Mx2020 Dc Power Distribution Module Description; Table 32: Mx2020 Ac Power Supply Module Leds - Juniper MX2020 Hardware Manual

MX2020 3D Universal Edge Router Hardware Guide
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MX2020 DC Power Distribution Module Description

94

Table 32: MX2020 AC Power Supply Module LEDs

Label Color
Green
PWR OK
Yellow
—
Red
FAULT
—
Green
INP0
Yellow
—
Green
INP1
Yellow
—
MX2020 Component LEDs on the Craft Interface on page 39
MX2020 Power Subsystem Description on page 83
MX2020 AC Power Supply Module Description on page 158
MX2020 AC Power Subsystem Electrical Specifications on page 158
In the DC power configuration, the router contains up to four DC PDMs located at the
rear of the chassis in slots
PDM0/Input0
of one PDM is required per subsystem (two PDMs per MX2020 chassis) for nonredundant
power. The DC PDMs provides power interface to nine PSMs.
Four PDMs provide full redundancy.
NOTE: Power backplane distributes regulated 52VDC to all boards supplied
by that subsystem.
State Description
On Power is functioning normally with no alarms.
On PSM controller is functioning normally.
Off PSM is not functioning normally or the AC input
voltage is out of range.
On PSM is not functioning normally or the AC input
voltage is out of range.
Off PSM is functioning normally.
On AC input is within the required voltage range and the
DIP switch is set to on.
On AC input is out of the required voltage range.
Off AC input to the PSM is not present.
On AC input is within the required voltage range and the
DIP switch is set to on.
On AC input is out of the required voltage range.
Off AC input to the PSM is not present.
through
PDM3/Input1
(bottom to top). A minimum
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