FEB LEDs on the M120 Craft Interface
Each FEB has two LEDs on the craft interface that indicate its status. The LEDs, labeled
0 through 5, are located on the lower right of the craft interface below the FEBS label.
Table 5 on page 15 describes the functions of the FEB LEDs.
Table 5: FEB LEDs on the M120 Craft Interface
DescriptionStateColorLabel
FEB is active.On steadilyGreenACTIVE
FEB is transitioning online/offline.Blinking
FEB is functioning normally.On steadilyGreenSTATUS
FEB is not functioning normally.On steadilyRed
FPC LEDs on the M120 Craft Interface
Each FPC slot has one LED that indicates its status. The FPC LEDs, labeled FPC0 through
FPC5, are located along the bottom of the craft interface. Table 6 on page 15 describes
the functions of the FPC LEDs.
Table 6: M120 FPC LEDs
DescriptionStateColorLabel
FPC has failed.On steadilyRedSTATUS
FPC is functioning normally.On steadilyGreen
FPC is transitioning online/offline.Blinking
Power Supply LEDs on the M120 Craft Interface
Each power supply has one LED on the craft interface that indicates its status. The LEDs,
labeled 0 and 1, are located on the lower left of the craft interface under the POWER
label. Table 7 on page 15 describes the functions of the power supply LEDs.
Table 7: Power Supply LEDs on the M120 Craft Interface
DescriptionStateColorLabel
Power supply has failed.On steadilyRedSTATUS
Power supply is functioning normally.On steadilyGreen
External Clocking Inputs LEDs on the M120 Craft Interface
The EXT CLOCK ports are labeled A and B.
15Copyright © 2018, Juniper Networks, Inc.
Chapter 3: Chassis Components and Descriptions
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