LED
Color
Indicates
Alarm
Red
The MCU 53x0 is booting or has developed a fault, for example:
n
temperature is outside normal limits
n
fan failure
n
battery failure of the internal clock
Refer to the web interface for more information about the problem (go to
Status > Health
)
Power
Blue
The MCU 53x0 is receiving power
Link
Green
Illuminated when the link between stacked MCU 53x0s is active
Net A
Green
Illuminated when there is activity on network Port A
Net B
Green
Illuminated when there is activity on network Port B
Rear panel LED behavior
The following table describes the behavior of the rear panel LEDs.
LED
Color
Indicates
Link
Green
Illuminated when the link between stacked MCU 53x0s is active
Net A
Green/Orange
Left LED illuminated green when the interface has established a link
Right LED illuminated orange when there is activity on the interface
Net B
Green/Orange
Left LED illuminated green when the interface has established a link
Right LED illuminated orange when there is activity on the interface
Table 2: MCU 53x0 rear panel LED behavior
Cisco TelePresence MCU 5300 Series Installation Guide
Page 4 of 14
General information
