Juniper MX2020 Hardware Manual page 321

9. Insert the wires of the AC power cord through the hole of the retaining nut and rubber grommet.
10. Insert the wires of the AC power cord through the hole of the metal compartment.
11. Connect the wires to the AC terminal block on the three-phase wye AC PDM (see
Figure 128 on page 302). Loosen the input terminal or grounding point screw, insert each wire into the
grounding point or input terminal, and tighten the screw (see
wire gauge).
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.
e. Insert the wire labeled N into the input terminal labeled N1.
Table 87 on page 303 for approved AC
301