Siemens SCALANCE XP208EEC, Руководство по эксплуатации

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4.7 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.
PoE ports
• The PoE ports are M12 sockets. Ports P5 to P8, P13 and P15 are D-coded, ports P14 and P16
are X-coded.
• Depending on the connected power supply, the device can supply power consumers of the
standard IEEE 802.at type 1 or type 2
• The PoE ports are not isolated from each other. This means that they meet the conditions
named in Environment A (IEEE 802.3): Power supply over Ethernet within a power supply
system.
The electrical isolation of the ports is designed for 500 Vrms (1 minute).
Description of the device
4.7 Power over Ethernet (PoE)
SCALANCE XP-200
Operating Instructions, 03/2021, C79000-G8976-C428-08
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