Juniper ACX5048 Hardware Manual page 119

Figure 40: Securing Ring Lugs to the Terminals on the ACX5000 DC Power Supply
8. Replace the terminal block cover.
9. Close the input circuit breaker.
NOTE: The switch powers on as soon as power is provided to the power supply. There is no
power switch on the device.
10. Verify that the IN and OUT LEDs on the power supply are lit green and are on steadily.
CAUTION:
successfully boot the Junos OS software. In case of a system reboot failure, you
need to power cycle the switch. To check the current FPGA version, issue the show
chassis firmware command.
SEE ALSO
DC Power Supply for an ACX5000 Router | 69
DC Power Supply LEDs on an ACX5000 Router | 72
A system reboot with Routing Engine FPGA version 7.1 might not
119