The Dahua PFS4218-16ET-190 is an 18-port layer 2 managed switch designed for larger networks that need both centralized control and substantial PoE power output. With sixteen 100 Mbps PoE ports and two Gigabit uplink combo ports, it is built to support demanding surveillance systems and business networks that require more than basic unmanaged switching.
As a managed switch, the Dahua PFS4218-16ET-190 offers powerful network management functions. It supports configuration and monitoring through CLI, iLinksView, web-based interfaces, and SNMP-based network management software, giving administrators flexible options for controlling and maintaining the network.
Power delivery is a major strength of this switch, with a total PoE budget of 190W. The red port supports Hi-PoE at up to 90W, making it suitable for high-power devices, while the remaining ports deliver standard IEEE802.3af and IEEE802.3at power for typical PoE cameras and access points across the network.
Intelligent PoE functionality is built into the Dahua PFS4218-16ET-190, offering control and monitoring to prevent malfunctions caused by fluctuations in power consumption. This helps maintain stable operation even as multiple high-demand devices draw power simultaneously across the network.
Long Distance PoE transmission extends the usable range up to 250 meters, well beyond standard Ethernet limitations, making the switch well suited for larger facilities where devices are positioned far from the switch. A built-in PoE watchdog further improves reliability by automatically detecting and restarting unresponsive ports.
With an all-metal design, the Dahua PFS4218-16ET-190 offers strong heat dissipation and low power consumption, allowing it to operate reliably in environments ranging from -10°C to +55°C. Its combo uplink ports support both RJ-45 and SFP fiber connections, adding flexibility for different network topologies.
Combining a high 190W PoE budget, comprehensive management capabilities, intelligent power monitoring, and rugged build quality, the Dahua PFS4218-16ET-190 is a strong choice for larger, power-intensive networks that need centralized visibility alongside reliable PoE delivery.
PFS4218-16ET-190 – Performance
| Parameter | Detail / Value |
| Layer | Layer 2 |
| Managed | Yes |
| Switching Capacity | 8.8 Gbps |
| Packet Forwarding Rate | 5.36 Mpps |
| Packet Buffer Memory | 2.75 Mbit |
| MAC Table Size | 4K |
| Communication Standard | IEEE802.3; IEEE802.3u; IEEE802.3x; IEEE 802.3ab; IEEE 802.3z |
PFS4218-16ET-190 – Hardware Feature
| Parameter | Detail / Value |
| Standard Power Supply | Yes |
| PoE | Yes |
| Ethernet Port | 16 |
| Optical Port | 2 |
| 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)
|
| Debugging | 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
|
PFS4218-16ET-190 – PoE
| Parameter | Detail / Value |
| 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 |
PFS4218-16ET-190 – Function
| Parameter | Detail / Value |
| Spanning Tree Protocol | IEEE 802.1d (STP); 802.1w (RSTP) |
| VLAN | IEEE802.1q Standard VLAN |
| Flow Control | Support IEEE 802.3x (full duplex flow control) and back pressure flow control (half duplex) |
| Link Aggregation | Static; LACP |
| Port Mirroring | One-to-one; multiple-to-one |
| Multicast | IGMP snooping based on port |
| DHCP | DHCP client |
| Security | Hardware supports IP and MAC binding based on port, MAC filtering based on port, and IEEE802.1x port authentication |
| QoS |
High and low priority
WRR
802.1P
DSCP
Priority based on protocol
|
PFS4218-16ET-190 – General
| Parameter | Detail / Value |
| ESD |
Air discharge: 8kV
Contact discharge: 6kV
|
| Thunder-proof |
Common mode: 4kV
Differential mode: 2kV
|
| Dimensions | 440 mm × 300 mm × 44 mm (17.32″ × 11.81″ × 1.73″) (L × W × H) |
| Packaging Dimensions |
Packing box: 528 mm × 412 mm × 112 mm (20.79″ × 16.22″ × 4.41″) (L × W × H)
Protective box: 584 mm × 549 mm × 446 mm (22.99″ × 21.61″ × 17.56″) (L × W × H)
|
PFS4218-16ET-190 – Transmission Performance
| Standard / Mode | Cable (m) | Load Capacity (W) | Bandwidth (Mbps) |
| IEEE802.3bt 90 W | 100 | 71.3 | 100 |
| 150 | 62 | 10 | |
| 200 | 51 | 10 | |
| 250 | 40 | 10 | |
| Hi-PoE 60 W | 100 | 53 | 100 |
| 150 | 50 | 10 | |
| 200 | 47 | 10 | |
| 250 | 37 | 10 | |
| IEEE802.3at 30 W | 100 | 25.5 | 100 |
| 150 | 25.5 | 10 | |
| 200 | 25.5 | 10 | |
| 250 | 25.5 | 10 |
Note: Data from this table was collected by Dahua test lab and is for reference only. The actual transmission distance may vary due to power consumption of connected devices or the cable type and status.
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