Table 56: DC Power Supply LEDs (continued)
DescriptionStateColorLabel
Power supply is functioning normally.On
The main output voltage is out of range (lower limit: 37.5 V to 39.5 V; upper limit:
72.5 V to 76 V).
OnYellow
DC power supply circuit breaker is turned off.OffGreenBRKR ON
DC power input is present and the DC power supply circuit breaker is turned on.On
DC input to the PEM is not present.OffGreenINPUT OK
DC input is present and is connected in correct polarity.On
DC input is present, but not in valid operating range or connected in reverse polarity.OnYellow
Related
Documentation
• Power Supply LEDs on the MX240 Craft Interface on page 15
• MX240 DC Power Supply Description on page 92
• Connecting Power to a DC-Powered MX240 Router with Normal-Capacity Power
Supplies on page 201
• MX240 Chassis Grounding Specifications on page 157
• DC Power Supply Electrical Specifications for the MX240 Router on page 143
95Copyright © 2017, Juniper Networks, Inc.
Chapter 7: Power System Components and Descriptions
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