Installing An Mx2020 Three-Phase Delta Ac Power Cord - Juniper MX2020 Hardware Manual

MX2020 3D Universal Edge Router Hardware Guide
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Loosen the plastic cable tie fastening the AC power cord to the PDM.
10.
Loosen and remove the retaining nut from the AC power cord.
11.
Pull the AC power cord out of the metal wiring compartment.
12.
Carefully move the AC power cable out of the way.
13.
Disconnect the AC power cord from the AC PDM.
14.

Installing an MX2020 Three-Phase Delta AC Power Cord

To install a three-phase delta AC power cord:
Switch off the customer site circuit breakers to the PDM being removed. Make sure
1.
that the voltage across the AC power source cord is 0 V and that there is no chance
that the cord might become active during the installation process.
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
2.
the strap to one of the ESD points on the chassis.
Switch the power switches on all the PSM faceplates to the off (
3.
PSMs that are powered only from this PDM.
NOTE: After powering off a PSM, wait at least 60 seconds before turning
it back on.
Using a number 2 Phillips (+) screwdriver, loosen the four screws on the cover of the
4.
metal wiring compartment that protects the AC terminal block.
Remove the cover of the metal AC wiring compartment.
5.
Unscrew the retaining nut from the AC power cord.
6.
Place the retaining nut inside the metal wiring compartment.
7.
Put the wires of the AC power cord through the hole of the metal wiring compartment.
8.
Screw the retaining nut onto the AC power cord to secure it to the metal wiring
9.
compartment.
Insert the wires to the AC terminal block on the three-phase delta AC PDM (see
10.
131 on page 287). Loosen each of the input terminal or grounding point screws, and
insert the wire into the grounding point or input terminal.
To insert wires into the terminal block that serves six PSMs:
a. Insert the grounding wire into the grounding point labeled
b. Insert the wire into the input terminal labeled
c. Insert the wire into the input terminal labeled
d. Insert the wire into the input terminal labeled
) position for any
O
GND .
.
A1
B1 .
.
C1
Copyright © 2013, Juniper Networks, Inc.
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