Mx240 Dc Power Supply Leds - Juniper MX240 Hardware Manual

NOTE: Do not set the input mode switch if the power supply is installed in the chassis. If the
power supply is already installed, you must remove it before setting the input mode switch.
Table 17 on page 57 shows the components that are powered by each DC power supply slot. The
specifications apply to normal capacity and high-capacity power supplies.
Table 17: Power Supply Redundancy and Power Distribution
DC Power Supply Slot
PEM0
PEM2
SEE ALSO
Connecting Power to a DC-Powered MX240 Router with Normal-Capacity Power Supplies | 248
MX240 Chassis Grounding Specifications | 61

MX240 DC Power Supply LEDs

Each DC power supply faceplate contains three LEDs that indicate the status of the power supply (see
Table 18 on page 57). The power supply status is also reflected in two LEDs on the craft interface (see
"MX240 Component LEDs on the Craft Interface" on page
the red alarm LED on the craft interface.
NOTE: An SCB must be present for the PWR OK LED to go on.
Table 18: DC Power Supply LEDs
Label Color
PWR OK Green
Power Supply Provides Power to the Following Components
Fan tray, DPC slots 0 and 1, and SCB slots 0 and 1
Fan tray, DPC slots 0 and 1, and SCB slots 0 and 1
State Description
Off Power supply is not functioning normally. Check the INPUT OK LED for
more information.
40).In addition, a power supply failure triggers
57