3com 4005 Instruccion De Instalación
34
C
HAPTER
5: S
WITCH
4005 P
OWER
S
UPPLIES
7 Before you apply power to the Switch, consult the setup procedure in Chapter 1.
If you are performing the initial installation of a Switch 4005, 3Com recommends
that you install all modules and power supplies first, then power up the Switch.
This way, you can direct your full attention to the LEDs on the modules and power
supplies. If the Switch 4005 is powered up while you install components, you must
finish securing them before you can concentrate on their LEDs.
that you install all modules and power supplies first, then power up the Switch.
This way, you can direct your full attention to the LEDs on the modules and power
supplies. If the Switch 4005 is powered up while you install components, you must
finish securing them before you can concentrate on their LEDs.
8 If you are ready to apply power to the Switch, plug one end of the power cord into
the socket on the power supply and then plug the other end into the dedicated
electrical outlet.
electrical outlet.
If both the AC and DC LEDs are lighted, then the power supply is functioning
normally. If not, consult the section “Troubleshooting a Power Supply” in this
chapter.
normally. If not, consult the section “Troubleshooting a Power Supply” in this
chapter.
If you have one power supply installed, it will assume the full load of the chassis. If
you have two power supplies installed, they will share the chassis load.
you have two power supplies installed, they will share the chassis load.
Removing a Power
Supply
Supply
This section describes how to remove a 300-watt AC power supply from the
Switch 4005 chassis.
Switch 4005 chassis.
WARNING: Before you attempt to remove a power supply from the chassis, be
sure to disconnect the power cord from the electrical outlet and then from the
Switch 4005 power supply to avoid hazardous energy levels.
sure to disconnect the power cord from the electrical outlet and then from the
Switch 4005 power supply to avoid hazardous energy levels.
Before you begin, have ready a flathead screwdriver.
To remove a power supply, follow these steps:
1 Remove the power cord from the electrical outlet.
2 Remove the power cord from the AC input socket on the Switch 4005 power
supply.
3 Remove the Switch 4005 power supply:
a Using a flathead screwdriver, loosen the retainer screws that secure the power
b Grasp the handles on the power supply with both hands.
c Begin to pull the power supply straight out, ensuring that you do not damage
the connector and guide pins on the rear of the power supply or the connector
inside the chassis.
inside the chassis.
d Once the power supply is partially removed, put one hand beneath the power
supply to support it as you continue to remove it from the chassis.
CAUTION: To prevent damage to the guide pins and connectors, while you pull
the power supply straight out of the chassis, put one hand underneath the power
supply to support it.
the power supply straight out of the chassis, put one hand underneath the power
supply to support it.
4 If you are not going to install a replacement power supply in the empty slot, install
a blank faceplate over the empty slot to ensure proper cooling in the chassis.