Juniper MX2020 Hardware Manual page 285

Copyright © 2015, Juniper Networks, Inc.
Verify that the correct three-phase wye PDMs are installed and secured in the chassis
5.
before connecting power cables.
NOTE: The power cables must be uninstalled and removed from the
three-phase wye PDM before removal of the PDM from the chassis.
Using a number 2 Phillips (+) screwdriver, unscrew the four captive screws located
6.
on the either side of the metal AC wiring compartment (four screws total on each
PDM).
Remove the metal cover of the metal AC wiring compartment.
7.
Unscrew the retaining nut from the AC power cord.
8.
Put the wires of the AC power cord through the hole of the retaining nut and rubber
9.
grommet.
Put the wires of the AC power cord through the hole of the metal compartment.
10.
Connect the wires to the AC terminal block on the three-phase wye AC PDM (see
11.
Figure 119 on page 254). Loosen the input terminal or grounding point screw, insert each
wire into the grounding point or input terminal, and tighten the screw (see
Table 79 on page 255 for approved AC 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
b. Insert the wire labeled
c. Insert the wire labeled
d. Insert the wire labeled
e. Insert the wire labeled
Chapter 19: Connecting the Router to Power
into the input terminal labeled
L1
into the input terminal labeled
L2
into the input terminal labeled
L3
into the input terminal labeled
N
.
GND
.
A1
.
B1
.
C1
.
N1
253