Panasonic PN28160A Operation Manual page 12

 Port LED display mode LED
In the status mode described later, port LED shows linkup and communication status. By pressing
the LED display switch button in the front panel, the display mode of port LED can be changed
as follows.
Port LED display mode
STATUS/ECO
GIGA
100M
FULL
LOOP HISTORY
 Port LED
According to switchover in the port LED display mode, described previously, display of port
LED in each port changes as follows.
Port LED Display mode
Left STATUS/ECO
GIGA
100M
FULL
LOOP HISTORY
Right
Shows linkup and communication status.
Shows linkup status at 1000 Mbps.
Shows linkup status at 100 Mbps.
Shows linkup status at full-duplex or half-duplex.
Shows loop history and port shut-off status.
Behavior
Green Light
Green Blink
Off
Green Light
Off
Green Light
Off
Green Light
Off
Green Light
Off
Orange Light

Off
12
Description
Description
Link is established.
Transmitting and receiving data.
No device connected.
Link is established at 1000 Mbps.
Link is established at 100 Mbps or 10 Mbps, or
no device is connected.
Link is established at 100 Mbps.
Link is established at 1000 Mbps or 10 Mbps, or
no device is connected.
Link is established at full-duplex.
Link is established at half-duplex or no device is
connected.
Within 3 days after loop removed.
No loop detection history.
Shutting down by loop detection.
Not shutting down by loop detection.