Installation
3.6 Fitting an extender
SCALANCE XM-400
Operating Instructions, 05/2014, C79000-G8976-C306-03
41
Fitting an extender
Position
The following figure shows the elements required to connect two devices.
Locking mechanism (on the rear of the device)
Multipole connector for connection to the expansion interface
Expansion interface with cover
Via the expansion interface, the basic device supplies the extenders with power and
manages the ports of the extenders.
The power provided by the PE408PoE port extender for Power over Ethernet does not come
from the basic device. Connect an external power source.
You have the following options when connecting devices:
● You can connect the devices and mount them together on a DIN or S7 standard rail.
● You can mount a device on a DIN or S7 standard rail and expand it later.
Note
For mounting on a rail as well as for removing from the rail, plan enough space between
the devices, see section "
Extender dimension drawings (Page 70)".
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