Gratuit · Réseau et infrastructure IT
Calculateur de budget PoE.
Vérifiez le budget PoE d’un switch face aux caméras, bornes Wi-Fi et téléphones selon la classe IEEE, la norme du port (802.3af/at/bt) et la consommation réelle.
Some devices are not compatible with the port standard or exceed their class.
- Remaining budget
- 13.6 W
- Power at the devices
- 204 W
- Ports used
- 23 / 24
- Heat from devices and cable loss
- 1,216 BTU/h
Devices
| Device | Qty | Class | Reserved at switch | Notes |
|---|---|---|---|---|
| Wi-Fi 6 access point | 4 | 4 | 120 W | OK |
| IP phone | 12 | 2 | 84 W | OK |
| Fixed IP camera | 6 | 3 | 92.4 W | OK |
| PTZ camera | 1 | 6 | 60 W | needs class 6; 802.3at ports give up to class 4 |
- Class reservations are the IEEE power at the switch port (15.4, 30, 60 or 90 W…), which includes the worst-case loss in 100 m of cable.
- Many switches also limit power per port group or need a second power supply for the full PoE budget; check the switch datasheet.
Comment utiliser cet outil: Calculateur de budget PoE
Saisissez ou sélectionnez vos données. Réglez les options, générez le résultat puis vérifiez-le avant de le copier ou de le télécharger.
Limites et formats acceptés
Vos données sont traitées sur votre appareil.
Notes techniques en anglais
Device profiles are typical values; use the datasheet class. Per-port-group limits and redundant power supplies are not modelled. Everything is calculated in your browser; nothing is sent or probed on the network.
Class allocation reserves the IEEE power at the switch port for each class (15.4, 30, 60, 90 W…). Actual-draw mode scales the device draw by the class’s worst-case cable loss.
4 Wi-Fi 6 APs, 12 phones, 6 cameras and a PTZ reserve 356 W of a 370 W budget; the class 6 PTZ is flagged on 802.3at ports.