Installation Guide

The LEDs are located on the end of the power supply unit, arranged vertically to the left of the terminal
block.
Table 53: 750 W AC and DC Power Supplies LED Status Indications
Label and
Color
Description State Meaning
!
Amber
Fault
Indicator
On
(Solid)
PSU fault
O No PSU fault
DC
(Green)
DC output
Good
On
(solid)
DC output OK
O or
Blinking
DC output fail
AC
(Green)
AC input
Good
On AC input OK
O AC input fail
The following tables describe the meanings of the LEDs on the 750 W DC power supply (part number
XN-DCPWR-750W-F or XN-DCPWR-750W-R).
The LEDs are located on the end of the power supply unit, arranged vertically to the left of the terminal
block.
Table 54: 750 W DC Power Supply LED Status Indications
Label and
Color
Description State Meaning
!
Amber
Fault
Indicator
On
(Solid)
PSU fault
O No PSU fault
OUT OK
(Green)
DC output
Good
On
(solid)
DC output OK
O or
Blinking
DC output fail
IN OK
(Green)
DC input
Good "IN OK"
On DC input OK
O DC input fail
Summit 770 W AC Power Supplies
Summit 770 W AC power supplies are available in the following models:
• 770 W AC PSU-FB (Model 10960)—AC power supply with front-to-back ventilation airflow
• 770 W AC PSU-BF (Model 10961)—AC power supply with back-to-front ventilation airflow
These power supplies are compatible with X590, X690 and X870 switches that have the same airflow
direction as the power supply.
Summit 770 W AC Power Supplies
Power Supplies for Use with Your Switch
136 ExtremeSwitching Hardware Installation Guide