Siemens SCALANCE X-300 Series Compact Operating Instructions page 38

Device description
4.4 LED display
Meaning in display mode B
LED color
-
green
orange
If there is a problem on the connection 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 problem on the connection and autonegotiation
is active, the port LED goes off.
Meaning in display mode C
LED color
-
green
Meaning in display mode D
LED color
-
green
orange
38
LED status
off
on
on
LED status
off
on
LED status
off
on
on
Meaning
Port operating at 10 Mbps.
Port operating at 100 Mbps.
Port operating at 1000 Mbps.
Meaning
Port operating in half duplex.
Port operating in full duplex.
Meaning
The port is not monitored; in other words, if a link is not
established at the port, this does not trigger the signaling
contact.
The port is monitored, in other words, if no connection was
established at the port (for example no cable inserted), this
triggers the signaling contact and an error state results.
The port is monitored, in other words, when a valid con‐
nection exists at the port (for example non-permitted cable
inserted), this triggers the signaling contact and an error
state results.
Compact Operating Instructions, 11/2019, A5E00982643-18
SCALANCE X-300