Dahua CS4228-24GT-240 – 28-Port Cloud Managed Switch, 24× Gigabit PoE, 240 W

The Dahua CS4228-24GT-240 is a 28-port, cloud-managed desktop/rack-mount Layer 2 gigabit switch designed to power and connect IP cameras, wireless access points, and other security devices in mid-sized networks. With a total PoE budget of 240 W and support for IEEE 802.3af/at, Hi-PoE, and IEEE 802.3bt, it delivers ample power even for high-demand devices, while management is available locally via a web interface or remotely through the DoLynk Care application.

Key features

• Ports: 24× RJ-45 10/100/1000 Mbps (PoE, ports 1–24), 2× RJ-45 Gigabit uplink (ports 25–26), 2× SFP 1000 Mbps uplink (ports 27–28)
• PoE standard: IEEE 802.3af, IEEE 802.3at, Hi-PoE, IEEE 802.3bt – ports 1–2 up to 90 W, ports 3–24 up to 30 W, total ≤ 240 W
• Switching performance: 56 Gbps switching capacity, 41.66 Mpps packet forwarding rate
• Layer: Layer 2; MAC table: 8K entries; packet buffer: 4 Mbit; Jumbo Frame: 15,360 B
• VLAN: up to 32 VLANs (port-based), STP/RSTP, IEEE 802.3x flow control, loop protection
• Cloud management: DoLynk Care (web and mobile app), network topology visualisation via LLDP
• PoE Watchdog: automatic PoE port restart on traffic loss; Long Distance PoE up to 250 m at 10 Mbps
• DIP switch: fast enable/disable of Cloud-Managed, PoE Watchdog, and Long Distance PoE modes
• Power supply: built-in 100–240 V AC, 47–63 Hz, max. 4 A; idle consumption ≤ 12.5 W, max. 265 W
• Protection: ESD protection 8 kV (air discharge) / 6 kV (contact discharge); lightning protection 4 kV (common mode) / 2 kV (differential mode)
• Housing: full metal enclosure, desktop or 19″ rack mount (1U)
• Dimensions: 440 × 220 × 44 mm; net weight 2.50 kg
• Operating temperature: –10 °C to +55 °C; storage temperature: –40 °C to +70 °C
• Standards: IEEE 802.3, 802.3u, 802.3x, 802.3ab, 802.3z, 802.3az, 802.3ad

The Dahua CS4228-24GT-240 is an ideal solution for security systems, offices, hotels, and retail environments requiring centralised power delivery and management of a large number of IP devices from a single point.