Figure 227: Connecting Power To The Three-Phase Wye Ac Power Supply - Juniper T640 Hardware Manual

T640 Core Router Hardware Guide
368
Unscrew the retaining nut from the AC power cord.
10.
Place the retaining nut inside the metal wiring compartment.
11.
Put the wires of the AC power cord through the hole of the metal wiring compartment.
12.
Screw the retaining nut onto the AC power cord to secure it to the metal wiring
13.
compartment.
Connect the AC power cord wires to ground and the AC terminal block on the
14.
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
b. L1
Insert the wire labeled
c.
Insert the wire labeled
d.
Insert the wire labeled
e.
Figure 227: Connecting Power to the Three–Phase Wye AC Power Supply
Verify that the power cord wire connections are correct.
15.
Using a number 2 Phillips (+) screwdriver, tighten the two captive screws on the metal
16.
AC wiring compartment.
Place the AC power cord into the plastic tie located on the right side of the power
17.
supply, and fasten the plastic tie.
Verify that the AC power cord is not touching or blocking access to router components,
18.
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
19.
strap to an approved site ESD grounding point. See the instructions for your site.
Connect the AC power cord to the AC power source.
20.
(Figure 227 on page
GND into the grounding point labeled
input terminal.
L1
L2 into the L2 input terminal.
into the input terminal.
L3 L3
N into the N input terminal
L1 L2 L3 N
368). Loosen each of the input
GND .
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