4.7
Power over Ethernet
Function
The "Power over Ethernet" function supplies connected devices with power via the Ethernet
cable. Devices supplied with power via an Ethernet cable do not require a separate voltage
source.
PoE-compliant devices can be divided into the following groups:
• Power source (PSE - Power Sourcing Equipment)
These inject power onto the Ethernet cable.
• Power consumer (PD - Powered Device)
These are supplied with power via the Ethernet cable.
4.7.1
Power and voltage range according to the standard
Note the values specified for the power of the power source, so that the power supply is ensured
at the power consumers according to the standard.
PoE class
Power supplied by the pow‐
er source
Available power at the pow‐
er source
Type
Standard
Designation
0
15.4 W
12.95 W
1
IEEE802.3af
PoE
1
4
3.84 W
2
7
6.49 W
3
15.4 W
12.95 W
4
30
25.5 W
2
IEEE802.3at
PoE+
5
45
40 W
3
IEEE802.3bt
4-pair PoE
6
60
51 W
4.7.2
PoE properties of the devices
Note
Turn off the power source before you disconnect the PoE cable of a power consumer.
Description of the device
4.7 Power over Ethernet
SCALANCE XR-300WG
32
Operating Instructions, 03/2021, C79000-G8976-C454-07
Содержание SCALANCE XR-300WG
Страница 10: ...Safety notices SCALANCE XR 300WG 10 Operating Instructions 03 2021 C79000 G8976 C454 07 ...
Страница 16: ...Recommendations on network security SCALANCE XR 300WG 16 Operating Instructions 03 2021 C79000 G8976 C454 07 ...
Страница 98: ...Approvals SCALANCE XR 300WG 98 Operating Instructions 03 2021 C79000 G8976 C454 07 ...