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Description of the device
4.7 LED display
Meaning in display mode D
In display mode D, the "L1" and "L2" LEDs indicate whether the power supply is monitored.
LED color
-
Green
4.7.7
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 34)".
Meaning in display mode A
In display mode A, the port LEDs indicate whether a valid link exists.
LED color
-
Green
Yellow
* 1 period ≙ 2.5 seconds
Meaning in display mode B
In display mode B, the port LEDs indicate the transmission speed.
LED color
-
Green
Orange
Green
If there is a connection problem and the type of transmission is fixed (auto negotiation off), the
desired status, in other words the set transmission speed (10 Gbps, 1000 Mbps, 100 Mbps, 10
36
L1/L2 LED
L1/L2 connector
LED status
Off
Power supply is not monitored.
If the power supply falls below 17 V, the signaling contact does not
respond.
On
Power supply is monitored.
If the power supply falls below 17 V, the signaling contact responds.
LED status
Off
On
Flashes once per period*
Flashes three times per pe‐
riod*
Flashes four times per pe‐
riod*
Flashing / lit
LED status
Off
On
On
Flashing
Meaning
No valid link to the port (for example communications part‐
ner turned off or cable not connected).
Link exists and port in normal status. In this status, the port
can receive and send data.
Link exists and port in "Blocking" status. In this status, the
port only receives management data (no user data).
Link exists and port turned off by management. In this sta‐
tus, no data is sent or received via the port.
Link exists and is in the "Monitor Port" status. In this status,
the data traffic of another port is mirrored to this port.
Receiving data at port
Meaning
Port operating at 10 Mbps
Port operating at 100 Mbps
Port operating at 1000 Mbps
Port operating at 10 Gbps
Operating Instructions, 03/2021, C79000-G8976-C306-10
SCALANCE XM-400
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