Product SKU: DH-PFS4218-16ET-190-V3
Product Overview
The Dahua DH-PFS4218-16ET-190-V3 is an 18-port managed PoE switch designed for small to medium CCTV networks that need centralised camera power, flexible uplinks and Layer 2 management. Its por:contentReference[oaicite:0]{index=0}compatible cameras and devices, plus two Gigabit combo uplink positions with RJ45 and SFP options for connection to an NVR, core switch or fibre network. A shared 190W PoE budget supports IEEE 802.3af, IEEE 802.3at, Hi-PoE and IEEE 802.3bt equipment, with ports 1 and 2 rated for loads up to 90W each. Intelligent PoE management, timed Green PoE and PoE watchdog functions help maintain connected devices and simplify remote servicing. The switch also supports VLANs, STP/RSTP, LACP, port mirroring, QoS and multiple management methods. Long-distance PoE can extend supported links to 250 metres, with bandwidth reduced to 10Mbps beyond the normal range.
Key Capabilities
16 PoE Device Ports
Sixteen 10/100Mbps RJ45 ports provide network connectivity and PoE power for compatible IP cameras and other supported devices. This allows multiple surveillance connections to terminate at one centrally managed switch.
Gigabit Copper or Fibre Uplinks
Two combo uplink positions provide 10/100/1000Mbps RJ45 and 1000Mbps SFP interface options. These uplinks can connect the camera network to an NVR, another managed switch or suitable fibre infrastructure.
190W Intelligent PoE Budget
Intelligent PoE monitors connected-device consumption and manages overload conditions by shutting down higher-numbered ports progressively instead of interrupting every powered device at once.
Up to 90W on Ports 1 and 2
Ports 1 and 2 support IEEE 802.3bt and Hi-PoE loads of up to 90W per port. This suits compatible higher-powered devices while ports 3–16 support loads of up to 30W each.
250-Metre Extended PoE
Long-distance mode supports compatible PoE links of up to 250 metres using suitable cabling. Transmission speed is reduced to a maximum of 10Mbps beyond the normal 100-metre Ethernet distance.
Managed Layer 2 Networking
Web, CLI, iLinksView and SNMP-based management support VLANs, spanning tree, link aggregation, port mirroring, QoS and port security for more structured CCTV network administration.
Best For
- Small to Medium CCTV Networks: Connects and powers up to 16 compatible IP cameras from one managed switch.
- Schools, Hotels and Retail Sites: Suitable for distributed surveillance cameras across classrooms, corridors, common areas, entrances and sales floors.
- Long Cable Runs: Extended PoE mode supports selected camera links beyond the normal 100-metre Ethernet distance.
- Mixed-Power Camera Systems: Ports 1 and 2 can support compatible higher-powered devices while standard PoE cameras use the remaining ports.
- Managed Equipment Racks: Gigabit copper or fibre uplinks, VLANs and monitoring functions suit structured CCTV cabinets and communications rooms.
Why Choose the DH-PFS4218-16ET-190-V3
The DH-PFS4218-16ET-190-V3 offers more control than an unmanaged desktop switch while retaining a practical 16-port PoE layout for CCTV systems. Its strongest advantages are the shared 190W power budget, two 90W-capable ports, Gigabit copper or fibre uplink options and Layer 2 management tools that help separate, prioritise and troubleshoot network traffic. PoE watchdog can automatically restart communication on an affected port, while intelligent overload management avoids shutting down every powered device at once. The 250-metre transmission mode is also useful for selected cameras beyond normal Ethernet distance, provided the reduced 10Mbps speed is acceptable. Offered through Security Wholesalers, this model suits professionally planned systems where camera bandwidth, power draw, uplink type and cable length have been checked before installation.
Buyer Decision Tips
Port Speed Tip: The 16 PoE access ports operate at up to 100Mbps rather than Gigabit speed. The two combo uplink positions support Gigabit connections, so confirm that each camera’s bit rate and the combined uplink traffic fit the intended network design.
Hardware Revision Tip: The supplied Dahua PDF is labelled for the DH-PFS4218-16ET-190 and states that its parameters apply to V2.0. Confirm the specifications against the exact V3 unit label or a V3-specific datasheet before publishing or deploying revision-dependent details.
Key Features & Technical Specifications
| Model |
DH-PFS4218-16ET-190-V3 |
| Product Type |
18-port managed Layer 2 PoE switch |
| PoE Access Ports |
16 × RJ45 10/100Mbps PoE ports |
| Combo Uplinks |
2 × 10/100/1000Mbps RJ45 uplinks and 2 × 1000Mbps SFP uplinks in combo positions |
| Switching Performance |
8.8Gbps switching capacity with a 5.36Mpps packet forwarding rate |
| Buffer and MAC Table |
2.75Mbit packet buffer and 4K MAC address table |
| PoE Standards |
IEEE 802.3af, IEEE 802.3at, Hi-PoE and IEEE 802.3bt |
| PoE Budget |
Up to 190W total across all PoE ports |
| Per-Port PoE Capacity |
Ports 1–2: up to 90W each; ports 3–16: up to 30W each |
| PoE Management |
Power-consumption management, scheduled power control, overload shutdown, Green PoE and legacy support |
| PoE Watchdog |
Automatically detects selected network-port communication failures and restarts communication |
| Long-Distance Transmission |
Up to 250m with maximum bandwidth reduced to 10Mbps beyond the normal range |
| VLAN and Spanning Tree |
IEEE 802.1Q VLAN, IEEE 802.1D STP and IEEE 802.1W RSTP |
| Link and Port Management |
Static and LACP aggregation, one-to-one or multiple-to-one port mirroring and flow control |
| Security and QoS |
Port-based IP/MAC binding, MAC filtering, IEEE 802.1X authentication, WRR, 802.1P, DSCP and protocol-based priority |
| Management Methods |
CLI, iLinksView, web interface and SNMP-based network management software |
| Power |
100–240V AC; 10W idle consumption and 190W at full load |
| Electrical Protection |
4kV common-mode and 2kV differential-mode surge protection; 8kV air and 6kV contact ESD protection |
| Operating Conditions |
−10°C to +55°C at 10%–90% relative humidity |
| Dimensions and Installation |
440 × 300 × 44mm metal chassis with rack installation illustrated in the supplied documentation |
Ideal Use Cases
Office CCTV Networks
Connect entrance, reception, corridor and perimeter cameras to a centrally managed PoE switch.
