19
● Port LED
Port LED
Display mode
Behavior
Description
Left
STATUS/ECO
(when the LOOP
HISTORY LED is
off)
Green Light
Link is established at 10/100/1000 Mbps.
Green Blink
Transmitting and receiving data.
Orange Light
Shut off by the loop detection/shutoff function.
Off
No device connected, or set to ECO mode.
STATUS/ECO
(when the LOOP
HISTORY LED is
blinking)
Green Light
Within three days after a loop has been elimi
-
nated.
Off
No loop detection history.
Right
PoE
Orange Light
Power is supplied normally.
(ports 1-24 only)
Orange Blink
Overload power supply or overload in a single
port. (ports 1-24 only)
Off
Power is not supplied or PoE receiving equipment
is not connected.
* port 25 and 26 are always off.
Figure 1-1 Port LEDs