3Com 3C16951 - Manual (Page 29)

The Power-up Sequence 29
The Power-up
Sequence The following sections describe how to get your Switch 1100
powered-up and ready for operation.
Connecting a
Redundant Power
System
You can connect a SuperStack II Advanced Redundant Power System
(part number 3C16071) to the Switch. This unit, which is also known as
an RPS, is designed to maintain the power to your Switch if a power
supply failure occurs.
If your Switch has no Expansion Module installed, or has a Matrix Module
or 100BASE-FX Module installed, the RPS unit requires one 60W Power
Module (part number 3C16072).
If your Switch has another Expansion Module installed, the RPS unit
requires one 100W Power Module (part number 3C16073).
CAUTION: The Switch can only use a SuperStack II Advanced
Redundant Power System output.
Powering-up the
Switch 1100
Use the following sequence of steps to power-up the Switch.
CAUTION: The Switch has no ON/OFF switch; the only method of
connecting or disconnecting main power is by connecting or
disconnecting the power cord.
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 12 seconds.
Checking for Correct
Operation
During the Power On Self Test, all ports on the Switch are disabled and
the LEDs light in the following sequence:
■
All unit LEDs light
■
Module LEDs light
■
Port Status LEDs light in a rapid cycle
When the POST has completed, check the Power/Self Test LED to check
that your Switch is operating correctly.
Table 4 shows possible colors for
the LED.
16950ua.bk Page 29 Thursday, April 29, 1999 1:28 PM