Juniper EX4500 Hardware Manual page 197

a. If you have not already done so, attach the ESD grounding strap to your bare wrist, and connect
the strap to the ESD point on the lower right front of the chassis—or hold the component in its
antistatic bag in one hand and touch the exposed, bare metal of the switch with the other hand.
b. Taking care not to touch power supply pins, leads, or solder connections, remove the replacement
power supply from its antistatic bag.
c. Using both hands, place the replacement power supply in the empty power supply slot in the switch
and slide it in until you hear a distinct click sound, indicating that the power supply is fully seated
in the chassis.
Figure 55: Sliding a Replacement Power Supply into the EX4500 Switch
7. To connect AC power to the replacement power supply (see
a. Ensure that you have the power cord retainer clip and the power cord from the old power supply
you removed in Step 4.
b. Squeeze the sides of the retainer clip, and insert the L-shaped ends into the holes in the bracket on
either side of the appliance inlet on the replacement power supply.
c. Insert the socket end of the power cord into the AC appliance inlet on the replacement power
supply.
d. Push the retainer clip toward the cord until the cord slides into the slot on the adjustment nut.
e. Turn the adjustment nut clockwise until it is tight against the base of the coupler and the slot in the
nut is turned 90º from the top of the switch.
f. If the AC power source outlet you are using has an on/off switch, ensure that it is set to the OFF
(0) position.
g. Gently insert the plug end of the power cord plug into the AC power source outlet, and set the
on/off switch on the outlet (if any) to the ON (|) position
Figure 56 on page 198):
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