Table 40: Power Supply Leds - Juniper G10 CMTS Hardware Manual

Power On the G10 CMTS
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Table 40: Power Supply LEDs

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POWER FAULT
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Green Not illuminated
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Green Red
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Green Red
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• Not illuminated Red
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Not illuminated Not illuminated
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124 JUNOSg 3.0 G10 CMTS Hardware Guide
Potential Meaning
Normal operation
Over-temperature
Over-current or over power limit condition
Voltage input failure
! Power supply not installed correctly.
! No input power and no DC output from
other power supplies to illuminate FAULT
LED.
If the POWER LED is not illuminated, the FAULT LED can be
illuminated red only if the DC output voltage is present
from other power supplies.
4. Replace the power supply faceplate by aligning its four ball studs with the four power
supply faceplate clips and pressing the faceplate towards the chassis until it snaps into
place.
5. Ensure that the fan tray LEDs (two in front, one in rear) are not illuminated (see Figure 4
on page 11 and Figure 7 on page 14 for the location of these LEDs). If any fan tray LED is
illuminated red, one or more fans in that tray has failed and you must replace the entire
tray (see "Replace a Fan Tray" on page 162).
To minimize the risk of damage to the G10 CMTS, you
should replace a failed fan tray as soon as possible to
ensure that proper air ventilation occurs throughout the
chassis.
Action
None
! Check that fan trays are operational (see step 5
on page 124).
! Ensure all empty module slots and power supply
bays contain air management modules, panels,
and filler panels.
! Ensure air intakes and exhaust are not blocked.
Ensure that the correct number of power supplies are
installed to support the CMTS configuration.
Ensure that the external power sources are operating
within specification.
! Power down the G10 CMTS and reinstall the
power supply as described on "Install Power
Supplies" on page 101. If power supply
redundancy is implemented, you can replace a
power supply without powering down the
system.
! Ensure that the external power sources are
switched on.