Siemens SCALANCE X101-1 Operating Instructions Manual page 34

Connecting up
5.2 Power supply
Pin number
Pin 1
Pin 2
Pin 3
Pin 4
Incorrect power supply
The power supply unit to supply the device must comply with NEC Class 2 (voltage range
18 - 32 V, current requirement 350 mA).
Do not operate the device with an AC voltage.
Never operate the device with DC voltages higher than 32 VDC.
The equipment is designed for operation with Safety Extra-Low Voltage (SELV) by a
Limited Power Source (LPS).
This means that only SELV / LPS complying with IEC 60950-1 / EN 60950-1 / VDE 0805-1
must be connected to the power supply terminals. The power supply unit for the equipment
power supply must comply with NEC Class 2, as described by the National Electrical Code
(r) (ANSI / NFPA 70).
If the equipment is connected to a redundant power supply (two separate power supplies),
both must meet these requirements.
34
Assignment
L1+ (24 VDC)
M1 (ground)
M2 (ground)
L2+ (24 VDC)
WARNING
WARNING
SCALANCE X-100 media converter
Operating Instructions, 04/2016, C79000-G8976-C346-02