POWER1 LED
POWER2 LED
S
D
C
A
R
D
POWER1 LED and POWER2 LED
Green Light
Off
STATUS LED
Green Light
Green Blink
Orange Light
Orange Blink
Off
SD CARD LED
Green Light
Green Blink
Orange Light
Off
STACK ID LED
Indicating "H" and the STACK ID alternately : Master switch
Indicating "h" and the STACK ID alternately : Backup master switch
Indicating the STACK ID
*The following information is also displayed depending upon the device's state.
"P" : Power failure
"11" : Fan1 failure
"12" : Fan2 failure
"13" : Fan1 or Fan2 failure
"L"
: Within 3 days after a loop resolution
Port LED (SFP Port 1-24)
Green Light
Green Blink
Orange Light
Orange Blink
Off
Port LED (Port 21-24)
Green Light
Green Blink
Orange Light
Orange Blink
Off
STACK ID LED
L
E
D
S
T
A
T
U
S
L
E
D
: Power is ON.
: Power is OFF. Or, an internal power fault.
: The system is normally operating.
: There're one or some ports which are within 3 days after a loop resolution
: Starting up
: Malfunction (Contact the seller.)
: Power is OFF.
: SD card inserted
: Reading/writing data
: SD card error
: No SD card
: Link is established at 1000 Mbps.
: Transmitting and receiving data at 1000 Mbps.
: Shutting off due to loop detection and shutoff functions/storm controls/
BPDU guard
: Transmitting and receiving just the administration packets
: No devices are connected.
: Link is established at 10/100/1000 Mbps.
: Transmitting and receiving data at 10/100/1000 Mbps.
: Shutting off due to loop detection and shutoff functions/storm controls/
BPDU guard
: Transmitting and receiving just the administration packets
: No devices are connected.
: Slave switch
Port LED
13