Description
Dahua DH-CS4218-16ET-135 18-Port Switch with 16-Port PoE
The Dahua DH-CS4218-16ET-135 is an 18-port cloud-managed desktop switch designed for reliable networking and PoE-powered security installations. It features 16 × 10/100 Mbps PoE ports and 2 Gigabit combo uplink ports with RJ-45/SFP connectivity. Supporting IEEE 802.3af/at, Hi-PoE, and 802.3bt standards, it provides a 135W total PoE budget, with up to 90W on ports 1–2. The switch also supports 250-meter long-distance PoE, PoE Watchdog, VLAN, loop protection, and DoLynk Care cloud management, making it suitable for CCTV cameras, offices, homes, and small-to-medium business networks.
18-Port Cloud Managed PoE Switch
Equipped with 16 × 10/100 Mbps PoE RJ45 ports and 2 × Gigabit uplink combo ports (RJ45/SFP) for flexible network connectivity.
135W Total PoE Power Budget
Supports IEEE 802.3af/at/bt and Hi-PoE standards, delivering up to 90W on ports 1–2 and 30W on ports 3–16 to power IP cameras, wireless access points, and other PoE devices.
Long-Distance PoE Transmission
Supports PoE transmission up to 250 meters in extended mode, making it suitable for large CCTV or surveillance installations.
High Switching Performance
Provides 7.2 Gbps switching capacity and 5.36 Mpps packet forwarding rate for stable and efficient data transmission.
Intelligent PoE Features
Includes PoE Watchdog and power management, automatically restarting unresponsive devices to maintain stable network operation.
Durable Industrial Design
Built with a full metal dust-proof enclosure and supports operating temperatures from -10°C to 55°C for reliable performance.
Specifications
| Brand | Dahua |
| Model | CS4218-16ET-135 |
| Hardware | |
| Included Power Adapter | Yes |
| PoE | Yes |
| Ethernet Port | 16 |
| Ethernet Port Speed | 10/100 Mbps |
| Optical Port Speed | 1000 Mbps |
| Ethernet Port Uplink Speed | 10/100/1000 Mbps |
| Optical Port Uplink Speed | 1 Gbps |
| Description of Function Slots | Port 1-16: 16 × RJ-45 10/100 Mbps (PoE) Port 17-18: 2 × RJ-45 10/100/1000 Mbps (combo) Port 17-18: 2 × SFP 1000 Mbps (combo) |
| Reset Button | 1 |
| Power Supply | Built-in power supply: 100-240 VDC, 47-63 Hz, max 3 A |
| Operating Temperature | –10 °C to +55 °C (+14 °F to +131 °F) |
| Operating Humidity | 5%–95% (RH), non-condensing |
| Storage Temperature | –40 °C to +70 °C (–40 °F to +158 °F) |
| Storage Humidity | 5%–95% (RH), non-condensing |
| Power Consumption | Idling: ≤6 W Full load: 154 W |
| Performance | |
| Layer | Layer 2 |
| Management Type | Yes |
| Smart Managed Switch | Yes |
| MTBF | 87.10 years |
| Switching Capacity | 7.2 Gbps |
| Packet Forwarding Rate | 5.36 Mpps |
| Packet Buffer Size | 4 Mbit |
| Jumbo Frame | 15K Byte |
| MAC Table Size | 8K |
| VLAN Number | 32 |
| Communication Standard | IEEE802.3 IEEE802.3u IEEE802.3x IEEE802.3ab IEEE802.3z |
| Feature | |
| PoE Protocol | IEEE802.3af IEEE802.3at Hi-PoE IEEE802.3bt |
| PoE Power | Port 1-2 ≤ 90 W, Port 3-16 ≤ 30 W, total ≤ 135 W |
| PoE Power Consumption Management | Yes |
| PoE Pin Assignment | 1,2,4,5(V+),3,6,7,8(V-) |
| Long Distance PoE Transmission | Yes |
| VLAN Function | Port-based VLAN |
| IEEE 802.3x Flow Control | Yes |
| DHCP Function | DHCP Client |
| Equipment Management | Web management App management |

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