How are the 28 ports arranged on the Dahua DH-CS4228-24GT-375?

The DH-CS4228-24GT-375 provides 24 RJ45 10/100/1000Mbps PoE access ports, two RJ45 10/100/1000Mbps uplink ports and two 1Gbps SFP uplink ports. This gives installers four dedicated Gigabit uplinks for recorder, core-switch or fibre connections. The required network design, SFP type, fibre standard and uplink redundancy should be confirmed for the complete system.

How is the 375W PoE budget distributed?

The total PoE power budget is up to 375W across the 24 powered ports. Ports 1 and 2 can each supply up to 90W for compatible IEEE 802.3bt or Hi-PoE devices, while ports 3–24 support up to 30W each. The total connected demand must remain within 375W, with practical headroom allowed for device start-up and future additions.

Can the switch transmit PoE beyond the normal Ethernet distance?

Yes. Dahua lists long-distance PoE transmission up to 250 metres on supported ports, with bandwidth reduced to 10Mbps in this mode. Cable quality, conductor material, terminations, device power demand and environmental conditions affect performance. Standard Gigabit operation should be used where possible, while extended mode should be planned specifically for compatible low-bandwidth endpoints such as selected security cameras.

What can be managed through DoLynk Care?

The switch supports cloud management through the DoLynk Care app as well as local web management. Dahua lists real-time network monitoring, device-status viewing, fault alarms, notifications and topology visualisation using LLDP. Cloud functions require an available internet connection, account setup and supported regional services. Network-security settings, user access and firmware management should be included in the commissioning process.

What does the PoE Watchdog function do?

PoE Watchdog monitors supported powered-device connections and can restart a failed PoE port when an IP-camera connection exception is detected. This may restore a camera without an immediate site visit. It does not repair cabling faults, incompatible devices, exhausted PoE budgets or persistent network problems, so repeated restarts should be investigated rather than treated as a permanent solution.

Is the CS4228-24GT-375 a Layer 3 switch?

No. Dahua specifies this model as a Layer 2 smart-managed switch. It supports functions such as STP/RSTP, port-based VLANs, IEEE 802.3x flow control, a DHCP client, loop protection and web or app management. Advanced Layer 3 routing, inter-VLAN routing and enterprise core-routing functions are not listed, so another router or Layer 3 switch may be required.

Can the switch be installed in a standard equipment rack?

Yes. Dahua lists both desktop and rack-mount installation. The chassis measures 440 × 220 × 44mm, which is approximately one rack unit high, and weighs 2.66kg. Allow suitable front and rear clearance for ventilation, mains power, copper patch leads and SFP cabling. The operating environment must remain between –10 °C and +55 °C without condensation.

What should I confirm before ordering this PoE switch?

Calculate the combined PoE load, confirm whether any device needs the 90W ports, and check the required copper and fibre uplinks. Also verify rack space, mains capacity, cable distances, VLAN requirements and whether Layer 2 management is sufficient. Security Wholesalers can assist with matching the switch to compatible cameras, recorders, wireless access points and the overall network design.

Dahua DH-CS4228-24GT-375 28-Port Cloud-Managed Gigabit PoE Switch with 24 PoE Ports, 4 Uplinks & 375W Budget

$474.00

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The Dahua DH-CS4228-24GT-375 delivers a 28-port cloud-managed Gigabit PoE switch designed for IP CCTV, networking and commercial security installations requiring centralised power and data distribution. Featuring 24 PoE ports, 4 uplink ports and a 375W PoE budget, it supports compatible IP cameras, access points and network devices across larger structured deployments.

It also provides cloud-managed functionality, making this PoE switch available at Security Wholesalers practical for installers and businesses needing easier network oversight across security systems. Its high-port-count design suits offices, warehouses, retail sites, schools and multi-camera surveillance projects where stable connectivity, PoE capacity and scalable network infrastructure are important.

Key Features

28-Port Switch Design: Provides high-capacity network connectivity for larger CCTV and commercial networking installations.
24 PoE Ports: Supplies power and data to compatible PoE devices such as IP cameras and access points.
4 Uplink Ports: Supports connection to upstream network equipment, recorders and core infrastructure.
375W PoE Budget: Provides substantial PoE capacity for compatible multi-device deployments.
Cloud-Managed Operation: Supports easier oversight and management for compatible network environments.
Gigabit Performance: Delivers Gigabit connectivity for suitable surveillance, data and security network applications.

Additional Information

Dahua DH-CS4228-24GT-375 Datasheet

$474.00 inc GST +3 Year Warranty & Support

Description

Product SKU: DH-CS4228-24GT-375

Product Overview

The Dahua DH-CS4228-24GT-375 is a 28-port cloud-managed Layer 2 Gigabit switch designed for medium-sized CCTV and business networks requiring substantial PoE capacity and flexible uplinks. It provides 24 Gigabit PoE access ports, two Gigabit RJ45 uplinks and two 1Gbps SFP uplinks, with a total PoE budget of 375W. Ports 1 and 2 support up to 90W each for compatible IEEE 802.3bt or Hi-PoE devices, while ports 3–24 provide up to 30W each. DoLynk Care cloud management, local web control, PoE Watchdog, topology visualisation, STP/RSTP and port-based VLANs support practical operation and maintenance. The fully enclosed metal chassis can be installed on a desktop or in a rack.

