Dahua DH-PFS4218-16ET-190 16-Port PoE Switch

The Dahua DH-PFS4218-16ET-190 is a specialized PoE (Power over Ethernet) switch designed specifically for the security industry. Unlike general switches, it includes PoE management functions that enable power control and real-time port consumption display. This switch is commonly used in surveillance projects due to its robust features. It supports 250 meters of long-distance PoE transmission and includes an 'orange port' for Hi-PoE powered devices, enhancing its utility for powering high-demand devices like IP cameras and other networked security equipment.

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 maintain power and data flow, even in power fault situations. It monitors the power consumption of connected devices, shutting down ports selectively during large power fluctuations—starting with the highest usage port until the consumption is below PoE budget. Additionally, it offers green PoE functionality to power on/off according to schedule and supports PoE legacy.

BT 90W: The red port supports IEEE802.3bt and Hi-PoE standards, with a maximum power consumption of 90W.

PoE Watchdog: This innovative feature automatically detects network port failures and restarts communication on the port, avoiding the need for manual maintenance and reducing downtime.

Long Distance PoE: It extends the maximum PoE transmission distance to 250 m, but this reduces the transmission speed to a maximum of 10 Mbps.

Various Operating Environments: Designed to operate in extreme conditions, the switch functions effectively in temperatures ranging from –10°C to +55°C (14°F to 131°F). It includes a professional-grade surge protection circuit, offering 4 kV (common mode) and 2 kV (differential mode) lightning protection, minimizing network damage during storms. The switch complies with Class B EMC standards, making it suitable for residential, commercial, and light-industrial applications.

Features:

• Specialized PoE management functions, including real-time port consumption.
• Long-distance PoE transmission capability of 250 meters.
• Uplink combo port compatible with 10/100/1000 Mbps RJ-45 or 1000 Mbps optical connections.
• Intelligent PoE management to prevent total shutdown during power fluctuations.
• Supporting maximum power consumption of 90W with BT 90W capability.
• PoE Watchdog function for automatic port restart on communication failure.
• Operates in temperatures from –10°C to +55°C (14°F to 131°F).
• Surge protection rated at 4 kV and 2 kV for lightning protection.
• Meets Class B EMC standards for reliable performance.

Functions:

Intelligent PoE Management: The switch features intelligent PoE management that monitors power consumption across connected devices. In case of power fluctuations, it sequentially disables ports, preventing a total system shutdown and allowing for continued operation of the remaining devices.

PoE Watchdog Function: The innovative PoE watchdog function automatically detects network port failures and re-establishes communication without manual intervention. This feature saves time and resources by minimizing the need for manual resets or maintenance visits.

Long-Distance PoE Transmission: This switch extends PoE transmission capabilities up to 250 meters, accommodating longer distances in surveillance installations. Although the transmission speed is reduced to a maximum of 10 Mbps, this feature enables more strategic placement of devices in large areas.

Robust Surge Protection: Equipped with 4 kV common mode and 2 kV differential mode surge protection, the switch is designed to safeguard against lightning strikes and voltage spikes. This added protection ensures the longevity of network equipment in severe weather conditions.

Dual Uplink Ports: The switch provides dual uplink ports that support self-adaptive 10/100/1000 Mbps RJ-45 connections or Gigabit optical connections. This versatility allows for high-speed data transmission to other network devices or switches, enhancing overall network performance.

Environmentally Adaptable Design: Designed to function in challenging environments, the switch operates within a temperature range of –10°C to +55°C. This ensures reliable performance for various applications, from residential settings to industrial installations.

Real-Time PoE Monitoring: Users can monitor real-time PoE power consumption via an intuitive management interface. This functionality helps in optimizing power usage and ensuring that each device receives adequate power for effective operation.

Easy Installation and Setup: The switch is designed for straightforward installation, requiring minimal configuration for quick deployment. Its user-friendly design allows both experienced and novice users to set it up efficiently without extensive networking knowledge.

Technical Specifications:

Model	Dahua DH-PFS4218-16ET-190
Port Configuration	16 x PoE Ports + 2 x Uplink Combo Ports (RJ-45 and Optical)
PoE Standard	IEEE 802.3af/at/bt
Power Consumption (Max)	90W for Hi-PoE red port
PoE Transmission Distance	Up to 250 meters (with reduced speed to 10 Mbps)
Operating Temperature	–10°C to +55°C (14°F to 131°F)
Surge Protection	4 kV (common mode), 2 kV (differential mode)
Dimensions	440 mm × 250 mm × 44 mm (17.32" × 9.84" × 1.73")
Weight	Approx. 2.5 kg (5.51 lb)
Certification	CE, FCC, RoHS