Dc Power Supply Module Leds - Juniper MX204 Hardware Manual

Table 9: AC Power Supply Module LEDs (continued)
Label Color
DC OK Unlit
Green
! (Fault) Amber
NOTE: If the AC OK LED and the DC OK LED are unlit, either the AC power cord is not installed
properly or the power supply fuse has failed. If the AC OK LED is lit and the DC OK LED is unlit,
the AC power supply is installed properly, but the power supply has an internal failure.

DC Power Supply Module LEDs

Figure 13 on page 37 shows the DC power supply modules status LEDs.
Figure 13: DC Power Suppy Module LEDs
1 2 3
1 Input LED
—
2 Output LED
—
State Description
Off Power supply output is off.
On steadily The power supply is sending out power correctly.
On steadily An error has been detected in the power supply. Replace the
power supply as soon as possible. To maintain proper airflow
through the chassis, leave the power supply installed in the
chassis until you are ready to replace it.
3 Fault LED
—
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