Table 35: Mx2020 Dc Power Supply Module Leds - Juniper MX2020 Hardware Manual

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Copyright © 2015, Juniper Networks, Inc.
The primary input of the PSM is a dual redundant feed,
active during operation, but both feeds may or may not be providing current. In addition,
a PSM failure triggers the alarm LED on the craft interface.

Table 35: MX2020 DC Power Supply Module LEDs

Label Color
PWR OK Green
Yellow
–
FAULT Red
–
Green
INP0
Yellow
–
Green
INP1
Yellow
–
MX2020 Component LEDs on the Craft Interface on page 39
MX2020 Power Subsystem Description on page 83
MX2020 DC Power Supply Module Description on page 96
MX2020 DC Power Subsystem Electrical Specifications on page 179
State Description
On PSM is functioning normally with no alarms.
On PSM controller is functioning normally.
Off PSM is not functioning normally or the PSM controller
is off.
On PSM is not functioning normally or the DC input
voltage of one or more feeds is out of range.
Off PSM is functioning normally or both the DIP switches
are set to off.
On DC input is within required voltage range and the DIP
switch is set to on.
On DC input is detected but voltage is out of range.
Off DC input to the PSM is not present.
On DC input is within required voltage range and the DIP
switch is set to on.
On DC input is detected but voltage is out of range.
Off DC input to the PSM is not present.
Chapter 9: Power Subsystem
and . Both feeds are
INP0 INP1
99