Key Capabilities

24-Port Gigabit PoE Access

Twenty-four 10/100/1000Mbps RJ45 ports provide data and PoE for compatible cameras, wireless access points, intercoms and other powered network devices.

Four Dedicated Gigabit Uplinks

Two copper Gigabit RJ45 uplinks and two 1Gbps SFP uplinks support recorder, aggregation-switch, fibre-backbone and redundant network connections.

375W PoE Power Budget

Ports 1–2 provide up to 90W each, while ports 3–24 provide up to 30W each, subject to the shared maximum budget of 375W.

DoLynk Care Cloud Management

App-based cloud monitoring, alerts, notifications and network-topology visualisation support remote operation and maintenance alongside local web management.

Intelligent PoE and Watchdog

PoE consumption management, individual port power control and automatic restart of failed supported camera connections can reduce routine service visits.

250m Long-Distance PoE

Extended transmission mode can reach up to 250 metres for supported endpoints, with port bandwidth reduced to 10Mbps.

Best For

24-Camera PoE Networks: Provides Gigabit data and centrally managed PoE for up to 24 compatible powered endpoints.
High-Power PTZ Cameras: The first two ports support compatible devices requiring up to 90W each.
Fibre-Backbone Projects: Two SFP uplinks support compatible 1Gbps fibre connections alongside two copper Gigabit uplinks.
Remote Service Management: DoLynk Care monitoring, alerts, topology display and PoE Watchdog assist multi-site maintenance.
Commercial Rack Installations: The 440mm-wide metal chassis supports rack or desktop deployment in offices, retail sites, warehouses and hospitality venues.

Why Choose the DH-CS4228-24GT-375

The DH-CS4228-24GT-375 combines a practical 24-port Gigabit PoE access layer with four dedicated uplinks and enough power capacity for mixed camera systems. Its two 90W-capable ports can support selected high-demand PTZ or multi-sensor devices, while the remaining ports handle standard PoE and PoE+ endpoints within the shared 375W budget. Cloud and web management provide visibility beyond an unmanaged switch, and PoE Watchdog can restart failed supported camera connections automatically. STP/RSTP, loop protection, VLANs and fibre uplinks provide useful network-design flexibility. Supplied by Security Wholesalers, this switch is best selected after calculating the complete PoE budget, uplink bandwidth and management requirements.

Buyer Decision Tips

PoE Budget Tip: Add the maximum power requirement of every connected device and keep practical headroom below 375W. Two 90W devices can consume almost half of the available budget before the other 22 ports are considered.

Uplink Tip: Choose copper or SFP uplinks according to distance, bandwidth, electrical isolation and redundancy requirements. Confirm that the selected SFP modules and fibre type match each other and the connected network equipment.

Key Features & Technical Specifications

Model	DH-CS4228-24GT-375
Product Type	28-port Layer 2 cloud-managed Gigabit PoE switch.
PoE Access Ports	24 × RJ45 10/100/1000Mbps PoE ports.
Copper Uplink Ports	2 × RJ45 10/100/1000Mbps uplink ports.
Optical Uplink Ports	2 × SFP 1000Mbps uplink ports.
Total Port Count	28.
PoE Standards	IEEE 802.3af, IEEE 802.3at, IEEE 802.3bt and Hi-PoE.
Per-Port PoE Output	Ports 1–2: up to 90W each; ports 3–24: up to 30W each.
Total PoE Budget	Up to 375W.
PoE Pin Assignment	Pins 1, 2, 4 and 5 positive; pins 3, 6, 7 and 8 negative.
PoE Management	PoE power-consumption management and individual PoE power on/off.
PoE Watchdog	Supported for automatic restart of failed compatible powered-device connections.
Long-Distance PoE	Up to 250m with bandwidth reduced to 10Mbps.
Management	DoLynk Care app cloud management and local web management.
Topology Management	LLDP-based network-topology generation and display.
Network Layer	Layer 2.
Switching Capacity	56Gbps.
Packet Forwarding Rate	41.66Mpps.
Packet Buffer	4Mbit.
MAC Address Table	8K entries.
Jumbo Frames	Up to 15K bytes.
VLAN Capacity	32 port-based VLANs.
Spanning Tree	STP and RSTP.
Loop Protection	Supported.
Flow Control	IEEE 802.3x.
DHCP	DHCP client.
Ethernet Standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3x, IEEE 802.3ab and IEEE 802.3z.
Reset Button	1.
Power Supply	Built-in 100–240V supply, 47–63Hz, maximum 7A.
Power Consumption	Idle: no more than 12.5W; full load: 400W.
Operating Temperature	–10 °C to +55 °C.
Operating Humidity	5%–95% RH, non-condensing.
Storage Temperature	–40 °C to +70 °C.
Storage Humidity	5%–95% RH, non-condensing.
Electrostatic Protection	8kV air discharge and 6kV contact discharge.
Lightning Protection	4kV common mode and 2kV differential mode.
Chassis	Fully enclosed sheet-metal casing.
Installation	Desktop or rack mount.
Dimensions	440 × 220 × 44mm.
Net Weight	2.66kg.
Gross Weight	3.26kg.
Packaging Dimensions	540 × 342 × 90mm.
MTBF	67.80 years, as specified by Dahua.

