Switch|DAHUA|DH-SG4020|SG4020

Ports and performance

• 18 x Gigabit Ethernet RJ45 ports (10/100/1000 Mbps) with auto-negotiation and full-duplex.

• 2 x Gigabit SFP ports (1000 Mbps) for fibre or DAC connections.

• Switching capacity: 56 Gbps non-blocking; forwarding rate 29.76 Mpps.

• Packet buffer: 4.1 Mbit; MAC table 8K entries; jumbo frames up to 10 KB.

Managed L2 functions

• VLAN: up to 4K VLANs (port-based, tagged, VLAN interface up to 10).

• Link aggregation: Dynamic LACP + static aggregation.

• STP/RSTP: loop prevention with fast reconvergence.

• QoS: 8 priority queues, 802.1p/DSCP, rate limiting.

• Multicast: IGMP Snooping v1/v2/v3; 802.1X security.

• Management: Web interface (HTTP/HTTPS), RJ45 console port, SNMP v1/v2c/v3.

Design and power supply

• 1U rack form factor (440 x 164 x 44 mm); weight 1.57 kg ( 2.25 kg packed).

• Active fan for heat dissipation; power consumption idle ≤6 W, max. 24 W.

• Power supply: 12 VDC / 2 A included; operating temperature -10 °C to +55 °C.

• Protection: ESD 8 kV (air), surge 2 kV, MTBF >467,000 hours.