Juniper EX4500-40F-BF, Complete Hardware Manual

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c. Insert the female 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 male 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 63: Connecting the Replacement Power Supply Cord
g020851
Tighten
adjustment
nut.
Retainer
clip
Adjustment
nut
8.
To ensure that the replacement power supply is operating normally and both power
supplies are providing redundant power to the switch, verify that both power supply
LEDs (see
Figure 60 on page 180 ) are lit steadily green
9.
To replace the power supply in the bottom slot, go on to “Replacing the Power Supply
in the Bottom Slot” on page 182 .
Replacing the Power Supply in the Bottom Slot
To replace the power supply in the bottom slot of the switch:
1.
If you have not already done so, ensure that the EX4500 switch you are working on
is operating normally, with both power supplies turned on, by verifying that the LED
on each power supply is lit steadily green (see
Figure 60 on page 180 ).
2.
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
touch the exposed, bare metal of the switch to ground yourself before handling a
component.
3.
Remove power from the old power supply in the bottom slot (see Step 3 in “Replacing
the Power Supply in the Top Slot” on page 180 ).
4.
Remove the power cord from the old power supply in the bottom slot (see Step 4 in
“Replacing the Power Supply in the Top Slot” on page 180 ).
5.
Remove the bottom old power supply from the switch (see Step 5 in “Replacing the
Power Supply in the Top Slot” on page 180 ).
Copyright © 2015, Juniper Networks, Inc. 182
Complete Hardware Guide for EX4500 Ethernet Switches