Replacing The Power Supply - 3Com NETBuilder II Installing Instruction

Replacing The Extended chassis comes with one power supply. A second power supply can
the Power Supply be installed as a backup. To replace the original power supply in your chassis,
follow the steps in Figure 3-12 and Figure 3-13.
CAUTION: The following procedure is provided only for qualified service
personnel. There are no user serviceable parts inside the power supply.
WARNING: Do not open the power supply. It contains hazardous voltages.
There are no user-serviceable parts inside.
VORSICHT: Öffnen sie niemals das Netzteil. Hochspannung! Es sind keine zu
wartenden Teile enthalten.
AVERTISSEMENT: Ne pas ouvrir ce bloc d'alimentation. Tensions dangereuses
à l'intérieur. Ne contient aucune pièce que l'utilisateur puisse rèparer.
PELIGRO: No abra fuente de alimentación. Contiene alta tensión. No hay partes
para reemplazar adentro.
It is not necessary to remove the chassis if it is mounted in a rack.
CAUTION: Installing a new power supply with the power switch in the on
position can result in arcing at the connectors, which can cause damage to the
power supply or the chassis.
a Remove front
panel.
Make sure power
b
switch is off.
c Remove power cord.
Figure 3-12 Removing the Power Supply in the Extended Chassis
Maintenance and Repair
Spring-loaded
plunger
d Loosen captive
screw.
e Disengage plunger
while pulling power
supply out of chassis.
3-13
Detail