Configuration, displays and display elements
7.5 LED display
SCALANCE X-300
154 Operating Instructions, 05/2016, A5E01113043-20
yellow flashes / lit Receiving data at port.
With SCALANCE X-300 devices, both the receipt and the
sending of data is indicated for the optical gigabit ports.
Meaning in display mode B
Port operating at 10 Mbps.
Port operating at 100 Mbps.
Port operating at 1000 Mbps.
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
Port operating in half duplex.
Port operating in full duplex.
Meaning in display mode D
- off The port is not monitored; in other words, if a link is not
established at the port, this does not trigger the signaling
green on The port is monitored, in other words, if no connection
was established at the port (for example no cable insert-
ed), this triggers the signaling contact and an error state
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