Juniper PTX3000 Hardware Manual page 68

9. Insert the DC connector in the optical ILA DC power supply.
10. Tighten the attached screws (top and bottom) on the DC power connector to apply a torque of 4.5
lb-in. (0.5 Nm). See Figure 25 on page
11. Repeat Step 4 through Step
WARNING:
or drape where people can trip on them.
12. Close the input circuit breaker.
NOTE: We recommend that the 48 VDC facility DC source be equipped with a circuit
protector rated at 10 A (–48 VDC) minimum, or as required by local code.
We recommend that the 60-VDC facility DC source be equipped with a circuit protector
rated at 5 A (–60 VDC) minimum, or as required by local code.
NOTE: The optical ILA powers on as soon you connect the power.
13. Verify that the status LEDs on each power supply are lit green.
If the DC IN OK or DC OUT OK is lit steadily red, remove power from the power supply, and replace
the power supply (see
the power supply until you have a replacement power supply ready: the power supplies or a blank panel
must be installed in the optical ILA to ensure proper airflow.
CAUTION:
minute of removal to prevent chassis overheating.
SEE ALSO
Optical ILA Power System | 31
67.
10 for each power supply you are connecting to power.
Ensure that the power cables do not block access to device components
"Removing a Power Supply from an Optical ILA" on page
Replace a failed power supply with a new power supply within one
95). Do not remove
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