Technical specifications
8.8 X-300M PoE technical specifications
SCALANCE X-300
192 Operating Instructions, 10/2010, A5E01113043-10
8.8.2 Connectors and electrical data
Connectors and electrical data
Electrical data
Power supply 24 V DC (19.2 to 28.8 V)
Current consumption 2 A
Max. power consumption
(including PoE power supply of the
connected PoE devices (PDs))
48 W
Effective power loss 17 W
Overcurrent protection of the power
supply
Non-replaceable fuse (F) 3 A / 32 V and 5 A / 125 V (PoE)
Connection of end devices or network components
Number of electrical ports 4 x RJ-45 jacks, MDI-X pinning,
100/1000 Mbps half/full duplex,
power supply for connected devices (PDs) using Power over
Ethernet (PoE) according to IEEE 802.3af / 802.3at (type 1)
Number of media module slots 2 x modular (2 ports per slot)
Transmitter output optical and
receiver input
Values depending on the MM900 media modules and SFP
transceivers used.
Power over Ethernet at port P1, P2, P3, P4
PoE function within a power supply
system
According to IEEE 802.3af / 802.3at (type 1) for
environment A
Method of PoE power feed Phantom power
(refer to the following table for the pin assignment)
Reserved power per port 15.4 W at port,
of which the following can be used by the PD: 12.95 W
Overall power on all 4 ports max. 30.8 W
Electrical isolation
between ports P1, P2, P3 and P4 no
between ports and ground yes
between ports and 24 V DC power
input
yes
Power supply 24 V DC
Redundant power input yes
Redundant power supply units no
Connector 1 x 4-pin plug-in terminal block
24 V DC signaling contact
Power 24 V DC
Connector for signaling contact 1 x 2-pin plug-in terminal block
Switching capacity (resistive load) max. 100 mA
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