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Dahua  |  SKU: DH-PFS4218-16ET-190-V3

Dahua Ethernet Switch: 18-Port, Managed, 16-Port PoE - DH-PFS4218-16ET-190-V3


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Dahua PFS4218-16ET-190 Ethernet Switch is a type of layer-two managed PoE switch. It provides 16 x 100 Mbps PoE ports and 2 x Gigabit Uplink Combo ports. The full load is 190W. With an all-metal design, the product has good heat dissipation and low power consumption, which can work in environments from –10°C to +55°C. It features powerful network management functions. The network management system supports CLI, iLinksView, web and network management software based on SNMP.


  • Ethernet Switch 18-Ports: 16 x 100 Mbps PoE Ethernet, 2 x Gigabit Uplink Combo.
  • Intelligent Power-Over-Ethernet offers control and monitoring to prevent malfunctions caused by changes in power consumption.
  • Hi-PoE 90W (Red Port): Suitable for powering high-power devices.
  • Features Web Management with an easy to use interface.
  • Adopts the innovative PoE Watchdog, enables intelligent operation and maintenance management in its truest sense, effectively reducing manual maintenance costs.
  • Supports long-distance Power-Over-Ethernet transmission up to 250 meters.
  • Operating Temperature: –10 °C to +55 ° (14 °F to 131 °F)
  • 3 Years Back-to-Base Manufacturer Warranty!


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More Info

Dahua PFS4218-16ET-190 Ethernet Switch

Uplink Combo Port: Two of the uplink ports support a self-adaptive 10/100/1000 Mbps RJ-45 port or a 1000 Mbps optical port.

Intelligent PoE: The switch features intelligent PoE power consumption management to help keep the power and data flowing, even when the switch experiences a power fault. Intelligent PoE monitors the power consumption of the connected devices, and in the event of large power fluctuations, the switch shuts down one port at a time rather than shutting down all ports. Unlike typical switches that shut down all ports at once, this switch shuts down the highest number port first, then the next highest number until the switch detects the power consumption is below the PoE budget. Green PoE can power on and power off according to time strategy. It can also realize PoE legacy support.

BT 90W: The red port supports the IEEE802.3bt and the Hi-PoE standards. The maximum power consumption is 90W.

PoE Watchdog: The switch employs an innovative PoE watchdog function that automatically detects a network port failure and restarts network communication on the port. This functionality avoids manual maintenance and network restarts, saving time and reducing costs.

Long Distance PoE: Long-distance PoE transmission extends the maximum transmission distance to 250 m (from 100 m), but reduces transmission speed to a maximum of 10 Mbps (from 1000 Mbps).

Various Operating Environments: The switch is designed to operate in severe environments and in temperatures ranging from –10°C to +55°C (14°F to 131°F). The switch includes a professional-grade surge protection circuit that offers 4 kV (common mode) and 2 kV (differential mode) all-port lightning protection. This protection reduces damage to the network from a lightning storm. The switch meets the Class B EMC standard and is suitable for residential, commercial, and light-industrial applications.


Tech Specs

Dahua PFS4218-16ET-190 Ethernet Switch



Layer 2



Switching Capacity

8.8 Gbps

Packet Forwarding Rate

5.36 Mpps

Packet Buffer Memory

2.75 Mbit

MAC Table Size


Communication Standard

IEEE802.3; IEEE802.3u; IEEE802.3x; IEEE 802.3ab;

IEEE 802.3z

Hardware Feature

Standard Power Supply




Ethernet Port


Optical Port


Ethernet Port Rate

100 Mbps

Optical Port Rate

1 Gbps

Number of Bussiness Card Slots

Port 1-16: 16 × RJ-45 10 M/100 M (PoE) Port 17-18: 2 × RJ-45 10 M/100 M/1000 M (uplink) Port 17-18: 2 × SFP 1000 M (uplink) (combo)


Console × 1

Power Supply

100V–240V AC

Operating Temperature

–10 °C to +55 ° (14 °F to 131 °F)

Operating Humidity

10% RH–90% RH

Power Consumption

Idling: 10W Full load: 190W


PoE Standard

IEEE802.3af/ IEEE802.3at/ Hi-PoE/IEEE802.3bt

PoE Budget

Port 1-2 ? 90W, Port 3-16? 30W, total ? 190W

PoE Pin Assignment

1, 2, 4, 5 (V+), 3, 6, 7, 8 (V-)

PoE Management

Power consumption management Power on and power off Power down for overload Green PoE Legacy support

Long Distance PoE Transmission

250 m long-distance power supply


Spanning Tree Protocol

IEEE 802.1d (STP); 802.1w (RSTP)


IEEE802.1q Standard VLAN

Flow Control

Support IEEE 802.3x (full-duplex flow control) and backpressure flow control (half-duplex)

Link Aggregation

Static; LACP

Port Mirroring

One-to-one; multiple-to-one


GMP snooping based on port


DHCP client


Hardware supports IP and MAC binding based on port, MAC filtering based on port, and IEEE802.1x port authentication


High and low priority WRR 802.1P DSCP Priority-based on protocol



Air discharge: 8kV Contact discharge: 6kV


Common mode: 4kV Differential mode: 2kV


440 mm × 300 mm × 44 mm (17.32" × 11.81" × 1.73") (L × W × H)

Packaging Dimensions

Packing box: 527 mm × 412 mm × 110 mm (20.75" × 16.22" × 4.33") (L × W × H) Protective box: 584 mm × 549 mm × 446 mm (22.99" × 21.61" × 17.56") (L × W × H)




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