3Com 3C17205 Getting Started Guide - Page 30

The Power-up Sequence, Powering-up the Switch 4400, Checking for Correct Operation of LEDs

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30 CHAPTER 2: INSTALLING THE SWITCH The Power-up Sequence The following sections describe how to get your Switch 4400 powered-up and ready for operation. Powering-up the Use the following sequence of steps to power-up the Switch. Switch 4400 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 10 seconds. Checking for Correct Operation of LEDs During the Power On Self Test, all ports on the Switch are disabled and the LEDs light in a set sequence. When the POST has completed, check the Power/Self Test LED to make sure that your Switch is operating correctly. Table 6 shows possible colors for the LED. Table 6 Power/Self Test LED colors Color Green Yellow Off State The Switch is powered-up and operating normally. The Switch has failed its Power On Self Test. The Switch is not receiving power. If there is evidence of a problem, see "Solving Problems Indicated by LEDs" on page 56. Connecting a Redundant Power System You can connect a SuperStack 3 Advanced Redundant Power System (3C16071B) 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. For normal redundancy, the Switch 4400, Switch 4400 SE, and Switch 4400 FX require one Type 2A Power Module (3C16074A). For full redundancy, the Switch 4400, Switch 4400 SE, and Switch 4400 FX require two type 2A Power Modules combined using a Type 2 Y-Cable. The Switch 4400 PWR (3C17205) requires one Type 3 Power Module (3C16075) for normal redundancy and two Type 3 Power Modules for full redundancy.

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30
C
HAPTER
2: I
NSTALLING
THE
S
WITCH
The Power-up
Sequence
The following sections describe how to get your Switch 4400
powered-up and ready for operation.
Powering-up the
Switch 4400
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 10 seconds.
Checking for Correct
Operation of LEDs
During the Power On Self Test, all ports on the Switch are disabled and
the LEDs light in a set sequence.
When the POST has completed, check the Power/Self Test LED to make
sure that your Switch is operating correctly. Table 6 shows possible colors
for the LED.
Table 6
Power/Self Test LED colors
If there is evidence of a problem, see “Solving Problems Indicated by
LEDs” on page 56.
Connecting a
Redundant Power
System
You can connect a SuperStack 3 Advanced Redundant Power System
(3C16071B) 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.
For normal redundancy, the Switch 4400, Switch 4400 SE, and
Switch 4400 FX require one Type 2A Power Module (3C16074A). For full
redundancy, the Switch 4400, Switch 4400 SE, and Switch 4400 FX
require two type 2A Power Modules combined using a Type 2 Y-Cable.
The Switch 4400 PWR (3C17205) requires one Type 3 Power Module
(3C16075) for normal redundancy and two Type 3 Power Modules for
full redundancy.
Color
State
Green
The Switch is powered-up and operating normally.
Yellow
The Switch has failed its Power On Self Test.
Off
The Switch is not receiving power.