DS-3E0528HP-E
24-Port Gigabit PoE Switch, 370 W, Hi-PoE
- 24 Gigabit PoE ports, 370 W budget
- 4 Hi-PoE ports up to 90 W each
- 2 RJ45 + 2 SFP uplinks
- PoE watchdog, 300 m long range
DS-3E0528HP-E
24-Port Gigabit PoE Switch, 370 W, Hi-PoE
- 24 Gigabit PoE ports, 370 W budget
- 4 Hi-PoE ports up to 90 W each
- 2 RJ45 + 2 SFP uplinks
- PoE watchdog, 300 m long range
Key specs
- 20 × Gigabit PoE ports (802.3af/at, 30 W) + 4 × Gigabit Hi-PoE ports (802.3bt, 90 W)
- 2 × Gigabit RJ45 + 2 × Gigabit SFP fiber uplink ports
- Total PoE budget 370 W
- Unmanaged: plug and play
- Long-range PoE up to 300 m (1,000 ft) on ports 21 to 24
- PoE watchdog restarts cameras that stop responding; port isolation
- Switching capacity 56 Gbps, forwarding 41.664 Mpps, MAC table 8 K
- 6 kV surge protection on PoE ports, metal rack housing 440 mm
- 100-240 V AC, max. 400 W; 0 °C to 45 °C
Know before you buy
Quick answers about the DS-3E0528HP-E, and how it compares.
How many cameras can this PoE switch power?
Two limits apply: the number of PoE ports, and the total PoE budget in watts. Add up the maximum power of each camera from its datasheet and keep about 20% spare. Example: 16 cameras at 6 W each need 96 W, plus 20% is about 115 W, so a switch with a 125 W budget or more is right. A PoE port (802.3af) gives up to 15.4 W and a PoE+ port (802.3at) up to 30 W. PTZ cameras and cameras with heaters, strong IR or strobe lights need PoE+ or Hi-PoE (802.3bt). Not sure? Send us your camera list and we size it for you.
What is Hi-PoE (802.3bt)?
Hi-PoE (IEEE 802.3bt) sends much more power on one network cable than normal PoE: up to 90 W on a port of this switch, compared with 30 W for PoE+. Use it for PTZ cameras, cameras with heaters or strong IR, and other high-power devices, so you do not need a separate power supply at the camera. The total PoE budget of the switch still applies.
What is long-range PoE, up to 300 m?
A normal network cable run is limited to 100 m (330 ft). In long-range (extend) mode the switch lowers the port speed to 10 Mbps, so data and power can travel up to 300 m (1,000 ft) on one good quality copper Cat6 cable. 10 Mbps is enough for one camera, so use this mode for one camera per port, for example at a far gate or along a boundary wall. For longer runs use fiber with SFP modules.
Unmanaged, smart or managed switch: which one do I need?
Unmanaged switches are plug and play, with nothing to set up: good for small systems. Smart (web managed) switches add a web page and app view for VLANs, port status, cable checks and, on many models, PoE watchdog, so you can find and fix problems from your desk. Managed (Layer 2+ or Layer 3) switches add full control, routing and ring protection for large sites, campuses and city projects. For most CCTV jobs with 8 to 48 cameras, a smart PoE switch is the best value. Ask us if you are not sure.