3com Switch 4500 PWR 26-Port Manual De Usuario
32
C
HAPTER
2: I
NSTALLING
THE
S
WITCH
The Power-up
Sequence
Sequence
The following sections describe how to get your Switch 4500
powered-up and ready for operation.
powered-up and ready for operation.
Powering-up the
Switch 4500
Use the following sequence of steps to power-up the Switch.
1 Plug the power cord into the power socket at the rear of the Switch.
2 Plug the other end of the power cord into your power outlet.
The Switch powers-up and runs through its Power On Self Test (POST),
which takes approximately one minute.
which takes approximately one minute.
Checking for Correct
Operation of LEDs
During the Power On Self Test, all ports on the Switch are disabled and
the LEDs light. The PWR LED will flash green during the POST.
the LEDs light. The PWR LED will flash green during the POST.
When the POST has completed, check the PWR LED to make sure that
your Switch is operating correctly. Table 10 shows possible colors for the
LED.
your Switch is operating correctly. Table 10 shows possible colors for the
LED.
Table 10 Unit Status Colors
If there is evidence of a problem, see “Solving Problems Indicated by
LEDs” on page 64 for a list of suggested solutions.
LEDs” on page 64 for a list of suggested solutions.
CAUTION: The Switch has no ON/OFF switch; the only method of
connecting or disconnecting mains power is by connecting or
disconnecting the power cord.
connecting or disconnecting mains power is by connecting or
disconnecting the power cord.
WARNING: The Switch 4500 PWR supports Power over Ethernet on
10/100 ports only. These ports should only be used for Ethernet wiring
within the same building.
10/100 ports only. These ports should only be used for Ethernet wiring
within the same building.
Color
State
Green
The Switch is powered-up and operating normally.
Green flashing
Self Test (POST) or Software Download is in progress
Red
The Switch has failed its Power On Self Test (POST).
Off
The Switch is not receiving power.