Extreme Networks Alpine 3804 Installation Notes page 6

INS WHEN
Figure 4: Alpine 3808 DC power supply with cables attached
9 Replace the plexiglas cover.
10 Turn on the DC supply at both the wall breaker and at the power supply breaker.
11 Leave the ESD strap permanently connected to the chassis, so that it is always available
when you need to handle ESD-sensitive components.
Removing the Alpine 3808 Power Supply
To remove a DC power supply from the Alpine 3808 switch:
1 Attach the ESD strap that is provided to your wrist and connect the metal end to the ground
receptacle that is located on the top-right corner of the switch front panel.
2 Turn off the DC supply at both the source breaker and at the power supply breaker.
3 Remove the plexiglas cover that shields the power connection on the power supply.
4 Remove the DC power and ground cables from the power supply.
5 Slide the locking latch on the power supply in the direction marked "remove."
Caution: Ensure that the latch is in the "remove" position. You cannot remove the power
supply unless the latch is in the "remove" position.
6 Use a #2 Phillips screwdriver to unscrew the screw on the ejector/injector lever then pull the
ejector/injector lever towards you to disengage the power supply connections from the
backplane. Hold on to the central handle to steady the power supply.
Caution: When you remove a power supply, use one hand to support the power supply
from the bottom and the other hand to hold the central handle on the front of the power
supply. Do not use just the ejector/injector lever to remove a power supply.
7 Use one hand on the central handle to slowly pull the power supply towards you. Place
your other hand beneath the power supply to support it as you pull it out of the chassis.
Alpine DC Power Supply Installation Notes
45022
ON -48V
OFF RTN
45022
Removing the Alpine 3808 Power Supply
SLIDE TO
REMOVE
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