Placing Units On Top Of Each Other; The Power-Up Sequence; Powering-Up The Switch 4300; Checking For Correct Operation Of Leds - 3Com SuperStack 3 Switch 4300 Getting Started Manual

22 C 2: I
HAPTER NSTALLING THE
Placing Units On
Top of Each Other
The Power-up
Sequence
Powering-up the
Switch 4300
Checking for Correct
Operation of LEDs
S
WITCH
4 Repeat steps 2 and 3 for the other side of the Switch.
5 Insert the Switch into the 19-inch rack and secure with suitable screws
(not provided). Ensure that ventilation holes are not obstructed.
6 Connect network cabling.
If the Switch units are free-standing, up to four units can be placed one
on top of the other. If you are mixing a variety of SuperStack
and Hub units, the smaller units must be positioned at the top.
If you are placing Switch units one on top of the other, you must use the
self-adhesive rubber pads supplied. Apply the pads to the underside of
each Switch, sticking one in the marked area at each corner. Place the
Switch units on top of each other, ensuring that the pads of the upper
unit line up with the recesses of the lower unit.
CAUTION: Do not build a free standing stack of more than four units.
The following sections describe how to get your Switch 4300
powered-up and ready for operation.
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 three minutes (180 seconds).
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 and POST (Self Test)
LEDs to make sure that your Switch is operating correctly.
possible colors for the LEDs.
®
3 Switch
Table 7 shows