3com 3C172203 사용자 설명서
The Power-up Sequence
23
Using the Expansion Module slot at the rear of the Switch, you can stack
Switch units together in two ways:
Switch units together in two ways:
■
The SuperStack 3 Switch Cascade Stacking Kit (3C17227) consists of
two Cascade Modules and a Cascade Cable. This kit allows you to
connect two Switch 4400 units together.
two Cascade Modules and a Cascade Cable. This kit allows you to
connect two Switch 4400 units together.
■
The SuperStack 3 Cascade Extender Kit (3C17228) consists of one
Cascade Module, one Cascade Cable and one Cascade Extender Unit.
This kit allows you to connect any of the combinations of Switch 4400
units shown in “Stacking Units” on page 22. Each Cascade Extender
Kit enables you to add one additional Switch to your stack.
Cascade Module, one Cascade Cable and one Cascade Extender Unit.
This kit allows you to connect any of the combinations of Switch 4400
units shown in “Stacking Units” on page 22. Each Cascade Extender
Kit enables you to add one additional Switch to your stack.
For more information contact your supplier, and refer to the user
documentation that accompanies these Cascade Kits.
documentation that accompanies these Cascade Kits.
When the Switch 4400s are stacked together they are assigned a unit
number from bottom-to-top for management purposes. When further
switches are added to the stack, they can be positioned at the bottom of
the stack or at the top. Either way, the Switch management software will
re-order the Switch unit numbers into a logical order again (from bottom
to top).
number from bottom-to-top for management purposes. When further
switches are added to the stack, they can be positioned at the bottom of
the stack or at the top. Either way, the Switch management software will
re-order the Switch unit numbers into a logical order again (from bottom
to top).
The Power-up
Sequence
Sequence
The following sections describe how to get your Switch 4400
powered-up and ready for operation.
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.
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.
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 7 shows possible colors
for the LED.
sure that your Switch is operating correctly. Table 7 shows possible colors
for the LED.
17204ua.book Page 23 Monday, August 13, 2001 11:28 AM