Operation
56
SM - Indicates the subnet management functionality: on for active mode, blinking for
standby mode.
PS/FAN - Lights solid green, indicating that the 4036/2036 switch is properly powered
and the fan unit is functioning adequately.
6.
If any of these conditions is not met, refer to
Solving Startup Problems
(on page
58
) to
isolate and, if possible, resolve the problem.
8.2
4036/2036 Switch LED Indicators
The following table lists the LED indicators and their functions and descriptions of different
states.
Table 14: 4036/2036 Switch LED Indications
LED Name
Color
Location
Status
Functionality
PWR
Green
Front panel-
On each PSU
ON
PSU DC OK
OFF
PSU DC problem
Fan
Green
Front panel (fan drawer)
ON
All fans operational, Nominal temperature
OFF
None of the fans are working
BLINK
At least one fan problem or
high temperature
SM
Green
Front panel (fan drawer)
ON
SM is active
OFF
SM is not active
BLINK
SM is in standby mode
Pwr
Green
Front panel (fan drawer)
ON
System power ok
OFF
System power problem
Info
Green
Front panel (fan drawer)
OFF
The device does not require attention
BLINK
The device requires attention
Pwr/Fan
Green
Rear panel
ON
All fans operational, Nominal temperature,
PSUs OK
OFF
All fans are not working or power down
BLINK
At least one fan problem or
high temperature, One PSU problem
SM
Green
Rear panel
ON
SM is active
OFF
SM is not active
BLINK
SM is in standby mode
Pwr
Green
Rear panel
ON
System power ok
OFF
System power problem
Info
Green
Rear panel
OFF
The device does not require attention
BLINK
The device requires attention
