Dahua 28-port Smart PoE Gigabit Managed Switch

Technical features

• Dahua CS4228 Smart Smart Managed Switch
• 24 RJ-45 10/100/1000 Mbps ports (PoE)
• 2 x RJ-45 10/100/1000 Mbps ports (uplink)
• 2 x 1000 Mbps SFP ports (uplink)
• 56 Gbps switching capacity
• 41.66 Mpps forwarding rate
• 8K-entry MAC table and 4 Mbit buffer
• Supports 15 K Byte Jumbo Frames
• IEEE802.3, 802.3u, 802.3x, 802.3ab and 802.3z compliant
• MTBF of 67.8 years

Features

• Cloud-based management via DoLynk Care App with real-time monitoring and alerts
• Network topology management with LLDP protocol
• PoE Watchdog for automatic port reboot on failure
• Loop protection with alarm and automatic broadcast storm elimination
• Spanning Tree STP/RSTP protocol for redundancy and network stability
• Intelligent PoE management (enable/disable per port)
• Per-port VLAN and IEEE 802.3x flow control support

PoE

• IEEE802.3af / at / bt and Hi-PoE protocols
• Ports 1-2 up to 90 W (BT), ports 3-24 up to 30 W (PoE+)
• 375 W total PoE budget
• Long distance PoE transmission up to 250 m (10 Mbps)
• PoE pin assignment: 1,2,4,5 (V+) / 3,6,7,8 (V-)

Communication interface

• 1 reset button
• WEB and App management (Dahua DoLynk Care)
• Integrated DHCP Client

Power supply

• Internal power supply 100-240 V AC, 47-63 Hz, max. 7 A
• Standby power consumption ≤ 12.5 W; at full load 400 W

Environmental

• Operating temperature -10 °C to +55 °C (-10 °C to +55 °C)
• Operating humidity 5 % to 95 % (non-condensing)
• Static discharge protection: 8 kV (air), 6 kV (contact)
• Lightning protection: common mode 4 kV, differential 2 kV

Physical characteristics

• Fully enclosed, dust-resistant metal housing
• Desktop or 19" rack installation
• Dimensions: 440 × 220 × 44 mm
• Net weight: 2.66 kg
• Gross weight: 3.26 kg

Contents

• 28-Port Smart Gigabit Smart Gigabit Managed PoE Switch DAHUA-4981 (DH-CS4228-24GT-375-V2)

Certifications

• CE, FCC, RoHS