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Product Characteristics
4.2 SCALANCE X101-1
4.2.6
SCALANCE X101-1 Power Supply and Signaling Contact
Power Supply
The power supply is connected using a 4-pin plug-in terminal block. The power supply can
be connected redundantly. Both inputs are isolated. There is no distribution of load. When
using a redundant power supply, the power supply unit with the higher output voltage
supplies SCALANCE X101-1 alone. The power supply is connected over a high resistance
with the enclosure to allow an ungrounded setup.
Figure 4-3
Warning
The SCALANCE X101-1 device is designed for operation with safety extra-low voltage. This
means that only safety extra-low voltages (SELV) complying with IEC950/EN60950/
VDE0805 can be connected to the power supply terminals.
The power supply unit to supply SCALANCE X101-1 must comply with NEC Class 2 (voltage
range 18-32 V, current requirement 200 mA).
If the device is connected to a redundant power supply (two separate power supplies), both
must meet these requirements.
The signaling contact can be subjected to a maximum load of 100 mA (safety extra-low
voltage (SELV), DC 24 V).
Never connect SCALANCE X101-1 to AC voltage.
Never operate SCALANCE X101-1 with DC voltage higher than 32 V DC.
4-6
Power supply SCALANCE X101-1
Figure 4-4 Connector pinout
Pin number Pinout
Pin 1
Pin 2
Pin 1
Pin 2
Industrial Ethernet Media Converters SCALANCE X-100 Series
Commissioning Manual, 07/2008, A2B00051521A
L1+ (+18 - 32V DC)
M1 (ground)
M2 (ground)
L2+ (+18 - 32V DC)
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