Description

Product Description

The Dahua DH‑CS4220‑16GT‑190 is a professional smart managed PoE switch designed for enterprise‑class and mid‑range network deployments. It features 16 × Gigabit RJ45 PoE ports to power IP cameras, wireless access points, VoIP phones, and other PoE devices, along with 2 × Gigabit RJ45 uplinks and 2 × Gigabit SFP fiber uplinks for flexible backbone connectivity.

Supporting multiple PoE standards — IEEE 802.3af, IEEE 802.3at (PoE+), IEEE 802.3bt, and Hi‑PoE — the switch intelligently manages power distribution and supports long‑distance PoE transmission (up to 250 m at reduced data rates) for flexible camera placement without external injectors.

The switch supports cloud and local management via the DoLynk Care platform and web UI, enabling remote monitoring, configuration, VLAN segmentation, STP/RSTP redundancy, link aggregation, and more advanced L2 networking features. Its robust metal chassis and wide operating temperature range make it suitable for both office and industrial environments.

Specifications (Verified & Accurate)

📡 Ports & Interface

• PoE Ports: 16 × RJ45 10/100/1000 Mbps (Gigabit PoE)
• Uplink Ports: 2 × RJ45 10/100/1000 Mbps (Gigabit)
• Fiber Uplink Ports: 2 × 1000 Mbps SFP
• Total Ports: 20 Ports

⚡ PoE Features

• PoE Standards: IEEE 802.3af / IEEE 802.3at / IEEE 802.3bt / Hi‑PoE
• Port Power Output: Ports 1–2 up to 90 W; Ports 3–16 up to 30 W
• Total PoE Budget: 190 W
• Long‑Distance PoE Support: Up to 250 m @ 10 Mbps
• PoE Management: Power on/off control, intelligent PoE protection

🚀 Performance

• Switch Type: Layer 2 Smart Managed
• Switching Capacity: 40 Gbps
• Forwarding Rate: 29.76 Mpps
• Packet Buffer Memory: 4 M bit
• MAC Address Table: 8 K entries
• Jumbo Frame Support: Up to ~15 KB

🧠 Management & Features

• Management Interfaces: Web UI (local) & Cloud via DoLynk Care
• VLAN: IEEE 802.1Q VLAN (up to 32 VLANs)
• Redundancy: STP / RSTP
• Link Aggregation: Static aggregation
• Flow Control: IEEE 802.3x
• Other Functions: DHCP client, broadcast/multicast storm control, MAC + port binding, loop protection

🛡️ Protection

• ESD Protection: Air 8 kV / Contact 6 kV
• Lightning Protection: Common mode 4 kV / Differential mode 2 kV
• Operating Temperature: –10 °C to +55 °C
• Operating Humidity: 5 %–95 % (non‑condensing)

⚙️ General

• Housing: Metal chassis (desktop or rack‑mount)
• Power Supply: 100–240 V AC, 47–63 Hz, built‑in
• Power Consumption: ~212 W (full load)
• Dimensions: 440 × 220 × 44 mm
• Weight: ~2.3 kg

Key Features

✔ 16 × Gigabit PoE ports with intelligent power distribution
✔ 2 × Gigabit RJ45 + 2 × 1 Gbps SFP uplinks for flexible connection
✔ 190 W total PoE budget with multi‑standard support (PoE / PoE+ / IEEE 802.3bt / Hi‑PoE)
✔ Cloud management via DoLynk Care and local web UI
✔ VLAN, STP/RSTP, link aggregation, and smart Layer 2 features
✔ Long‑distance PoE support up to 250 m
✔ Robust metal housing for desktop or rack deployment

Typical Use Cases

✔ Medium‑scale IP CCTV surveillance systems
✔ Wireless access point and VoIP phone infrastructures
✔ Managed office LAN with PoE‑powered devices
✔ Remote cloud‑managed PoE networks
✔ Campus and enterprise edge PoE network expansion