Juniper MX2010, Hardware Manual

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Maintaining the Power Supply Modules on the MX2000 Line of Routers | 666
Troubleshooting the MX2000 Router Power System | 320
MX2010 Power Midplane Description
The MX2010 power system consists of a power midplane (PMP). This midplane is used to connect power
from the PDM feeds (AC or DC) to the input of the PSMs (AC or DC) as well as the output from the PSMs
to the FRUs (MPCs, CB-REs, SFBs, and fan trays). The power midplane plugs into the signal backplane.
The PSMs and PDMs get plugged into the power midplane.
RELATED DOCUMENTATION
MX2010 Router Overview | 3
MX2010 Chassis Description | 7
MX2010 Modular Port Concentrator Description | 70
MX2000 Switch Fabric Board (SFB) Overview | 66
MX2000 Host Subsystem CB-RE Description | 51
MX2010 Modular Interface Card Description | 79
MX2010 Power System Description | 95
MX2010 Backplane Description | 13
MX2000 Three-Phase Delta AC Power Distribution Module Description
Each three-phase delta AC power distribution module (PDM) weighs approximately 12 lb (5.44 kg). A metal
wiring compartment contains two AC terminal blocks and ground labeled GND. One AC terminal block
consists of three input terminals that serves six power supply modules (PSMs) and the second terminal
block serves three PSMs. The terminal block on the left is labeled A1, B1, and C1 (bottom to top). The
second terminal block on the right is labeled A2, B2, and C2 (bottom to top). The PDMs are located at the
rear of the chassis in slots PDM0/Input0 through PDM1/Input1, (bottom to top). LEDs provide the status
of the PDM. Figure 32 on page 101 shows the three-phase delta AC PDM.
NOTE: The three-phase delta AC PDM terminal blocks will be flipped depending on which slot
the PDM gets plugged into.
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