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4-4
C
HAPTER
4: S
YSTEM
P
OWER
U
P
System and Port Status LEDs
Figure 4-1
System and Port Status LEDs on the SuperStack II Switch 3900
Status
30x
36x
green
= enabled, link OK
flashing green
= disabled, link OK
off
= link fail
Power Fault
2
3
1
10 11 12
4
5
6
7
8
9
2
3
1
10 11 12
4
5
6
7
8
9
14 15 16 17
13
18 19 20 21
22 23 24
14 15 16 17
13
18 19 20 21
22 23 24
26 27 28 29
25
30 31 32 33
34 35 36
26 27 28 29
25
30 31 32 33
34 35 36
Pckt
Stat
Pckt
Stat
Pckt
Stat
Ethernet Port Status LEDs
Green = Associated port is active
Flashing Green = Port active but disabled
OFF = Port disabled
Fault
Solid or Blinking Yellow =
System failed at power up
Power
Green = System powered on
Ethernet Port Packet LEDs
Yellow = Port is passing data
Flashing Yellow = Port is passing data
OFF = No data
Super Stack II
Switch 3900