Juniper MX2020 Hardware Manual page 317

NOTE: The terminal connections have either slotted screws or hex screws. Use a 1/4-in.
slotted screwdriver for the slotted screws. Use a 5/32-in. (4 mm) Allen wrench for the
5/16-in. hex screws.
To connect wires to 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.
Figure 127: Connecting Power to a Three-Phase Delta AC Power Distribution Module
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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