Siemens SCALANCE XP-200, Руководство по эксплуатации

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Description of the device
2.7 Power over Ethernet (PoE)
SCALANCE XP-200
Operating Instructions, 05/2016, C79000-G8976-C428-01
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2.7 Power over Ethernet (PoE)
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.
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.
802.3at Type 1 - PoE 802.3at Type 2 - PoE+
Maximum power supplied by the power
source
15.40 W 30.0 W
Available power at the power source 12.95 W 25.50 W
Voltage range Power source 44.0 ... 57.0 V 50.0 ... 57.0 V
Power consumer 37.0 ... 57.0 V 42.5 ... 57.0 V
PoE variants
The PoE variants of SCALANCE XP-200 are power sources and have 4 or 8 PoE ports. Via
the PoE ports, devices capable of PoE can be supplied with power via the Ethernet cable.
Note
You can also use the PoE ports without the PoE function. A voltage is applied only after the
device has detected an end device capable of PoE at the port. With devices not capable of
PoE, only the data connection is used.