Description

Product Description

The Dahua DH-S3218-16ET-135 is a high-performance unmanaged PoE switch designed primarily for IP surveillance systems and small-to-medium network infrastructures. It provides 16 × 10/100 Mbps PoE ports, enabling both power and data delivery to IP cameras, wireless access points, and other PoE-enabled devices.

The switch includes 2 × Gigabit combo uplink ports (RJ45/SFP), allowing flexible connection to backbone networks or NVR systems. These combo ports support either copper (RJ45) or fiber (SFP), depending on deployment needs.

Supporting IEEE 802.3af/at/bt and Hi-PoE standards, the switch delivers up to 90 W on ports 1–2 (for high-power devices) and 30 W on ports 3–16, with a total PoE budget of 135 W.

Advanced surveillance-focused features include PoE Watchdog, which automatically reboots unresponsive IP cameras, and VIP port prioritization (ports 1–8) to ensure critical video streams remain stable. The switch also supports long-distance PoE transmission up to 250 m, making it ideal for extended CCTV installations.

With a plug-and-play unmanaged design, it requires no configuration, making deployment simple and reliable for installers.

Specifications (Verified & Accurate)

📡 Ports & Interface

• PoE Ports: 16 × 10/100 Mbps RJ45
• Uplink Ports: 2 × 10/100/1000 Mbps RJ45 (Combo)
• SFP Ports: 2 × 1000 Mbps SFP (Combo)
• Total Ports: 18 Ports
• MAC Address Table: 8K entries

⚡ PoE Features

• PoE Standards: IEEE 802.3af / 802.3at / 802.3bt / Hi-PoE
• Max PoE Output:
  • Ports 1–2: ≤ 90 W
  • Ports 3–16: ≤ 30 W
• Total PoE Budget: ≤ 135 W

🚀 Performance

• Switch Type: Unmanaged Layer 2
• Switching Capacity: 7.2 Gbps
• Forwarding Rate: 5.36 Mpps
• Packet Buffer: ~4 Mbit
• Jumbo Frame: 15 KB

🧠 Features

• PoE Watchdog (auto-restart of failed cameras)
• Long Distance PoE (up to 250 m, reduced bandwidth mode)
• VIP Ports (1–8 priority traffic)
• Port Isolation (broadcast storm protection)
• Plug & Play (no configuration required)

🛡️ Protection & Reliability

• Lightning / Surge Protection: Up to 4 kV
• ESD Protection: Air 8 kV / Contact 6 kV
• Operating Temperature: –10 °C to +55 °C
• Operating Humidity: 5%–95% (non-condensing)
• Power Supply: 100–240 VAC
• Installation: Desktop / Rackmount
• Dimensions: ~440 × 220 × 44 mm
• Weight: ~2.2–2.3 kg

Key Features

✔ 16 × Fast Ethernet PoE ports with 135 W total budget
✔ 2 × Gigabit combo uplink ports (RJ45/SFP)
✔ Supports IEEE 802.3af/at/bt and Hi-PoE
✔ Up to 90 W high-power PoE on ports 1–2
✔ PoE Watchdog for automatic camera recovery
✔ Long-distance PoE up to 250 m
✔ VIP ports for priority video transmission
✔ Unmanaged plug-and-play operation

Typical Use Cases

✔ Medium-scale IP CCTV surveillance systems
✔ Office networks with PoE devices
✔ Long-distance camera deployments (up to 250 m)
✔ SMB networking with simple plug-and-play setup
✔ Warehouses, schools, retail shops, and factories