Dahua DH-S4220-16GT-240 - 20 Port Layer 2 Managed Desktop Gigabit Ethernet Network Switch with 16 Port PoE

Dahua DH-S4220-16GT-240 - 20 Port Managed Desktop Gigabit Network Switch with 16 Port PoE

The Dahua DH-S4220-16GT-240 is a Layer 2 managed desktop PoE switch with 16 Gigabit PoE ports, 2 further Gigabit RJ-45 ports and 2 SFP ports. It supports IEEE 802.3af, 802.3at and, on ports 1 and 2, 802.3bt compatible with Hi-PoE, within a 240 W total PoE budget. Web and SNMP management, VLANs, STP/RSTP and link aggregation are listed by Dahua. As a Layer 2 switch and Ethernet switch it powers and networks PoE devices through its Gigabit RJ-45 ports.

Also listed as S4220-16GT-240.

Key features

• 16 x 10/100/1000 Mbps RJ-45 PoE ports, plus 2 x RJ-45 10/100/1000 Mbps and 2 x SFP 1000 Mbps ports
• PoE standards IEEE 802.3af, 802.3at, Hi-PoE and 802.3bt (PoE++), with ports 1 and 2 up to 90 W and ports 3 to 16 up to 30 W each, 240 W in total
• PoE power consumption management, PoE power off management and PoE watchdog
• Supports a 250 m long-distance PoE transmission mode
• Managed by web (http and https) and SNMP v1/v2c/v3, with VLAN, STP/RSTP, static link aggregation and LACP, IGMP snooping, IEEE 802.1x, ACL and DHCP snooping
• Full metal design with low power consumption and lightning-proof circuits, working from -10 °C to +55 °C

Technical specification

Works with

Dahua lists these Gigabit SFP modules for the SFP ports. We list:

• GSFP-1310T-20-SMF Gigabit SFP module, single-mode, listed by Dahua for this switch
• GSFP-1310R-20-SMF Gigabit SFP module, single-mode, listed by Dahua for this switch
• GSFP-850-MMF Gigabit SFP module, multi-mode, listed by Dahua for this switch

Common questions

How many PoE ports does it have, and how much power?

It has 16 PoE ports. Ports 1 and 2 give up to 90 W each, ports 3 to 16 up to 30 W each, with a 240 W total budget.

Which PoE standards does it support?

IEEE 802.3af and 802.3at on the PoE ports. Ports 1 and 2 also support IEEE 802.3bt and are compatible with Hi-PoE.

Is it a managed switch?

Yes. Dahua describes it as a Layer 2 network management PoE switch with web and SNMP v1/v2c/v3 management, VLAN, STP/RSTP, LACP, IGMP snooping, IEEE 802.1x and ACL.

Can it use fibre?

Yes, through its 2 SFP 1000 Mbps ports. Dahua lists GSFP modules for them, including the GSFP-1310T-20-SMF, GSFP-1310R-20-SMF and GSFP-850-MMF.

How far can PoE reach?

Dahua says it supports a 250 m long-distance transmission mode. In its lab table, which it marks as for reference only, a 100 m cable carries 71.3 W at 1000 Mbps from a 90 W port, and a 250 m cable carries 40 W at 10 Mbps.

Is there a larger version?

Yes, the DH-S4228-24GT-360 has 24 PoE ports and a 360 W budget.

Full manufacturer specification: Dahua product page

Browse the full Dahua range, all network switches or contact us on 01902 902251, or see our Wolverhampton trade counter.

Supplied by Zenith Security Co, Wolverhampton. We deliver to England, Scotland and Wales, or you can collect from our Wolverhampton trade counter (please call first).