Figure 219: Connecting Power To A Three-Phase Delta Ac Power Supply - Juniper T640 Hardware Manual

Copyright © 2013, Juniper Networks, Inc.
Connect the wires to the AC terminal block on the three-phase delta AC power supply
13.
(Figure 219 on page 359). Loosen each of the input terminal or grounding point screws,
insert the 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 labeled
b.
Insert the wire labeled
c.
Insert the wire labeled
d.

Figure 219: Connecting Power to a Three-Phase Delta AC Power Supply

L1 L2 L3
Verify that the power cord wire connections are correct.
14.
Using a number 2 Phillips (+) screwdriver, tighten the two captive screws on the metal
15.
AC wiring compartment.
Verify that the AC power cord is not touching or blocking access to router components,
16.
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
17.
strap to an approved site ESD grounding point. See the instructions for your site.
Chapter 17: Replacing T640 Router Hardware Components
GND into the grounding point labeled
into the input terminal
L1 L1
L2 into the L2 input terminal.
into the input terminal.
LC3 LC3
L1 L2 L3
GND .
359