Juniper T640 Hardware Manual page 442

T640 Core Router Hardware Guide
408
Insert the wires to the AC terminal block on the three-phase delta AC power supply
10.
(Figure 217 on page 409). Loosen each of the input terminal or grounding point screws,
and insert the wire into the grounding point or input terminal.
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.
Verify that the power cord wire connections are correct.
11.
Using a number 2 Phillips (+) screwdriver, tighten the two captive screws on the metal
12.
AC wiring compartment.
Verify that the AC power cord is not touching or blocking access to router components,
13.
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
14.
strap to an approved site ESD grounding point. See the instructions for your site.
Connect the AC power cord plug to the power source.
15.
Switch on the customer site circuit breakers to provide voltage to the AC power cord.
16.
Remove the ESD grounding strap from the approved site ESD grounding point. See
17.
the instructions for your site. Reconnect the strap to one of the ESD points on the
chassis.
Verify that the AC OK LED on the power supply faceplate is lit steadily, indicating that
18.
the AC terminal block is receiving power.
GND into the grounding point labeled
L1 into the L1 input terminal
L2 into the L2 input terminal.
LC3 into the LC3 input terminal.
GND .
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