Description
Dahua DH-CS4218-16ET-135-PAK is an 18-port cloud-managed desktop switch built for surveillance and business networks that need a large number of PoE ports backed by substantial power delivery. Combining 16 dedicated PoE ports with flexible Gigabit uplink options, this switch is designed to serve as a reliable backbone for CCTV systems, IP phones, and access points across offices, warehouses, and commercial properties.
At the core of the Dahua DH-CS4218-16ET-135-PAK are 16 individual 10/100Mbps PoE ports, alongside 2 combo Gigabit ports that can function as either RJ45 uplink or SFP fiber uplink connections. This gives installers the flexibility to connect the switch back to a core network using either copper cabling for standard setups or fiber for longer-distance backbone connections. The switch delivers a substantial total PoE budget of 135W, with ports 1 and 2 supporting up to 90W each under 802.3bt Hi-PoE standards, while the remaining ports supply up to 30W each under standard 802.3af/at.
One of the standout features of the Dahua DH-CS4218-16ET-135-PAK is its long-distance PoE transmission, capable of reaching up to 250 meters at reduced speeds, well beyond the standard 100-meter Ethernet limit. This makes the switch particularly well suited for surveillance camera deployments spread across large properties, parking areas, or industrial sites where standard cable runs would otherwise fall short of reaching distant cameras or access points.
Reliability is reinforced through PoE Watchdog functionality, which continuously monitors connected PoE-powered devices and automatically restores power to any that become unresponsive, helping minimize downtime for critical equipment like security cameras without requiring manual intervention. A convenient front-facing DIP switch also allows installers to quickly toggle between Cloud-Managed mode, PoE Watchdog, and Long Distance PoE settings, simplifying configuration without needing to access a full management interface for basic adjustments.
Management flexibility is another strong point, with the Dahua DH-CS4218-16ET-135-PAK supporting both local network management and cloud-based oversight through the DoLynk Care platform. This allows administrators to monitor network topology, front-end devices, transmission equipment, and back-end storage systems from a single, centralized interface, whether managing the switch on-site or remotely across multiple locations.
Build quality is a defining strength of this switch, featuring a fully enclosed, dust-proof metal casing designed for excellent heat dissipation and a wide operating temperature range from -10°C to 55°C. Built-in protection against overvoltage, overcurrent, static electricity, and lightning strikes makes the switch well suited for demanding environments where power fluctuations and electrical interference are common concerns.
Additional network protections include loop protection and VLAN support, both of which help maintain stable network performance and prevent broadcast storms in more complex, multi-device installations. Whether mounted in a server rack or placed as a desktop unit, the switch’s rugged construction supports long-term, continuous operation.
For businesses and property managers deploying large-scale CCTV systems or expanding networks with numerous PoE-powered devices, the Dahua DH-CS4218-16ET-135-PAK offers a dependable, high-capacity solution. Its combination of substantial PoE power, long-distance transmission, cloud management, and rugged build quality makes it a practical choice for demanding surveillance and business network deployments.
Dahua DH-CS4218-16ET-135-PAK Hardware
| Specification | Details |
|---|---|
| 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 |
Dahua DH-CS4218-16ET-135-PAK Performance
| Specification | Details |
|---|---|
| Layer | Unmanaged |
| 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 |
| Communication Standard | IEEE802.3; IEEE802.3u; IEEE802.3x; IEEE802.3ab; IEEE802.3z |
Dahua DH-CS4218-16ET-135-PAK Feature
| Specification | Details |
|---|---|
| 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 |
| IEEE 802.3x Flow Control | Yes |
Dahua DH-CS4218-16ET-135-PAK General
| Specification | Details |
|---|---|
| Statics Protection | Air discharge: 8 kV; Contact discharge: 6 kV |
| Lighting Protection | Common mode: 4 kV; Differential mode: 2 kV |
| Net Weight | 2.23 kg (4.91 lb) |
| Gross Weight | 2.88 kg (6.34 lb) |
| Product Dimensions | 440 mm × 220 mm × 44 mm (17.32″ × 8.66″ × 1.73″) (L × W × H) |
| Packaging Dimensions | 540 mm × 342 mm × 90 mm (21.26″ × 13.46″ × 3.54″) (L × W × H) |
| Casing Material | Sheet metal |
| Installation | Desktop mount; rack mount |
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