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x If the fans are working properly, the “Fan” LEDs will remain unlit. If either or both of
the fans stop or fail, the corresponding “Fan” LED(s) will be lit red.
LED Indicators
Status
LED Color
Solid Blinking
Power
Green The device is powered on N/A
Diagnostic
Green Self diagnostic successful
Performing self
diagnostic (after power
on)
FAN1
Red Left cooling fan failed N/A
Cooling
Fans
FAN2
Red Right cooling fan failed N/A
Green 100Mbps Fast Ethernet connection speed N/A
100M
(Port 1-24)
Off 10Mbps connection speed N/A
10/100/1000Mbps Copper Gigabit Port (Optional Module)
Top LED
Orange
100Mbps Fast Ethernet connection speed
(with Middle LED off)
N/A
Middle LED
Green
10Mbps Ethernet connection.
(with Top LED off)
N/A
Bottom LED
Green N/A
TX/RX activity or
collision
Top + Middle
LEDs
Orange+
Green
1000Mbps Gigabit connection speed N/A
10