2
6
Keysight PXIe Chassis Family Startup Guide
LED
Off
On continuously
Flashing
All three LEDs
on for 10
seconds and off
for 1 second
See the
Keysight
PXIe Chassis
Family Service
for details.
Guide
The 3.3V, 5V, 12V, and -12V plus
5Vaux limits can be individually
changed for each supply using the
SFP and programmatically
changing the limits
. The limits, if
changed, are reset to 5% at the
next chassis power cycle.
If the power supply condition
causing the flashing to occur is
no longer
present, the Power
LED will return to on
continuously, i.e. the flashing
state is not latched.
Fan LED
(green)
Typically
indicates that the
chassis is turned
off.
This could also
indicate a failed
LED or a failure of
the LED drive
circuitry.
See the
Keysight
PXIe Chassis
Family Service
for details.
Guide
Indicates that all three fans are
operating above 1200 RPM, the
factory default
lower
limit.
The fan speed limit can be changed
using the SFP or programmatically.
The limit, if
changed, is reset back
to 1200 RPM at the next chassis
power cycle.
Indicates that one or more of
the three fans are operating
below the limit, either the 1200
RPM factory default limit or, if
changed, the user set limit.
If the fan speed condition
causing the flashing to occur is
no longer present, the Fan LED
will return to on continuously, i.
e. the flashing state is not
latched.
Temp
(Temperature)
LED (amber)
To avoid this
amber LED being
interpreted as
indicating a
temperature
problem in the on
state, this LED is
off if the chassis
temperatures are
OK. To allow you
to validate that
this LED is
working, the LED
is turned on for
the first three
seconds after the
chassis is
powered up
This LED is never on continuously. It
will either be off if the temperatures
reported by the air flow exit
temperature sensors are all below
the limit (see left column), or it will be
flashing if one or more of the
temperature sensors are reporting a
temperature above the limit (see
right column).
Indicates that at least one of the
air flow exit temperature
sensors is reporting a
temperature above the limit,
either the 70°C factory default
limit or, if changed, the user set
limit.The limit, if changed, is
reset back to 70°C at the next
chassis power cycle.
If the temperature condition
causing the flashing to occur is
no longer present, the
Temperature LED will turn off,
indicating that the chassis
temperatures are OK.