Juniper MX2010 Hardware Manual page 436

To insert wires into the terminal block that serves six PSMs:
a. Insert the grounding wire into the grounding point labeled GND.
b. Insert the wire labeled L1 into the input terminal labeled A1.
c. Insert the wire labeled L2 into the input terminal labeled B1.
d. Insert the wire labeled L3 into the input terminal labeled C1.
e. Insert the wire labeled N into the input terminal labeled N1.
Figure 201: Connecting Power to a Three-Phase Wye AC Power Distribution Module
NOTE: The three-phase wye AC PDM terminal blocks will be flipped depending on which
slot the PDM gets plugged into.
NOTE: The color of each AC power wire might vary. The MX2000 chassis is not sensitive
to phase rotation sequence—either CW or CCW will operate correctly.
420