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DAHUA-4251
DAHUA-4251
DAHUA-4251_B
DAHUA-4251_C

28-port L2 Managed Cloud Switch L2 with 24 PoE

DAHUA-4251

DH-CS4228-24GT-240

  • MAIN FEATURES
  • SPECIFICATIONS
  • DOCUMENTATION
  • COMMENTS
  • Dahua Layer2 manageable switch in the cloud
  • 24 Gigabit PoE ports
  • 2 RJ45 Uplink Gigabit ports
  • 2 SFP Uplink Gigabit ports
  • 8K MAC addresses
  • PoE consumption management
  • Supports intelligent PoE
  • Total PoE delivery of 240W
  • Cloud management via Dolynk platform
  • Network topology management
  • Long distance PoE
  • Spanning Tree Protocol (STP)
  • Watchdog PoE
  • Loop protection
  • Includes 220V power supply.
  • 24 PoE RJ45 10/100/1000Mbps PoE ports
  • 2 RJ45 Uplink 10/100/1000 Mbps RJ45 ports
  • 2 SFP Uplink 1000 Mbps ports
  • PoE consumption: ≤90W ports 1 to 2 (marked in red), ≤30W ports 3 to 24, ≤240W total.
  • PoE Standards:
    • IEEE802.3af (PoE).
    • IEEE802.3at (PoE+)
    • IEEE802.3bt (Hi-PoE)
  • Network standards:
    • IEEE802.3
    • IEEE802.3u
    • IEEE802.3x
    • IEEE802.3ab
    • IEEE802.3z
  • Powerful L2 functions
  • 56Gbps switching capacity
  • Packet transfer rate of 41.66Mpps
  • Packet buffer memory: 4Mbit
  • Jumbo frame: 15K Byte
  • MAC addresses: 8K
  • VLAN: 32
  • Port-based VLAN function
  • DHCP client
  • Cloud management via Dolynk platform
  • Web management and App management
  • PoE consumption management
  • PoE pin allocation 1,2,4,4,5（V+）,3,6,7,8（V-)
  • Long distance PoE transmission
  • Spanning Tree Protocol STP/RSTP
  • Reset button
  • Power supply: 100V ~ 240V AC, 47-63Hz, max. 4A
  • Power consumption: ≤12.5W (standby), 265W (maximum)
  • Storage temperature: -40°C ~ +70°C
  • Storage relative humidity 5%~95%.
  • Operating temperature: -10°C ~ +55°C
  • Operating relative humidity 5%~95%.
  • Metal housing
  • Lightning-proof 4kV
  • Desktop or rackmount installation
  • Dimensions: 440 (W) x 44 (H) x 220 mm
  • Gross weight: 3.15 kg
  • Net weight: 2.50 kg
  • Power supply included
REFERENCE / MODEL DAHUA-4251 / DH-CS4228-24GT-240
Special Protection No
Technology IP || POE
PoE 24 PoE || 24 PoE+ || Hi-PoE
CCTV Mode Yes
Fiber Ports 2 (Gigabit)
RJ45 Ports 26 (Gigabit)
Installation environment Indoor
Material Metal
Managed Cloud || DOLINK Cloud || L2
Ring RSTP || STP
PoE budget 201-250W
Installation Desktop || Rackable
Fan Yes
Switch Type Access
Power Input Power Supply Included

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Estimated Delivery: 1 To 5 Business Days (Depending On The Country)
Repair Services And Technical Support
No Worries: 15 Days Right Of Withdrawal
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