Description

Product Description

The Dahua DH‑C4218‑16ET‑135 is a high‑performance Layer 2 smart PoE network switch designed for modern IP networking and surveillance systems. It provides 16 × Fast Ethernet PoE ports, capable of powering cameras and other PoE devices, plus 2 × combo Gigabit uplink ports (RJ45 or SFP) for flexible backbone connectivity.

This switch supports multiple PoE standards — IEEE 802.3af / 802.3at (PoE+), Hi‑PoE, and IEEE 802.3bt (up to 90 W) on select ports — delivering reliable power to a variety of devices. Intelligent PoE management ensures efficient power allocation, overload protection, and can extend transmission distance up to 250 m in extend mode.

Smart features include VLAN partitioning, PoE power control, loop protection, DHCP client, and PoE Watchdog for automatic device recovery. Management can be performed locally through a web GUI or remotely via the Dahua DoLynk Care cloud platform, giving you both simplicity and control.

The rugged metal housing supports desktop or rack mounting, and built‑in protection against static discharge and lightning ensures reliable operation in challenging environments.

Specifications (Verified & Accurate)

📡 Ports & Interface

• PoE Ports: 16 × 10/100 Mbps RJ45 (PoE)
• Uplink Ports: 2 × Combo 10/100/1000 Mbps RJ45 / 1000 Mbps SFP
• Total Ports: 18 Ports

⚡ PoE Features

• Supported Standards: IEEE 802.3af / IEEE 802.3at / Hi‑PoE / IEEE 802.3bt
• Max PoE on Ports 1‑2: Up to 90 W (802.3bt/Hi‑PoE)
• Max PoE on Ports 3‑16: Up to 30 W (PoE+)
• Total PoE Budget: 135 W
• PoE Pin Assignment: 1,2,4,5 (V+) & 3,6,7,8 (V‑)
• Long Distance PoE Support: Up to 250 m @ 10 Mbps

🚀 Performance

• Layer: Layer 2 Smart Managed
• Switching Capacity: 7.2 Gbps
• Packet Forwarding Rate: 5.36 Mpps
• MAC Address Table: 8K entries
• Packet Buffer: 4 Mbit
• VLAN Support: Up to 32 VLANs
• Jumbo Frame Support: up to ~15 KB

🧠 Management & Features

• Management: Web UI / App (DoLynk Care) Cloud Management
• PoE Watchdog: Auto restart PoE ports on inactivity
• VLAN: Port‑based & IEEE 802.1Q
• Flow Control: IEEE 802.3x
• DHCP Client Support
• Loop Protection & Broadcast Control
• MAC + Port Binding

🛡️ Protection & Reliability

• ESD Protection: 8 kV air / 6 kV contact
• Lightning Protection: 4 kV common / 2 kV differential
• Operating Temp: –10 °C to +55 °C
• Humidity: 5 %–95 % (non‑condensing)

⚙️ General

• Casing: Metal (desktop / rack‑mount)
• Power Supply: Built‑in 100–240 V AC
• Power Consumption: ≤ 154 W (full load)
• Dimensions: 440 × 220 × 44 mm
• Net Weight: ~2.23 kg

Key Features

✔ 16 × PoE ports with intelligent power management
✔ 2 × Gigabit uplink combo ports (RJ45/SFP)
✔ Total PoE budget of 135 W with Hi‑PoE support on select ports
✔ Smart management via Web UI and cloud (DoLynk Care)
✔ VLAN, loop protection, PoE watchdog, DHCP client
✔ Long‑distance PoE up to 250 m
✔ Metal housing with ESD and lightning protection

Typical Use Cases

✔ Medium‑scale IP CCTV networks
✔ Powering IP cameras (including high‑power devices)
✔ Wireless access point and VoIP phone infrastructure
✔ Office and retail network expansion
✔ Remote cloud‑managed network monitoring