an 8K MAC address table, 256 MB flash, 512 MB DRAM, and 800 MHz ARM CPU. Dimensions: 445×240×44 mm; weight: 2.63 kg.

SKU: CBS250-24T-4G-EU Category:

Technical Specifications

Performance

  • Switching Capacity: 56 Gbps
  • Forwarding Rate (64-byte packets): 41.66 Mpps
  • Packet Buffer Memory: 1.5 MB
  • MAC Address Table: 8K entries
  • Jumbo Frame Support: Up to 9K bytes (default MTU: 2K bytes)

Hardware & System

  • CPU: 800 MHz ARM
  • Memory: 512 MB DRAM
  • Flash Storage: 256 MB
  • Power Consumption:
    • 110V: 25.91W
    • 220V: 25.63W
  • Heat Dissipation: 89.13 BTU/hr
  • Buttons: Reset button
  • LED Indicators: System, Link/Activity, Speed
  • Cabling Type: UTP Cat 5e or better for 1000BASE-T

Ports & Interfaces

  • Total Ports: 28 Gigabit Ethernet
  • RJ-45 Ports: 24 × 10/100/1000BASE-T
  • SFP Ports: 4 × 1G SFP
  • Console Ports: Mini USB Type-B and RJ-45
  • USB Slot: 1 × USB Type-A (front panel)

Environmental & Physical

  • Operating Temperature: -5°C to 50°C
  • Storage Temperature: -25°C to 70°C
  • Operating/Storage Humidity: 10% to 90% (non-condensing)
  • Noise Level: Fanless (silent operation)
  • MTBF at 25°C: 2,026,793 hours
  • Power Input: 100–240V AC, 50/60 Hz, internal universal power supply

Dimensions & Weight

  • Dimensions (W × D × H): 445 × 240 × 44 mm
  • Weight: 2.63 kg

Certifications

  • UL 60950, CSA 22.2, CE Mark, FCC Part 15 (Class A)