Extreme 3802 Hardware Manual

Page of 336
 
Installing the Alpine 3808 and the Alpine 3804 DC Power Supply
Extreme Networks Consolidated Hardware Guide
149
Figure 66: DC power supply for the Alpine 3804 switch
CAUTION
When you insert 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 insert a power supply.
4
Use the central handle to guide the power supply into the bay while supporting the supply from the 
bottom with your other hand.
CAUTION
Do not slam the power supply into the backplane. This or other excessive force will cause damage 
and possibly require the return of the chassis.
5
Place both hands on each side of the power supply to slowly and evenly slide the power supply into 
the bay. During the last inch of insertion into the chassis, place one hand on the central handle to 
steady the power supply and use your other hand to gently push the ejector/injector lever towards 
the power supply to engage the power supply backplane connectors.
6
Secure the power supply by tightening the screw on the ejector/injector lever using a #2 Phillips 
screwdriver.
7
Slide the locking safety latch away from the “remove” position.
8
Leave the ESD strap permanently connected to the chassis so that it is always available when you 
need to handle ESD-sensitive components.
To install an additional power supply, repeat steps 1 through 7.
Attaching the Cabling and Supplying Power
After you install the power supply into the chassis, you need to attach the cabling so you can supply 
power to chassis. To attach the cable to the lugs, and then to the DC power supply, perform the 
following steps:
38_DCPS4
45022
45022
SLIDE TO
REMOVE
ON
OFF
-48V
RTN
SERVICE
DC OK
DC OK
WHEN INST ALLED IN 3808 
THIS W
A Y UP
WHEN INSTALLED IN 3804 THIS WAY UP
Handle
Ejector/
injector
lever
Safety
latch
On/off
switch