SCALANCE XM-400
Operating Instructions, 09/2018, C79000-G8976-C306-08
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Description of the device
Properties and functions
SCALANCE XM-400 product group
The product group SCALANCE XM-400 consists of basic devices (compact switches) and
extenders (port extenders and function extender).
SCALANCE XM-400 basic device
Basic properties
The SCALANCE XM-400 basic devices are modular compact switches with fixed RJ-45
ports (10/100/1000 Mbps) and SFP transceiver slots that can be equipped individually. The
SFP transceiver slots are combo ports.
A SCALANCE XM-400 can manage a maximum of 24 ports with 10/100/1000 Mbps.
The following components exist only on the basic device:
● CPU
● Power supply
● Signaling contact
● Out-of-band port
● Serial interface
● "SELECT / SET" button
The basic devices can be expanded with additional ports and functions by using an
extender. The extenders are connected to the side of the basic device. Each basic device
has an expansion interface to the left for function extenders and to the right an expansion
interface for port extenders.
Depending on the number of ports of the basic device (10/100/1000 Mbps) up to 2 port
extenders can be added. Further port extenders are not supplied with power. There is no
particular order in which the port extenders need to be added.
Example:
● The basic device SCALANCE XM408-8C has 8 ports. It can therefore be expanded by 2
port extenders each with 8 ports.
● The basic device SCALANCE XM416-4C has 16 ports. It can therefore be expanded by
one port extender with 8 ports.
A function extender can be added.
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