Description; Mx2010 Dc Power Distribution Module Description; Figure 43: Seven Feed Single Phase Ac Power Distribution Module - Juniper MX2020 Hardware Manual

MX2020 3D Universal Edge Router Hardware Guide
MX2010 Seven-Feed Single Phase AC Power Distribution Module Description
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MX2010 DC Power Distribution Module Description

90
Each single-phase seven-feed AC PDM weighs approximately 12 lb (5.44 kg). The front
of the PDM has seven type C21 power cord connections for connecting single-phase AC
power. Figure 37 on page 86
Figure 43 on page 90 shows the single-phase seven-feed AC PDM.
shows the single-phase seven-feed AC PDM.

Figure 43: Seven Feed Single Phase AC Power Distribution Module

MX2020 Power Subsystem Description on page 83
Maintaining the MX2020 Power Supply Modules on page 386
Troubleshooting the MX2020 Power Subsystem on page 541
MX2020 AC Power Requirements on page 147
MX2020 AC Power Subsystem Electrical Specifications on page 158
MX2020 AC Power Cord Specifications on page 154
In the DC power configuration, the router contains up to two DC PDMs located at the rear
of the chassis in slots
PDM0/Input0
one PDM is required per system (two PDMs per MX2010 chassis) for nonredundant power.
The DC PDMs provides power interface to nine PSMs.
Four PDMs provide full redundancy.
NOTE: Power backplane distributes regulated 52 VDC to all boards supplied
by that system.
Each DC PDM has nine DC inputs (–48 VDC and return terminals for each input) (see
Figure 44 on page 91). Select 60 A or 80 A input feed capacity on the DC PDM by setting
the switch to the rated amperage of DC power input feeds.
NOTE: This switch applies to all inputs of this PDM. Selecting 60 A reduces
the available power output capacity of the PSMs supplied by this PDM.
shows the single-phase seven-feed AC PDM.
and (bottom to top). A minimum of
PDM1/Input1
Figure 43 on page 90
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