Siemens SCALANCE X-400 Operating Instructions Manual page 115

Port Statuses in DMode C
In display mode C, the current mode (half duplex, full duplex) is indicated.
Port Color
P1
P2
P3
P4
Green
Figure 6-31
Note
If there is a link fault and the type of transmission is fixed (autonegotiation off), in
DMode C, the desired status, in other words the set type of transmission (full or
half duplex) continues to be displayed. If there is a link fault and autonegotiation is
active, the port LED goes off.
Operating Instructions for SCALANCE X-400 Industrial Ethernet Switches
C79000-G8976-C186-03
Status
off
on
Mode display (full/half duplex) of port 1
Installation and Commissioning
Meaning
Port operating in half duplex
Port operating in full duplex
115