Schools and Campuses
Use VLANs and managed uplinks to organise cameras across classrooms, walkways and common areas.
Hotels and Apartment Buildings
Power compatible cameras around entrances, lifts, car parks, corridors and shared facilities.
Retail and Supermarkets
Supports distributed camera coverage around shop floors, loading areas, registers and customer entrances.
Extended Camera Runs
Use long-distance PoE for selected cameras where the reduced 10Mbps link speed meets the stream requirement.
Rack-Based CCTV Systems
Place the switch with an NVR, patch panels and fibre or copper uplinks in a suitable equipment cabinet.
Choosing the Right Model
- Choose this switch if: You need 16 PoE camera connections, managed Layer 2 functions, two Gigabit combo uplinks and a shared 190W power budget.
- Choose a Gigabit access switch if: Individual camera or device ports require more than 100Mbps network speed.
- Choose a higher-budget model if: The combined power requirement of all connected devices exceeds 190W.
- Choose a different port count if: The project needs more than 16 powered device connections or requires additional capacity for future expansion.
FAQs
- How many PoE devices can the Dahua DH-PFS4218-16ET-190-V3 connect?
The switch provides 16 RJ45 PoE ports for compatible powered devices such as IP cameras. Ports 1–16 operate at 10/100Mbps, while the two remaining port positions are Gigabit uplink combinations rather than additional PoE camera ports. The number of devices that can run simultaneously also depends on their individual power requirements and the switch’s shared 190W PoE budget.
- Are all 18 ports on the DH-PFS4218-16ET-190-V3 PoE ports?
No. The 18-port layout consists of 16 × 10/100Mbps RJ45 PoE ports and two Gigabit combo uplink positions. Each uplink position provides a 10/100/1000Mbps RJ45 interface and a 1000Mbps SFP interface option. This arrangement gives the switch 16 powered device connections plus flexible copper or fibre uplinks for connecting an NVR, core switch or wider network.
- Which ports support high-power 90W PoE?
Ports 1 and 2 support up to 90W per port through IEEE 802.3bt or Hi-PoE. Ports 3–16 support up to 30W per port, and the total PoE budget across the switch is limited to 190W. A 90W device therefore uses a substantial portion of the available budget, so all connected camera, extender and accessory power requirements should be added together before installation.
- How does the 250-metre long-distance PoE mode work?
The switch supports PoE transmission over distances of up to 250 metres when suitable CAT5e or CAT6 cabling and compatible devices are used. In extended-distance operation, the port bandwidth is reduced to a maximum of 10Mbps beyond the normal 100-metre range. Actual distance and available power vary with cable resistance, cable condition and the power demand of the connected device.
- What does the PoE watchdog function do?
PoE watchdog monitors supported network ports for communication failure and can restart communication on an affected port automatically. This may restore a connected camera without requiring a technician to manually disconnect power or reboot the entire switch. It is useful for remote or difficult-to-access installations, although persistent faults still require investigation of the camera, cable, connectors, configuration and available PoE power.
- Which network management features are supported?
The managed Layer 2 platform supports web, CLI, iLinksView and SNMP-based management. Listed network functions include IEEE 802.1Q VLANs, STP and RSTP, static and LACP link aggregation, port mirroring, flow control, DHCP client operation, multicast snooping and QoS controls. Security options include port-based IP and MAC binding, MAC filtering and IEEE 802.1X port authentication.
- Is the DH-PFS4218-16ET-190-V3 suitable for rack installation?
The switch measures 440 × 300 × 44mm, and the supplied Dahua document illustrates installation in a standard equipment rack. Its metal enclosure and front-facing port layout suit communications cabinets and CCTV equipment rooms where an NVR, uplink and multiple camera cables terminate together. Allow ventilation around the chassis and confirm the rack, mounting hardware and mains power arrangement before installation.
- Does the supplied datasheet confirm every specification for the V3 revision?
No. The supplied Dahua PDF is labelled DH-PFS4218-16ET-190 and explicitly states that its parameters apply to V2.0. The V3 product name is supplied separately, so revision-specific specifications should be confirmed against the exact unit label or a V3 datasheet before publication or deployment. Security Wholesalers can verify the intended revision, port requirements and PoE loading before the switch is selected.
Additional Information
Dahua DH-PFS4218-16ET-190 Datasheet
