Supplies - Juniper T640 Hardware Manual

T640 Core Router Hardware Guide
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Connecting AC Power to a T640 Router with Three-Phase Wye AC Power Supplies
244
Using a number 2 Phillips (+) screwdriver, tighten the two captive screws on the metal
13.
AC wiring compartment.
Use the provided plastic cable tie to fasten the AC power cord to the power supply.
14.
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.
Repeat the procedure for the other three-phase delta AC power supply.
16.
T640 Three-Phase Delta and Wye AC Power Supply Description on page 106
Powering On an AC-Powered T640 Router on page 246
T640 AC Power Electrical Safety Guidelines on page 537
T640 AC Power Cord Specifications on page 139
T640 Preventing Electrostatic Discharge Damage on page 506
To connect an AC power cord:
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
1.
the strap to an approved site ESD grounding point. See the instructions for your site.
Switch off the customer site circuit breakers. Ensure that the voltage across the AC
2.
power source is 0 V and that there is no chance that the voltage might become active
during installation.
Detach the ESD grounding strap from the approved site ESD grounding point, and
3.
connect the strap to one of the ESD points on the chassis.
Switch the power switch on the power supply faceplate to the standby position.
4.
Using a number 2 Phillips (+) screwdriver, loosen the two captive screws on the metal
5.
AC wiring compartment.
Open the metal door of the metal AC 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.
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