Connecting
5.4 Power supply
SCALANCE X-300M
38
Compact Operating Instructions, 10/2014, A5E02630801-06
5.4
Power supply
5.4.1
Power supply - general
WARNING
Danger to life: 100 ... 240 V power supply possible.
Please note that the devices may have a 100 to 240 V or a 24 V power supply.
You can recognize the type of power supply on the type plate, a warning on the device and
the labeling of the connector to the power supply.
The devices are also listed in a table for 100 to 240 V voltage and a table for 24 V safety
extra-low voltage (SELV).
CAUTION
Coding of the terminal blocks
The 100 to 240 V and 24 V terminal blocks are coded for installation.
CAUTION
Power supply of the MM900 media modules
The MM900 media modules are supplied with the required voltage via the modular devices
(M).
CAUTION
Power supply of the SFP transceivers
The SFP transceivers are supplied with the required voltage via the SFP media module in a
modular device (M).
5.4.2
12 / 24 VDC - product group X-300M
Table 5- 2
24 to 48 VDC safety extra-low voltage overview
Device
Device version
(power supply)
24 V safety extra-low voltage
(SELV)
can be connected redundantly
X308-2M
1 x 24 VDC
●
X308-2M TS
1 x 12 VDC
●