Figure 231: Connecting Power To The Wye 3-Phase Ac Power Supply - Juniper T640 Hardware Manual

T640 Core Router Hardware Guide
372
Place the retaining screw into the metal 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 metal wiring compartment.
9.
Screw the retaining nut onto the AC power cord to secure it to the metal wiring
10.
compartment.
Connect the AC power cord wires to ground and the AC terminal block on the
11.
three-phase wye AC power supply
terminals or grounding point screws, insert each wire into the grounding point or input
terminal, and tighten the screw.
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.
Insert the wire labeled
a.
Insert the wire into the
L1
b.
Insert the wire labeled
c.
Insert the wire labeled
d.
Insert the wire labeled
e.
Figure 231: Connecting Power to the Wye 3–Phase AC Power Supply
Verify that the power cord wire connections are correct.
12.
Using a number 2 Phillips (+) screwdriver, tighten the two captive screws on the metal
13.
AC wiring compartment.
Place the AC power cord into the plastic tie located on the right side of the power
14.
supply, and fasten the plastic tie.
Verify that the AC power cord is not touching or blocking access to router components,
15.
and that it does not drape where people could trip on it.
Remove the ESD grounding strap from the ESD points on the chassis. Connect the
16.
strap to an approved site ESD grounding point. See the instructions for your site.
(Figure 231 on page
GND into the grounding point labeled
input terminal.
L1
into the input terminal.
L2 L2
into the input terminal.
L3 L3
into the input terminal
N N
L1 L2 L3 N
372). Loosen each of the input
GND .
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