Siemens SCALANCE X-400 Operating Instructions Manual page 128

Configuration / project engineering
6.5 LED display
Port statuses in DMode B
In display mode B, the current transmission rate is displayed.
Port
P1
P2
P3
P4
Figure 6-10
Note
If there is a link fault and the type of transmission is fixed (autonegotiation off), in DMode B,
the desired status, in other words the set transmission rate (1000 Mbps, 100 Mbps, 10
Mbps) continues to be displayed. If there is a link fault and autonegotiation is active, the port
LED goes off.
Port statuses in DMode C
In display mode C, the current mode (half duplex, full duplex) is indicated.
Port
P1
P2
P3
P4
128
Color Status Meaning
off Port operating at 10 Mbps
Green on Port operating at 100 Mbps
Yellow on Port operating at 1000 Mbps
Display of the transmission speed of port 1
Color Status Meaning
off Port operating in half duplex
Green on Port operating in full duplex
Operating Instructions, 06/2015, C79000-G8976-C186-12
SCALANCE X-400