Connecting up 
  5.2 Power supply 
SCALANCE X-200 
Operating Instructions, 03/2015, C79000-G8976-C284-06 
45 
Supply for X208PRO 
Power supply for X208PRO 
With the IE switch SCALANCE X208PRO, the power supply is connected via two 4-pin a-
coded M12 sockets. 
●  The power supply can be connected redundantly. 
–  Both inputs are isolated. 
–  No load distribution. 
–  The power supply unit with the higher output voltage supplies the device alone. 
●  Power: 24 VDC 
●  The power supply is connected over a high resistance with the enclosure to allow an 
ungrounded set up. 
●  The power supply is non-floating. 
●  The signal cables of the electrical Ethernet interfaces are floating. 
The following table shows the pin assignment: 
 
Supply for IRT-PRO devices 
Power supply for the devices of the IRT PRO version 
The following descriptions of the power supply apply to the following devices: 
●  X201-3P IRT PRO 
●  X202-2P IRT PRO 
●  X204IRT PRO 
The power supply is connected via the push-pull Power Plug PRO. This plug has a high 
degree of protection (IP65/IP67) and is suitable for use outside cabinets and complies with 
PROFINET connector technology. 
The Power Plug PRO does not ship with the device and can be ordered under the following 
order number: 6GK1907-0AB10-6AA0