Siemens SCALANCE XM-400 - Port Leds

Description of the device
2.7 LED display
SCALANCE XM-400
Operating Instructions, 05/2014, C79000-G8976-C306-03
27
2.7.7
Port LEDs
The port LEDs "P1", "P2" etc. show information about the corresponding ports.
The meaning of the Port LEDs depends on the set display mode, see section "LEDs "DM1"
and "DM2" (Page 25)".
Meaning in display mode A
In display mode A, the port LEDs indicate whether a valid link exists.
LED color
LED status
Meaning
- Off No valid link to the port (for example station turned off or
cable not connected).
Green On Link exists and port in normal status. In this status, the
port can receive and send data.
Flashes once per period* Link exists and port in "blocking" status. In this status, the
port only receives management data (no user data).
Flashes three times per
period*
Link exists and port turned off by management. In this
status, no data is sent or received via the port.
Flashes four times per
period*
Link exists and is in the "monitor port" status. In this
status, the data traffic of another port is mirrored to this
port.
Yellow
Flashing / lit
Receiving data at port
* 1 period ≙ 2.5 seconds
Meaning in display mode B
In display mode B, the port LEDs indicate the transmission speed.
LED color
LED status
Meaning
-
Off
Port operating at 10 Mbps
Green
On
Port operating at 100 Mbps
Orange
On
Port operating at 1000 Mbps
Green
Flashing
Port operating at 10 Gbps
If there is a connection problem and the type of transmission is fixed (autonegotiation off),
the desired status, in other words the set transmission speed (1000 Mbps, 100 Mbps, 10
Mbps) continues to be displayed. If there is a connection problem and autonegotiation is
active, the port LED goes off.
Meaning in display mode C
In display mode C, the port LEDs indicate the mode.
LED color
LED status
Meaning
- Off Port operating in half duplex mode
Green
On
Port operating in full duplex mode