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Replacement power supply or a cover panel for the power supply slot
CAUTION: Do not leave the powersupply slot empty for a long time while the switch
is operational. Either replace the powersupply promptly or install a cover panel over
the empty slot.
To remove an AC power supply from an EX8200 switch (see Figure 81 on page 209):
1. Attach the electrostatic discharge (ESD) grounding strap to your bare wrist, and
connect the strap to the ESD point on the chassis.
2. FliptheEnableswitchnexttotheapplianceinletonthepowersupplytotheStandby
position.
3. Disconnect power from the switch by performing one of the two following tasks:
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If the AC power source outlet has a power switch, set it to the OFF position.
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If the AC power source outlet does not have a power switch, gently pull the male
end of the power cord connected to the power source outlet out of the outlet.
4. Remove the power cord from the AC appliance inlet on the AC power supply
faceplate.
5. Turn the adjustment nut of the power cord retainer counterclockwise till you can
see the power cord. Pull the power cord from the slot in the adjustment nut.
6. Squeeze the two sides of the power cord retainer clip, and pull the L-shaped ends
oftheclipfromtheholesoneachsideoftheACapplianceinlettocompletelyremove
the power retainer clip.
7. Unscrew the captive screw counterclockwise using the Phillips (+) screwdriver,
number 1.
8. Pull the captive screw away from the faceplate of the power supply to release the
latch.
9. Pull the handleawayfromthe faceplate of the powersupplyuntil it is perpendicular
to the faceplate.
10. Takingcarenottotouchpowersupplycomponents,pins,leads,orsolderconnections,
placeonehand underthepowersupplytosupport it.Graspthe powersupplyhandle
with your other hand and pull the power supply completely out of the chassis.
11. If you are not replacing the power supply, install the cover panel over the slot, using
the Phillips (+) screwdriver to tighten the screw on the side of the cover panel.
Copyright ©2010,Juniper Networks,Inc.208
CompleteHardwareGuide forEX8208 EthernetSwitches