Siemens SIMATIC NET SCALANCE XM-400 Series Operating Instructions Manual page 37

Mbps) continues to be displayed. If there is a connection problem and auto negotiation is active,
the port LED goes off.
Meaning in display mode C
In display mode C, the port LEDs indicate the mode.
LED color
-
Green
Meaning in display mode D
In display mode D, the port LEDs indicate whether the port is monitored.
LED color
-
Green
Meaning in display mode E
In display mode E, the port LEDs indicate whether the connected device is supplied using PoE.
LED color
-
Green
SCALANCE XM-400
Operating Instructions, 03/2021, C79000-G8976-C306-10
LED status
Off
On
LED status
Off
On
LED status
Off
On
Meaning
Port operating in half duplex mode
Port operating in full duplex mode
Meaning
Port is not monitored.
If no link was established at the port the signaling contact
does not indicate an error.
Port is monitored.
If no link was established at the port the signaling contact
indicates an error.
Meaning
The connected device is not supplied using PoE.
The connected device is supplied via PoE.
Description of the device
4.7 LED display
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