Juniper MX2010 Hardware Manual page 601

Figure 308: Disconnecting the Power Cord from a Three-Phase Wye AC Power Distribution Module
To remove wires from the terminal block that serves three PSMs:
a. Remove the wire labeled N from the input terminal labeled N2.
b. Remove the wire labeled L3 from the input terminal labeled C2.
c. Remove the wire labeled L2 from the input terminal labeled B2.
d. Remove the wire labeled L1 from the input terminal labeled A2.
e. Remove the grounding wire from the grounding point labeled GND.
NOTE: The three-phase wye AC PDM terminal blocks will be flipped depending on which
slot the PDM gets plugged into.
10. Loosen the plastic cable tie fastening the AC power cord to the PDM.
11. Loosen and remove the retaining nut from the AC power cord.
12. Pull the AC power cord out of the metal wiring compartment.
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