Juniper MX2020 Hardware Manual page 653

NOTE: After powering off a PSM, wait at least 60 seconds before turning it back on.
4. Using a number 2 Phillips (+) screwdriver, loosen the four screws on the cover of the metal wiring
compartment that protects the AC terminal block.
5. Remove the cover of the metal AC wiring compartment.
6. Unscrew the retaining nut from the AC power cord.
7. Place the retaining nut inside the metal wiring compartment.
8. Put the wires of the AC power cord through the hole of the retaining nut and rubber grommet.
9. Put the wires of the AC power cord through the hole of the metal wiring compartment.
10. Connect the wires to the AC terminal block on the three-phase delta AC PDM (see
Figure 287 on page 638). Loosen each of the input terminal or grounding point screws, and insert the
wire into the grounding point or input terminal, and tighten the screw (see
approved AC wire gauge).
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.
Table 103 on page 639 for
637