Ideal Use Cases

Medium CCTV Systems

Power and connect up to 24 compatible IP cameras while using dedicated copper or fibre uplinks for an NVR and the wider network.

High-Power PTZ Installations

Ports 1 and 2 can supply compatible IEEE 802.3bt or Hi-PoE devices requiring up to 90W, within the total 375W budget.

Warehouses and Factories

The metal chassis, remote cloud monitoring and long-distance PoE mode suit distributed camera systems across larger commercial sites.

Retail and Hospitality Networks

Provides managed PoE connectivity for cameras, access points, intercoms and supported network endpoints across shops, restaurants, cafés and hotels.

Multi-Building Fibre Uplinks

Two 1Gbps SFP uplinks can connect compatible fibre modules and backbone cabling where copper distance or electrical isolation is a concern.

Remotely Maintained Sites

DoLynk Care alerts, topology visualisation and PoE Watchdog can assist service providers managing systems across multiple locations.

Choosing the Right Model

Choose the DH-CS4228-24GT-375 if: You need 24 Gigabit PoE ports, four Gigabit uplinks, cloud management and a 375W budget.
Choose a lower-power model if: The connected devices use substantially less than 375W and no 90W ports are required.
Choose a higher-capacity switch if: More than 24 powered ports, a larger PoE budget or faster than 1Gbps uplinks are required.
Choose a Layer 3 switch if: Inter-VLAN routing, advanced routing protocols or core-network functions must be performed by the switch itself.
Plan long-distance mode carefully: The 250m feature reduces port bandwidth to 10Mbps and should be reserved for compatible endpoints whose traffic fits that limit.

FAQs

How are the 28 ports arranged on the Dahua DH-CS4228-24GT-375?
The DH-CS4228-24GT-375 provides 24 RJ45 10/100/1000Mbps PoE access ports, two RJ45 10/100/1000Mbps uplink ports and two 1Gbps SFP uplink ports. This gives installers four dedicated Gigabit uplinks for recorder, core-switch or fibre connections. The required network design, SFP type, fibre standard and uplink redundancy should be confirmed for the complete system.
How is the 375W PoE budget distributed?
The total PoE power budget is up to 375W across the 24 powered ports. Ports 1 and 2 can each supply up to 90W for compatible IEEE 802.3bt or Hi-PoE devices, while ports 3–24 support up to 30W each. The total connected demand must remain within 375W, with practical headroom allowed for device start-up and future additions.
Can the switch transmit PoE beyond the normal Ethernet distance?
Yes. Dahua lists long-distance PoE transmission up to 250 metres on supported ports, with bandwidth reduced to 10Mbps in this mode. Cable quality, conductor material, terminations, device power demand and environmental conditions affect performance. Standard Gigabit operation should be used where possible, while extended mode should be planned specifically for compatible low-bandwidth endpoints such as selected security cameras.
What can be managed through DoLynk Care?
The switch supports cloud management through the DoLynk Care app as well as local web management. Dahua lists real-time network monitoring, device-status viewing, fault alarms, notifications and topology visualisation using LLDP. Cloud functions require an available internet connection, account setup and supported regional services. Network-security settings, user access and firmware management should be included in the commissioning process.
What does the PoE Watchdog function do?
PoE Watchdog monitors supported powered-device connections and can restart a failed PoE port when an IP-camera connection exception is detected. This may restore a camera without an immediate site visit. It does not repair cabling faults, incompatible devices, exhausted PoE budgets or persistent network problems, so repeated restarts should be investigated rather than treated as a permanent solution.
Is the CS4228-24GT-375 a Layer 3 switch?
No. Dahua specifies this model as a Layer 2 smart-managed switch. It supports functions such as STP/RSTP, port-based VLANs, IEEE 802.3x flow control, a DHCP client, loop protection and web or app management. Advanced Layer 3 routing, inter-VLAN routing and enterprise core-routing functions are not listed, so another router or Layer 3 switch may be required.
Can the switch be installed in a standard equipment rack?
Yes. Dahua lists both desktop and rack-mount installation. The chassis measures 440 × 220 × 44mm, which is approximately one rack unit high, and weighs 2.66kg. Allow suitable front and rear clearance for ventilation, mains power, copper patch leads and SFP cabling. The operating environment must remain between –10 °C and +55 °C without condensation.
What should I confirm before ordering this PoE switch?
Calculate the combined PoE load, confirm whether any device needs the 90W ports, and check the required copper and fibre uplinks. Also verify rack space, mains capacity, cable distances, VLAN requirements and whether Layer 2 management is sufficient. Security Wholesalers can assist with matching the switch to compatible cameras, recorders, wireless access points and the overall network design.

Additional Information

Dahua DH-CS4228-24GT-375 Datasheet

SKU: DH-CS4228-24GT-375 Categories: Dahua, Dahua Network Switches