Juniper EX8208 Complete Hardware Manual page 232

Complete Hardware Guide for EX8208 Ethernet Switches
206
Replacement power supply or a cover panel for the power supply slot
CAUTION: Do not leave the power supply slot empty for a long time while
the switch is operational. Either replace the power supply 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 207):
Attach the electrostatic discharge (ESD) grounding strap to your bare wrist, and
1.
connect the strap to the ESD point on the chassis.
Flip the switch next to the appliance inlet on the power supply to the Standby
2. Enable
position.
Disconnect power from the switch by performing one of the two following tasks:
3.
If the AC power source outlet has a power switch, set it to the OFF position.
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.
Remove the power cord from the AC appliance inlet on the AC power supply faceplate.
4.
Turn the adjustment nut of the power cord retainer counterclockwise till you can see
5.
the power cord. Pull the power cord from the slot in the adjustment nut.
Squeeze the two sides of the power cord retainer clip, and pull the L-shaped ends of
6.
the clip from the holes on each side of the AC appliance inlet to completely remove
the power retainer clip.
Unscrew the captive screw counterclockwise using the Phillips (+) screwdriver, number
7.
1.
Pull the captive screw away from the faceplate of the power supply to release the
8.
latch.
Pull the handle away from the faceplate of the power supply until it is perpendicular
9.
to the faceplate.
Taking care not to touch power supply components, pins, leads, or solder connections,
10.
place one hand under the power supply to support it. Grasp the power supply handle
with your other hand and pull the power supply completely out of the chassis.
If you are not replacing the power supply, install the cover panel over the slot, using
11.
the Phillips (+) screwdriver to tighten the screw on the side of the cover panel.
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